48re shifting at high rpm. Truck: 2006 3500 4X4 Auto (48RE) dually crew cab.

48re shifting at high rpm 6. The tow/haul mode simply changed the shift points, to get it to Did you try manually pulling the shifter into 1, then manually shifting into 2 then D. That seems too high. With the kit installed it brings a whole new driving experience to the truck while keeping the shift timing at the OE RPM’s for the optimal engine power curve Ok guys, I think I solved this. I had codes p1751 50% Throttle shift @RPM WOT Shift @RPM When testing the truck you want to have the truck in D and around 1800 rpm. Occasionally wit Gov pressure increases as TOS speed increases and it is what determines the 1-2 and 2-3 shifts. Truck: 2006 3500 4X4 Auto (48RE) dually crew cab. Overnight this thing stopped shifting out of 2nd gear. to/3bSqXRNGovernor Pressure Sol Hope someone can help. O. The trans shifts 1-2 at high RPMs and 2-3 at higher RMPS and 3-4 at normal RPMs. 5 injectors. Now going down the highway in OD I've got a random hickup happen 3 times, for a split second rpm picks up then goes back to cruising. OP, how is the 2-3 shift and what mph under normal throttle? I go back to OP's post #1 where he states in drove fine for several weeks then started holding 1st too long, and, after getting to 2nd gear all the shifts are fine. I had to get it up to around 2300 rpm to shift. The 48re has a torque rating of about 550-570 ft 48re shift issues (2004 dodge 2500) Not the "shuttle shift" I've been reading about where it hunts for the right gear, but where it's going a few hundred rpm higher than normal followed by a really solid shift. Just trying to get longevity out of engine. S475, ARP425,n2o, Snow Stg 2, HP tuners,Autometers,85%cp3,Goerend v. I took the truck into the trans shop on Tuesday. Edge tuner. No gears left. And when it does shift to 4th it will only stay in 4th until about 55 mph then you have to work the pedal just right or it slips right into OD. BBI . Jump to Latest February's Cummins of the Month is now open for entries! 41 - 60 of 62 Posts. 5 3500 24v CR with a 48 RE. Gears change late or at high RPMs; The transmission gets stuck in gear (limp mode) Overheating; Delayed or harsh 3-4 or 4-5 shifts. I am just trying to figure out best rpms to shift. Oh boy, 48re won't shift into OD Jump to Latest 99K views 21 replies 15 participants last post by rgsauger Feb 16, 2024. after that it seems normal just 1st and 2nd can be ty sometimes delivering that power. Even manually shifting it to 1st does not work. Isn't this too high or is it just me. 2005 Dodge 3500 QC/SB-BUILT 48RE-ISSPRO's-SMARTY JR-GUTTED INTAKE-SILENCER RING MIA-BD INJECTORS-MAGNAFLOW 4"TURBO BACK-2" Dodge won’t shift into overdrive. First thing in the morning when the trans is still cold it doesn't want to shift into 4th unless I New 48RE hard shifting! Jump to Latest 2. 50% Throttle shift @RPM WOT Shift @RPM When testing the truck you want to have the truck in D and around 1800 rpm. Gear Shifting Issues. 2003 2500 H. It is not downshifting to 1st. If you notice a delay or hesitation when shifting gears, or if the transmission shifts erratically between gears, it could be a sign of a problem. Just installed a new BD billet proforce 48re in my 06 2500 over the weekend. Now at 145,000 miles and 30,000 miles on a rebuilt transmission from Randy's in Tooele UT, behind a 425 hp (max) engine rebuild by Industrial Injection. Everyone says an allison will live a short life with no defuel and I'm not here to argue that fact. The trans will never shift to 4th from 3rd until you're giving it like 20% throttle. Easy 10 minute, $30 1030423 2006 Dodge 24V 48RE IMPORTANT – READ ALL INSTRUCTIONS BEFORE INSTALLATION. After researching online I've pulled the batteries for an hour to reset the computer with no luck. Under normal throttle the 1-2 shift should happen about 15 mph, the 2-3 shift about 30 mph. That's a common failure in the 48re. They took it for a test drive and also hooked it up to the scanner. They also changed the fluid and tightened band 1 and 2. Should perform proper service and road test to help diagnose properly. A. When towing, shifts are quick. Then it shifts correctly. 48RE. Good time for a fluid/filter change as well. Was driving 1200 miles straight towing a 3K lb trailer and now the shifting is weird. When it does shift it shifts really hard and down shifts just as hard when slowing. 0 3rd Gen Dodge 5. 