45rfe no 4th gear Anyhow the codes it's throwing are 0734 and 0735, 4th and 5th gear ratios being off. Clunking hard into reverse and into drive (4). These planetary gear sets provide a deeper 1st and reverse ratio and does not need a seperate overdrive unit. Hopefully I'll be dropping the pan over the next day or two and fixing some things. Parts for 45RFE: compare prices for Overhaul Kits, Friction Kits, Bushings, Bearing, Solenoid Kits, Valve body, Torque converters, Planetary Gear kits, Filters May 4, 2013 · I was just looking in the clutch application chart and when downshifting from 5 to 4, it releases the 2C clutch and applies the 4C. 00:1 reverse: Transmission (click on pictures to enlarge) 89-01 ford a4ld no 4th gear; 89-01 ford a4ld no 4th gear; 89-02 gm 4l60 - 700-r4 new wiring type, type 19 & 21 for 1989; 89-03 gm 4l60 - 700-r4 new front pump body (lip for bushing) 89-04 gm 4l60 - 700-r4 no line pressure (snap ring blown out) 89-05 gm 125 new case cover dowel pins; 89-06 gm 400 front pump seal leakage (new bushing) Oct 28, 2022 · downshifting requires no second gear like the 45RFE and 545RFE transmissions The Transmission Control Module provides comprehensive electronic control (TCM). These are the 42RLE, 45RFE, and the 545RFE. 69:1, which later became the 46RH and then 46RE. This provides you with a quick and economical option to salvage the pump. May 28, 2015 · 47re/48re are 4 speeds automatics. The 45RFE transmission was designed to build on the success that was established by TorqueFlite. fluid looks good, no metallic flakes Mechanic's Assistant: What is the model of your '02 Dodge? Jan 3, 2007 · Unlike other automatic transmissions the 45RFE/545RFE's do not use overrun clutches during the shifts. 67 UD. When it comes to the reverse, it is equivalent to the first gear. 67 2nd to 3rd 1. Jun 3, 2008 · As best as I can tell after upgrading my Durango's 45RFE to 5-45RFE this is what I have determined. 1st, 2nd, 3rd, 3rd lock-up and 4th (overdrive/4th is locked). A few years later Dodge modified the computer programing and turned it into a 5-speed and called it the 545RFE. Customer: 45rfe trans lost 3rd gear. It happened while at a stop light. It's actually a 7 speed if you account for the overdrive ratios. Aug 23, 2011 · 5=4th – 0. Jan 11, 2016 · Applying the same method of analysis, one note that the front and rear clutches are applied simultaneously only in D range third and fourth gear. with stock shift points I seem to get into 4th gear at real low speeds so for instance cruising down Aug 5, 2015 · The truck is 200 miles from me and i am picking it up tomorrow. The possible causes include a low transmission fluid level, dirty transmission fluid, issues with shift solenoids, mechanical problems within the transmission, or problems with the transmission hydraulic control circuit. 7 HO with the 545RFE tranny symptoms: MIL on, transmission in limp mode, scan tool reports P0734 GEAR RATIO ERROR IN 4TH. Dec 27, 2011 · Usually the only way you can tell whether or not there is a 5th is to drive on the highway at 70 mph and observe the tach reading. Jump to Latest P0734 - Fourth Gear Incorrect Ratio P0735 - Fourth Gear Incorrect Ratio P0935 - Line Pressure Sensor High Nov 19, 2008 · Everything is determined by with of the three components in the gear set are input and which is held. If the transmission slips in fourth gear but not in third gear, the overdrive clutch is slipping. 5th Gear - Overdrive + 4th Clutch. If the transmission slips in third gear, either the front clutch or the rear clutch is slipping. Shifts into 4th gear (overdrive) are allowed during steady cruise (for improved fuel economy) and automatic closed-throttle downshifts to 3rd gear are performed (for improved braking) when the conditions warrant. Aug 14, 2016 · How do I fix incorrect gear 4, gear 1, and gear 3 ratios [or Gear Ratio Errors in 1st, 3rd & 4th] 2001 Jeep Grand Cherokee Laredo 2WD, 4. 67 while the 4th is 0. And suggested rear end ratio is 3:70. xsvector. 75:1 As you can see, ERS and Tow/Haul lock out 5th gear (0. 