25k on it. G. >>> View our 48RE Transmissions & Parts Catalog Here! Conclusion to the 48RE Transmission: The 48RE transmission was never originally designed to be used in large diesel trucks, but rather inflated to “make it work. The trans won’t shift into 2nd until about 2300 Rpms. 30-35 mph. I too have a 48RE that won't shift into 4th gear, in the lower gears the tc does lockup, I know this is a old thread but it is similar to our issue, thanks 06 Dodge Ram 3500 Mega Cab, Wife's Truck, Twin Turbo's, Built trans with Suncoast Internals, BD Trans Cooler & Filter Kit, Precision Converter, 33% over CP3 running 100hp Injectors, Fass 150 for supply, EFILive by 06 2500 TRX4 5. Drive at a speed such as 60mph, take note of the RPM. 42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904; Troubleshooting Is it a 47 or 48RE? When I was shopping for a gen 2 Ram Cummins, @clinebarger filled me in in some info related to these transmissions, and subsequent reading indicates that some of these behaviors are normal. BD Diesel Torquemaster transmission with all the billet bells and whistles. Hydraulic fluid seems to be the best fluid at reducing slippage although it is generally high viscosity so not friendly at 100% I have a shift kit the hard parts you have mentioned and this solenoid/electronics upgrade kit, 46re 47re 48re Solenoid Upgrade Kit Dual Pack Solenoids Governor Pressure Speed Sensor Electronics with a single disk, Georend S115, billet converter. Built trans. during a downshift, or if I make the skinny pedal kiss the floorboard, its almost like it wants to stay high RPMs in 3rd gear (I assume its 3rd gear) before it goes back to 4th. After thinking it over I am just going to have to save up and have a transmission built to better suit the truck, with the current mods that I Vehicle you are familiar with – Why is my transmission shifting at high rpm? Dirty transmission fluid and/or clogged transmission filter – Gear changes are actuated by pressurized hydraulic fluid/transmission fluid. 2005 QCSB, 4x4, 48re, Revmax Valve body W/ Sonnax intermediate servo, Billet Accumulator, cat 2 micron filter & water sep, 4 A very high percentage indicate the problem comes back after a few days or months, so not very long lived as condition causing must detoriate futher. 03-07 Powertrain. It drives great shifts perfect. 285X75-R17. Transmission prior to install / maintenance 1st to Did all of the above over the weekend, the transmission showed improvement but it is on its last leg. Save Share So I had a transgo shift kit installed in my transmission last weekend by a reputable shop. But shifts smoother than any of the gears when it shifts. T. My issue is that it's not shifting from 2-3. Additional parts required: 48RE pump stator support seal, Goerend triple disc torque converter. after i got out i tried to drive bout half throttle and it shifted to high gear low rams like i was hauling a huge load. at 55-60 mph it is best to turn od off the high toque of a cummins at low rpms is not good for things. The trans does seem to shift weird sometimes (gear searching I think its referred to). Been getting some weird shifting the last couple of days. 9L, 4X4, 48RE, BorgWarner 50185 solenoid, 60hp injectors, AFE intake, TuffCountry lift, Leer shell. Early transmissions (46RH, 47RH) used a mechanical governor on the output shaft, and the newer RE transmissions replaced the mechanical governor with the governor pressure Here are some common indicators that your Dodge Ram 48RE transmission may be experiencing problems: 1. Valve body work to alter 1st through 3rd shift points on an 04-07 48RE is really just delaying or accelerating what the computer is telling the trans to do via mechanical means instead of just changing the programming directly. (soft or severe shifting, high transmission temperature). For info should take some time and learn about your truck and its 48re trans. SERVICE INFORMATION 21 - 1361 2. Your desired pressures seem to match 2007 3500 MEGAcab, 5. 9L Cummins BD1064232F / 1064234F at Diesel Power Products apply pressures over the stock unit and up to 50% over the competitors with the increase starting at much lower engine rpm's and at lighter throttle pedal position movement. Check out the deal on BD Performance 48RE Transmission 04. This can manifest as delayed or harsh shifting, gear slippage, or the In this Drivetrain 101, we thoroughly inspect and analyze the origin, strengths, weaknesses and pragmatic upgrades of the 48RE transmission. Preventive Measure: 2. I will get a new sloeniod & transducer. Aug 4, 2021 #1 RonG Junior Member 47RE/48RE BD Valve Body For 1996-2007 Dodge 5. My 04 Ram 2500 133,000 miles started out of the blue not wanting to shift into second will shift after holding 2800 rpms for 20 seconds or when I let of throttle and feather throttle back on with right road speed but will slip back into first. TC does not slip at high RPM's in low gears or climbing hills. 9L Cummins Trucks 1030416 1996-1998 Dodge 12-valve hard shifting, high temperatures). 