5 = 1789rpm 4th gear at 65mph X 3. Fluid is good and full. 35,574 Satisfied Customers. In 2007 Dodge introduced a heavy-duty 6-speed version called the 68RFE and was used behind the The 545RFE transmission utilizes two overdrive gears, which are very close to each other. 5th gear at 65mph X 3. With 5th it should be right at 2000 rpm, while 4th will be close to 2200 rpm. Im surprised I have zero codes. Oct 11, 2011 · Hello all, I had 4th gear a couple days ago going down the road. The first has a ratio of 3. This ensures no air is present in the UD hydraulic circuit. May 7, 2008 · It is currently Sat Aug 17, 2024 4:13 pm: View unanswered posts | View active topics. CHECK FOR SLIPPAGE With the scan tool, erase Transmission DTCs. The primary 2nd gear ratio fits between 1st and 3rd gear Jan 28, 2010 · 2500 = 107 pushing a bit more trying to hit 120 just under 3000rpm it let go of the gear and revved up so backed of the revs and held at 2000rpm and was fighting between 2nd and 3rd speed jumping 45mph to 55mph , no engine light all that flashed up when it was jumping between gears was capability of 2nd gear limp-in. Each transmission is similar in design with the only differences between the 45RFE and 545RFE being an extra overdrive gear. I know there are a few things to check to see if i can get 4th gear to start working again (ie check plugs to pcm to make sure they are not bad). Depending on the year and use, it might be a standalone module or work in conjunction with the Powertrain Control Module (PCM). Robert R. It is known for being a fairly reliable transmission that can stand up to a great deal of wear and tear. Now onto some research into those codes and their causes. After the 45RFE transmission was introduced, there were a few upgrades made. I'm a 13 year Mopar tech and for the last two years, on and off, trying to find a way to 5th gear-ise my Durango. Another feature of this unit is the three planetary gear sets, as shown in Figure 2, which is one more than you are used to seeing in a Chrysler unit. Like you said, the main purpose is to keep you out of overdrive (4th gear). 7, 45rfe. no vibration or noise. The transmission won't even turn in neutral with the engine shut down (meaning you can't push the car with the engine off and transmission in Neutral, unless you shift the transfer case into Neutral Dec 1, 2006 · Finally, should the computer place the transmission into a no-shift failsafe mode by pulling power to the solenoids via the relay, the multi-select solenoid will provide a 3rd-gear failsafe in the D range by applying the overdrive clutch and 2nd-gear failsafe in the Manual 1 or 2 range by applying the second clutch (see figures 5 and 6). 75:1 and a 5th gear in the 545rfe is 0. No flashing needed. 7, traded in an '02 4. Sep 24, 2010 · The RFE transmission series began in 1999 with the 4-speed 45RFE and continues in production now as the 5-speed 545RFE and 65RFE and 6-speed 66RFE and 68RFE. Dec 5, 2015 · If you get 1st gear only (launches normally in Drive), then that confirms your OD clutch has no capacity. 2nd Gear starts w/MIL on; 4th Clutch burned; Required. 75 O/D) is about 2000rpm with tc locked. Still nothing. 01) 4. 50 mph = 2200 rpm; 60 mph = 2600 rpm; 70 mph = 3000 rpm; 80 mph = 3400 rpm. However, drivers of vehicles with a 545RFE transmission have noticed several common issues. 4th is the smallest set of clutches. All times are UTC - 5 hours [ DST] May 7, 2008 · It is currently Wed Jan 10, 2024 7:07 am: View unanswered posts | View active topics. You have a 45rfe trans right. Today my 2009 Dodge Ram got stuck in fourth gear. 1st thru 4th gear and TCC operation follow the same schedule. ) Aug 15, 2020 · P0733 and P0734 appeared when the transmission suddenly started slipping into third and fourth. 45rfe trans lost 3rd gear. 2C Oct 30, 2023 · As overdrive applys to both 4th and 5th gear, flashing it back won't fix anything. 67 ratio) but adds use of 2nd prime in the up shift pattern. Nov 19, 2013 · 2003 grand cherokee, 4. The primary 2nd gear ratio fits between 1st and 3rd gears for normal through-gear accelerations. All times are UTC - 5 hours [ DST] Oct 17, 2021 · models only) 88-52 gm 125 new auxiliary valve body gaskets for 1988-up 88-53 ford aod no 4th gear (drill casting) 88-54 gm 4l60 - 700-r4 no 4th gear (3-4 relay) 88-55 ford axod flare on 2-3 shift (direct piston crack) 88-56 toyota 140 premature failure of overdrive unit 88-57 toyota a40-44d-46de harsh 1-2 upshift (checkball location) 88-58 ford 05-01 chrysler 45rfe no 3rd or 4th gear 05-02 ford 5r110w low diode failure 05-03 ford 5r110w internal harness or solenoid body service 05-04 ford 5r110w new rear planetary and internal ring gear 05-05 saturn af 23/33-volvo aw 55-50 preliminary information 05-06 preliminary information Sonnax Part No. Mechanic's Assistant: How old is the transmission? Have you noticed any leaking? Customer: 2002 & no leaks. May 7, 2008 · It is currently Fri Feb 02, 2024 3:24 pm: View unanswered posts | View active topics. It also works with the Tuneless kits. The most well-known issues […] The 45RFE was introduced in the Jeep Grand Cherokee in 1999, it is notable for including three planetary gearsets rather than the two normally used in a 4-speed automatic. Car drove and shifted normally for a short time, then went back to showing 4 on the indicator. With many miles of hard driving your clutches have given up. All gear ratios are also shown in the chart in Figure 2. From everything I've seen, the 45RFE is a true five speed, hence the "F", but only uses four gears with different shift patterns. Got back in and nothing. Fluid is at a good level. 92 gears). Aug 6, 2009 · When operating in TOW/HAUL mode 5th gear (if equipped) is disabled and 2-3 and 3-4 shift patterns are modifed. I got a mil code for 3rd gear ratio, a mill code for 4th gear ratio and a transmission mil code that I can't remember and doesn't show up anymore. Jan 30, 2024 · One of the primary issues reported by Dodge 45RFE transmission owners is gear slippage. simply goes to neutral from second to third shift. No power to the transmission provides 4 gear The 545RFE transmission had a tall 3. Move the vehicle forward to a speed of at least 16 km/h (10 mph) and come to a stop. 45rfe code 1791 how to bleed after filter change. 4th Gear - Overdrive + Underdrive. 00:1 first gear for initial acceleration. Jul 24, 2009 · It's in the shop as we speak, for the 6th transmission rebuild. Tech Resources 2nd Gear starts w/MIL on; 4th Clutch burned; Engine stall (41 & 42 series) for 2nd, 3rd, and 4th gears. It's operation is very similar to the A604 and 42LE. OD is on in 4th, 5th, and 6th gears. 67:1, the second prime gear 1. All times are UTC - 5 hours [ DST] Mar 27, 2016 · Joined Mar 27, 2016 Posts 220 Reaction score 118 Location Brentwood, Ca Ram Year 2014 Engine 5. May 7, 2008 · It is currently Thu Aug 15, 2024 9:38 pm: View unanswered posts | View active topics. But if your giving it gas shouldn't it do that no matter what? 45mph is 2000rpm and 2800rpm -3000rpm at 70rpm doesn't seem like its going into the last gear 4th , 3rd gear od or whatever its called. There are no codes or lights as far as i can tell. 7 won't actually tell you if you have a 45rfe, at all. Jan 9, 2015 · 06 GCO, Dk Khaki, QDII, Flshing Hi 3rd Bk Lt, MDS "ON" Lt, Airtab Vortex Gens, Debadged, Fumoto Drain Valve, BT Catch Can, Chopped EGR Tube, SRT8 CAI, AFE Air Filter, 6spd 545RFE, Sonnax Trans Line Press Booster, SC Tuner W/Adv Trans Tune App, DS and HP tuners, Transgo Shift Kit, ARH Long Tube Hdrs w/3 in Magnaflow/Xlerator AP Exh Sys, Bilsteins, SRT Springs/Sways, Cust Eng Cvr, SRT8 frt/rear Jul 13, 2023 · 65RFE Transmission 66RFE Transmission 45RFE Transmission 545RFE Transmission 68RFE Transmission. 00. Jan 19, 2024 · 31. Fourth gear (. ” It’s logged when the PCM detects that the RPM of your input speed sensor doesn’t match the expected RPM in 4th gear. Get it scanned, see if you have p0700, p0734 & p0735. 44892-01K Requires 44892-TL Solenoid Switch Valve Plugs • Codes 841, 868, 871, 988, 1775, 1776 • Bind-up • Failsafe mode • OD clutch burned • Wrong gear starts • TCC apply & release concerns (41 & 42 series) • Engine stall (41 & 42 series) • No lockup (41 & 42 series) Replace with Sonnax Part Nos. Underdrive is used in everygear. 00:1 1st gear 1. Nov 2, 2011 · In 2003 the transmission was still the 45RFE, which only had a single OD - 4th gear. After pulling the valve body, everything seemed intact. 67 X 336/30. The computer just makes an extra overdrive by using a different set of clutches. When the 545RFE transmission was launched, it had the broadest range of gear ratios within its class. 56 R&P/DTT, Sonnax Line Booster, SRT-10 Pod w/Dynojet Wideband Commander, 2-speed manual transfer-case, Clifford Security System w/Auto Start/Auto Windows, RB1 CD/DVD/NAV Infinity Sound System w/30GB iPod, Offroad Package, 33" Bridgestone Dueler A/T, Mopar Rear Wheel Liners, K&N w/Airaid May 7, 2008 · It is currently Tue Aug 20, 2024 2:50 pm: View unanswered posts | View active topics. 3L won't shift in 4th gear anymore. The primary 2nd gear ratio fits between 1st and 3rd gears for normal through-gear accelera-tions. Sounds like the OD clutch kiss of death. Then the next day I tried it and the problem came back. Check operation in 3rd gear, 4th gear, and Reverse. My only major complaint is the high RPM's on the high way (3. Do you think it could also be the P0720: Output/Speed Sensor? I have had this Jeep since it was new, now with over 213,000 miles on it. 00:1 3rd gear 0. No power to the transmission provides 4th gear and reverse. All times are UTC - 5 hours [ DST] May 7, 2008 · It is currently Fri Jun 14, 2024 8:36 am: View unanswered posts | View active topics. Check Engine light came on and said something about 3rd and 4th gear P7003? P7004? cant remember off the top of my head. 75 X 336/30. For example, if a Sun Gear is spun via a shaft and the Carrier that hold the Pinion (planetary) gears are held by clutches, the Annulus gear will be spun and can be used to transmit power via a hub or gear welded Aug 21, 2014 · Got my Jeep back from the shop and the codes recovered from the Transmission Control Module (TCM) are "incorrect gear ratio 2nd gear and 4th gear". Dec 20, 2010 · 03 hemi 4wd. These ratios were orchestrated to output all torque. Page 95 AKPPHELP. Spring pressure combined Jan 18, 2017 · Old three and four speeds (manual) had the final gear as direct drive, 1:1; in the 80's they really started to introduce overdrive transmissions for fuel economy. Mar 7, 2012 · There was no check engine light so I assumed that it was due to stored codes from the previous failure! Three days later (all with perfect shifts and zero issues) the service 4wd message is still on but the check engine light came on after work today, 5 miles later I pulled out onto the highway and it went to limp mode (3rd gear), I stopped Feb 1, 2020 · Transmission "slipping" 45RFE 4. 8L, 42RLE, ~80k miles, SD60/10. The trans also kicks out of 4th gear even at the lightest touch of the pedal and I am hoping the 545 upgrade might help The symptom of this fault code is an incorrect gear ratio in fourth gear. The fifth gear gives an overall gear ratio of 0. It'll slip upshifting or downshifting into these gears, and it seems to do it worse in third than fourth. So far Dodge has; replaced solenoid switch, replaced valvebody assembly, replaced powertrain control module, replaced transducer-pressure sensor, removed trans and replaced transmission pump and both filters. All times are UTC - 5 hours [ DST] May 7, 2008 · It is currently Tue Mar 26, 2024 1:11 pm: View unanswered posts | View active topics. I dont have OD now. asetech. 5, 5. All times are UTC - 5 hours [ DST] May 7, 2008 · It is currently Wed Aug 21, 2024 9:24 am: View unanswered posts | View active topics. Corrects/Prevents/Reduces: Codes P1740, P0740 or P0741; Lock-up slip; Lock-up shudder; Flare up during gear changes; On some models no 4th, 5th, or 6th; Overheating; Includes: Precision USA-made 7075 aluminum sleeve Dec 3, 2023 · Transmission going into 4th Gear (Another Jeep) Jump to Latest 707 views 11 replies 2 participants last post by semperfi2048 Dec 20, 2023 Feb 9, 2008 · GM 4L60E no 4th gear. 00:1. Third with the tc unlock towing is about 3k rpm. Apr 12, 2011 · An example of a transmission identification number would be 1015 10492P52119684AA. For that shift, the 2-4 servo acts as a 3rd gear accumulator, because it still has the 2nd gear oil applied to the front of the servo. 7L Cummins Diesel engine. I have had this problem ever since. The first three digits ( 101 ) of the identification number equal the day of the year, in this case 101 equals April 11. 00:1, the fourth gear 0. Actually, in "logical limp-in", where it will launch in 1st gear and then shift directly to 4th. It goes like this With overdrive on: 1-2-3-4-TCC-5. 7l V8. seems to be hesitating or slip Jun 19, 2010 · The three planetary gear sets also make available a unique alternate second gear ratio. This occurs when the transmission fails to engage or hold a specific gear, causing the vehicle to unexpectedly shift or lose power. The three planetary gear sets also make available a unique alternate second gear ratio. Example: Upshift sequence: 1,3,4,5 Downshift sequence: 5,4,2,1 5th gear remains the same no matter what. Jan 28, 2010 · Well I checked and the rpms do go up a little. All times are UTC - 5 hours [ DST] May 7, 2008 · It is currently Tue Aug 20, 2024 10:19 am: View unanswered posts | View active topics. All times are UTC - 5 hours [ DST] Jul 7, 2008 · I've done the math as well. There wasn't a "Tow/Haul" mode, just an OD lockout, ie 4th gear lockout. 31 pressure test locations and procedure primary mechanical components 3 multiple disc input clutches 3 multiple disc holding clutches 3 planetary gear sets 5 hydraulic accumulators dual stage hydraulic oil pump valve body transmission range sensor/solenoid pack general operation information fluid level check procedure there are only two pressure taps supplied on the transmission case. catback, Bilsteins, SRT bumpers/roof rails/brake cooling ducts, SRT Lwr Sprgs/Sways, FRI Sidewinder Cam Adv 6*, 6. Air cooled boxers need rpms to keep temperature balance, too few rpms or too many causes the oil to get too hot. 38 gears, 40s, I bought it from 2big bronco but he didn’t build it. Sep 12, 2020 · Put the shifter in drive and it showed D. Nov 4, 2022 · Like we have said the design was taller with 3:00:01 first gear intended for the initial acceleration. 1 valvetrain, SLP 25% UD Pulley, BBK 90mm TB, SOS Coils, TEA There are no bands in this transmission. Aug 12, 2011 · 1999 Grand Cherokee Limited No Overdrive I am getting no overdrive on my 1999 Jeep Grand Cherokee Limited with the V8 too, but not with the check engine light coming on. main menu bulletins chrysler Oct 22, 2021 · The P0734 code stands for “Gear 4 Incorrect Ratio. Check engine li Oct 7, 2018 · 06 WK/GCO, MDS "ON" Light, Vortex Gens, Debadged, DashHawk, BT Catch Can, SRT CAI, AFE Hi-Flow Filter, Sonnax Trans Press Booster, Transgo Shift Kit, 6 speed 545RFE via 08 PCM and HP Tuner, ARH long tube headers w/3 in. Otherwise it might be the braking belt, which is then just worn out and needs to be replaced. A true autostick starts in 1st and does not upshift until you move the shift lever. One of the biggest changes the 45RFE transmission saw was that it had three separate gear sets instead of the two that were commonly found in its predecessors. About 30mph through almost 45mph, normal driving in either 5th or top D drive gear, this noise occurs similar to the recording posted. My 97 Chevy Blazer 4. The 45RFE uses no shift valves; all friction ele- unique gear train has enabled the 45RFE to meet these 4th Clutch 2ND 1. 67:1 2nd gear 1. 50:1 2nd (under hard acceleration) 1. The bottom line is the cooler return line. The 2C should be ok, otherwise you would encounter problems in second gear as well, but the 4C is only used in 4th gear and second prime. Oct 9, 2016 · I left it for a while and drove it again, with no problems. Sonnax Part No. I have added a set of 265 duratracs and the truck runs well. But on the 2-3 upshift, direct apply oil is sent to the back of the 2-4 servo. They are the same thing as the 545rfe. The alternate second gear ratio (2prime) allows smoother 4-2 kickdowns at high speeds to provide 2nd gear passing performance over a Jan 4, 2025 · RE: 45rfe/545rfe IP: Logged Message: I like to add my . It will go in neutral and reverse but not in drive. 7 Hemi 2WD Quad Cab May 5, 2017 · Chrysler 45RFE, 545RFE, 65RFE, 66RFE, 68RFE Vacuum Test Guide Vacuum testing is an efficient way to identify the root cause of transmission problems and evaluate the effectiveness of repairs. Dec 13, 2013 · SOURCE: Hesitation shifting between 3rd and 4th gears yes i have heard of this and my friend is on the second transmission in his 2006 2500HD. In the older car I don't see it being a big deal as it is possible to go too far and actually loose mileage and performance as well. How to start root cause analyse Dear Tranny People, I am Electric girl and need some help of mechanics to do a propper root cause analyse. It was first introduced as a 4-speed and called the 45RFE. had a AAMCO rebuild Feb 13, 2012 · Fourth gear is the gear in default (limp-in), so as soon as it slips it puts you in limp-in. RU Руководство по ремонту АКПП Technical Service Information PARK GEAR Page 111 45RFE TRANSMISSION SPECIAL TOOLS 4th Aug 31, 2011 · Yes, you MUST get it to the dealer with it locked in 4th. So when in tow haul mode the transmission won't go higher than 3rd lock-up. Aug 15, 2020 · My 5-45rfe is having issues, slipping into third and fourth. 73 X . Not just 4th then, 5th as well. 5 Nov 19, 2013 · 2003 grand cherokee, 4. Everything seemed to point at a cracked accumulator plate, and maybe an issue with the LR/TCC solenoid. had a AAMCO rebuild 9300 miles ago. Hence, it can accommodate hefty loads more easily. 4. I plugged the truck into a scanner and it said. Apr 10, 2016 · The only real difference I can find is the 45rfe has a finial ratio in 4th gear of 0. I tow a 43' gooseneck everyday (when it's not in the shop!), and everytime it has done it, I was loaded with loads around 10,000 pounds or more. Goes away above and below those speeds in D gear or if I downshift to 4th gear. Here’s why: The band is applied in 2nd and 4th gears. 1st Gear - Low/Reverse + Underdrive. Oct 21, 2008 · I tend to think that the 3rd and 4th gear were related and it was another set of frictions. It will run through 1st and 2nd no problem but when it goes to grab 3rd, the motor just spins up as though Oct 3, 2024 · 2011 JKUR, 3. The 545RFE transmission is considered a 5-speed transmission with 6 forward gear ratios. You can short shift (quick upshift) if desired to get into a higher gear quicker. It’s perhaps the fastest growing market today for transmission builders, in part due to an increase in popularity from truck enthusiasts — who are modifying them to never- before-seen power and torque levels — plus the sheer number of these units on the road. I had given up a few times finding that th Sep 24, 2010 · Sonnax Transmission parts for Chrysler 45RFE applications. Everything works fine but 3rd and 4th, truck won't shift to 3rd. Jan 1, 2020 · -12F and -10F the transmission shift sequences are as follows: *No torque converter lock up *No shift in to 5th gear *Delayed 2-3 upshifts *Delayed 3-4 upshifts *High speed 4-2, 3-2, or 2-1 kickdown shifts are prevented *High throttle opening shifts will be early *Switching off Overdrive will prevent shifts into 4th gear -10F - 36F the May 21, 2020 · 2011 JKUR, 3. It is stuck in 4th gear in the auto stick mode. seems to be hesitating or slipping when it tries to shift into 4th, then downshifts hard, then upon trying to accelerate again it May 7, 2008 · It is currently Thu Feb 23, 2023 3:21 pm: View unanswered posts | View active topics. the first time there was internal issues and the second time they ended up changing out the whole tranny. In this case it could well be the same scenario as I described above with the N to Drive engagement. Related Parts. Mar 11, 2018 · A whining, whistling, humming hydraulic sounding noise that I am almost sure it is in transmission. MECHANICAL OPERATION Jan 3, 2007 · 4th gear is gone. All times are UTC - 5 hours [ DST] May 7, 2008 · It is currently Sun Feb 26, 2023 5:16 am: View unanswered posts | View active topics. 6th Gear - Overdrive + 2nd Clutch This is a very common configuration for a double overdrive torque converter style 6-Speed automatic transmission. So 1015 equals April 11, 2005. It keeps breaking the snap rings in 5th and 6th gear. 7 L , 45RFE Transmission 192,832 miles. Perform repeated N-D shifts at a stop while pausing in Neutral for at least 2 - 3 seconds and monitor NORM N-D UD CVI volume until the value stabilizes. I have a 45rfe lost 3rd and 4th gear. On both transmissions, the 5th gear ratio is actually an alternate 2nd gear ratio known as "2nd prime" and is created by the addition of the 3rd planetary. Even the factory where the transmission was made was also brand-new. 0L Grand Cherokees, for example, could achieve lock-up only in third and fourth. I don't think tow haul on dodges changes shift points. Aug 19, 2016 · Eventually I turned off OD and it clunked down into fourth and stayed there. This is done by the clutches. Sounds Hydraulic. - Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST. 75; that about a 10% difference. Driving back the other day and the truck revved up like it lost gears. All times are UTC - 5 hours [ DST] May 7, 2008 · It is currently Thu Apr 04, 2024 8:42 am: View unanswered posts | View active topics. However, if your OD clutch is gone, 4th gear will feel just like 1st gear. Also, both 4th and 5th are overdrive gears. The 5-speed, RWD 545RFE is the most common version currently on the road. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction. My 09 Ram on the Florida Lemon Law list for that same problem. It only carries about 60% of the input torque in 4th gear (it carries 100% in 5th and 6th), so if it neutrals out in 4th, that is unusual. All times are UTC - 5 hours [ DST] Aug 18, 2020 · The Chrysler 68RFE was utilized in the ’07–’20 Dodge Ram 2500 and 3500 with the high-torque output 6. MECHANICAL OPERATION Dec 28, 2021 · As for my transmission issue today I was stuck on 4th gear and had no acceleration until I turned it off and back on again not sure whats up with that but I managed to pull these codes after it happened: P2701 - Inadequate Element Volume 2C; P0841 - LR Pressure Switch Rationality Another feature of this unit is the three planetary gear sets, as shown in Figure 2, which is one more than you are used to seeing in a Chrysler unit. 75:1 4th gear 3. Which I thought was a good thing since I'm just guessing as to what is wrong. Gear slippage can be a result of worn-out clutch plates, a faulty solenoid pack, or low transmission fluid levels. 3. MECHANICAL OPERATION forward gear ratios. The 5th forward gear is applied after 4th gear (duh) and TCC lockup. It’ll just rev at the top of 3 till you slow down. Frequent, proper vacuum testing can put money in the bank, improve turnaround time in your bays, and prevent costly comebacks. Mar 6, 2023 · Does it shift from third to fourth and just rev? It won’t go into 4th. The engine light come on due to the no shift. •2009 –LATER Models with ERS (Electronic Range Select) do not provide for 2nd gear limp-in because the selector lever does not have Manual 2 or Manual 1 positions. The 45RFE, however, could lock its torque converter in every forward gear except first, and this greatly May 16, 2008 · 2002 Ram 1500 SLT 4x4 QC ~ 02 Ram 45RFE to Jeep GC TCM 5-45RFE Upgrade - (Nov. Some possible causes for the code include low transmission fluid, a defective 4th gear shift solenoid, and transmission failure. 3rd Gear - 4th Clutch + Underdrive. Just revs up like its slipping. The overrun clutches in other automatic transmissions, from what I understand, are momentarily applied during gear changes to synchronize the clutch speeds between the clutch that is de-applying and the next clutch that is applying. The 545RFE transmission was simply the same basic transmission as the 45RFE except they added a 2nd overdrive gear, (5th gear) to the equation. 1, the second gear 1. Aug 3, 2015 · There are three different transmissions in your Dodge Ram, depending on the year and engine. Jun 14, 2020 · C: Gear ratio determined as gear position which TCM supposes If the actual gear position is higher than the position (4th) supposed by TCM, the slip ratio will be more than normal. Mar 9, 2021 · The Chrysler 545RFE transmission was installed in various Chrysler, Jeep, and Dodge vehicles from 2001 to 2011. 2nd Gear - 2nd Clutch + Underdrive. Dec 5, 2014 · I recently purchased my 4th Dakota a 2002 crew cab 4x4 with 4. Aug 2, 2015 · Just fyi, 45rfe started being used in 1999. Earlier this year it decided to stop shifting into 3rd or 4th gear. Thus far, I have been reducing ODB II diagnostic codes to pare it down to the codes for the above; P0731, P0733, and P0734. Road test the vehicle. The Truck is not trying to go in at all. In 2007 they introduced the 68RFE for Dodge diesel applications but was replaced with the Aisin AS68RC transmission. 7 and automatic transmission. I up that to ~64 mph. During the time this transmission was introduced, there were more gear ratios available in its class. See: A L L Diagnostic Trouble Codes ( DTC ) > Verification Tests > 45RFE/545RFE Transmission Verification Test No - Go to 9 9. May 16, 2010 · 2. originally also had P0735 GEAR RATIO ERROR 4TH PRIME, but after clearing codes it keeps coming back with just the 734. any insight? throwing. May 1, 2008 · Finally!! 01 45RFE upgraded to 545RFE TCM Exchange Available First post, nice site. Delayed Nov 14, 2010 · Sounds like a bad OD clutch. No failure codes stored which give me a hint. Board index » KJ/KK/KL Liberty/Cherokee Discussion Areas » General Discussions. Aug 19, 2016 · Anyhow the codes it's throwing are 0734 and 0735, 4th and 5th gear ratios being off. For instance, the 2004 ram 1500 4. Parked the truck for the night. 50:1, the third gear 1. 1st,2nd,3rd,4th, 4th od, 5th, 5th od. Aug 7, 2007 · I just got an '04 QC 4X4-5. 02 to this. 67:1. There is a bit of misinformation regarding these. 7L V8 without a hemi did indeed come stock with a 45rfe Checking to see if you have a 4. Gear Ratios: 3. 2. So is underdrive. First time it did it, it wouldn't shift past 4th gear. The fourth digit ( 5 ) of the identification number equals the calendar year, in this case 5 equals 2005. It also features three multiple disc input clutches, three multiple disc holding clutches, and a dual internal filter system (one primary filter for transmission sump, one for the fluid cooler return system). . Car was clearly stuck in 4th gear as it did not shift when getting up to highway speed. At 65mph, third gear (direct drive) with tc locked is 2700~rpm. In Chrysler auto terms, the 727 was a 3 speed auto with a direct drive (1:1) final gear, the A500 just added a 4th gear as an overdrive, . (At least that is how my 2003 1500 is. The alternate second gear ratio (2prime) allows smoother 4-2 kickdowns at high speeds to provide 2nd gear passing performance over a wider highway cruising range. ((Govenor Pressure Solenoid Voltage Too High)) I replaced the govenor pressure solenoid and senosor. If you want to loose the two overdrives, depress the button on the shifter and it will not use the overdrive and be a 5 speed. 75:1, and fifth gear 0:67:1 and the reverse gear at a ratio of 3. When I hit the OD button again it wouldn't even try to go into OD and the check engine light came on. 31 Answers. When I use the SC ATT app. All times are UTC - 5 hours [ DST] Prior to the 45RFE’s arrival, most transmissions would only lock their torque converters in the top-most gears – the 42RE that Jeep still used for 4. Next step would be to drop the valve body and air check the OD clutch passage to see if the clutch piston seals are leaking. Jan 16, 2020 · The Dodge RFE transmission series began in 1999. Sep 18, 2011 · Mine shifts from 4th to 5th at ~60 mph. If you can see it, look in the glove compartment at the tag. Limp mode on these vehicles will be 4 thgear. Transmission stuck in 4th gear. 38 gears, 40s, I've had it about 3 years, but bought it already built. The reverse was designed to be equal to first gear to accommodate heavy loads easily. Nov 28, 2013 · Similar to the Gene Berg 5 Speed Manual Transmission for the Volkswagen Type 1 Sedan (Beetle), 5th gear was essentially too close to 4th gear making it pointless except for somebody who was die hard for a 5th gear. No tools required. ERS and Tow/Haul are the same as far as shifting order and gear limiting goes, Tow/Haul just holds each gear longer and downshifts much sooner when slowing down for engine braking. With overdrive off: 1-2-3-TCC. 7L with 91K/3588hrs, 4. I guess you can have major transmission problems without popping any for optimum driveability. There's no way to lock out 4th gear with an '05 Ram. It’ll go 1 through 3 but doesn’t go into 4th gear. The value will change during the N-D shift. nteguw wqwj mliyz dkzcic zotf vex ongu bhdo pwelo tkp upykr hxps mkkiqzi owgq aps