05 QC LWB 4x4 Auto 3. To alter those shift points you need to play with the governor pressure and adjust your TV cable to smooth out the shifts. Transmission prior to install / maintenance 1st to 2nd gear under grandma acceleration (how I drive) transmission shifted at 1450-1550 RPM and then 2nd - 3rd gear was Problem: I have an 06 5. All other gears shift fine and downshift fine. Believe it or not I don't think there was any problem with the sensor itself, but if you look at the female pins in the connector for the sensor, they are clearly round pin type, and the sensor has male 'flat' pins. 3. QCSB 4X4 48re. If the ATF is dirty, i. I'd have to accelerate with Overdrive off, and hit the button at a higher acceleration and RPM for a seamless shift. Last rearward detent is PARK position. After disassembling the valve body, the transmission tech discovered that he had actually installed the 1-2 shift valve backward. Recently, shifts between 1-2 and 2-3 have been slipping. So if there is drain back, or just not a lot of pressure, not much will happen. Works great. These issues can be caused by worn-out clutch plates, solenoid malfunctions, or problems with the valve body. 4in flowtech, AFE Bladerunner, Custom airBoX,90hp tips, 3" lift, 20" XD Addicts,35" Trail Graps, '08 Sport front end, Ranchhand rear bumper. I definitely don't have that. SECURITY Out of TH mode 1-2-3 rpms keep climbing, no shift yet, approaching 2k rpm. I?ll post up a 4-3 shift table later for you to try. I now have a 2004. Reverse works fine, 1st and 2nd in manual shift work fine. The upshift value must also be at least 50 RPM lower than the downshift value for the next gear. 5-07 Dodge 5. Start with info in FSM at Newbies guide to your new to you truck IMO, as far as Jasper rebuilds are concerned they are junk. 2. e. rpm higher again hold picking up speed. Finally got the truck up to temp and I was able to get it to shift into 2nd. 3-4 shift at +/-50 mph occurring? Way over service and band adjust. Slipping gears can manifest as a loss of power or a sudden increase in engine RPM without a corresponding increase in vehicle speed. replaced Gov pressure sensor and soleniod. When I take off from a stop. 289 posts · Joined 2008 Add to quote; Only show this user Starts with no issues cold and then starts to delay shift from 3-4, Then 2-3-4, Then starts seeking 2-3-4 at high RPM. Turn 00 switch on. Disengage the cable eyelet from the transmission manual shift lever. My truck is not in this thread in this sub-forum in the entire site. If you click them and make a purchase, we may earn a small commission. I can sometimes shift to N and back to D quick and it'll go to 3rd. Thread starter RonG; Start date Aug 4, 2021; Tags 48re fluid level shift indicator valve body Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. I really do hope this helps other guys out there with the same Bearing in mind that this phenomenon could happen only in an automatic transmission configured like the 48RE, the shifting protocol was indeed taking place, but the 1-2 shift valve was stuck in place. Thread Tools. Downshifting is similar. Guess your front band is like momma if she's not happy then 1. Blaine99 Discussion starter. Check transmission fluid level before these tests. It will go as far as I will let it go on the RPMs without shifting if i do not let out of it. Further, we point out notable differences between the two, and answer other frequently asked However, now the RPMs rev way up to around 1,800-2,000 before shifting somewhat hard into second. 403k miles. Testing has shown a significant decrease in the harshness of the 3-4 shift that 3rd generation trucks are known for when adding a triple disc torque converter. I talked to a guy who used to work at a dodge dealership who now works at chrysler, but specializes in chrysler transmissions. IGOTACUMMINS is an I. the shifting had been ify before the csp5 tunes. Yes it will take a little for the rpms to drop back down with a common rail due to rail pressure but it should not just hang and hold high rpms like that. The transmission won’t shift into 3rd gear. However being he is coming from second gens he might just not be use to it coming down slowly like you said. I did the basics changed fluid and filter, then it would shift but only after it was warm and I completely let off the pedal and let the RPM's drop to around 1k or lower, if not it would redline and still not shift under power. When driving with cruise control on, engine RPM's fluctuate on level pavement at a stable speed up and down 300 RPM's, like the torque converter clutch keeps releasing the engine lock then re-engaging it. Hello all, I have an 04 3500 SRW 4x4 lifted, has injectors, turbos, fass, CP3, intercooler, pusher piping and intake horn, oil and coolant bypass, smarty touch with custom tuning. The only logic in the JTEC/+ for the RE High quality clutches will survive most power levels in this part of the transmission with minimal concern. 1. 2800-3000RPM (Wide Open Throttle) VERY IMPORTANT – Road test with gauge in place and record pressures and shift point RPM’s BEFORE modifications are carried out to determine the condition of the These are the products you'll need!Transmission Fluid: https://amzn. First, there is governor pressure, which is determined by road speed. Worked great for ~7K miles. After disassembling the 48RE shifting problems. Shifts are quick and firm when not towing. . It was just happening when the trans was cold, now it's happening randomly. Built autos I will expand on this below. And it goes into the first one at 50-55mph then the second one around 65-75mph you feel it and hear it shift into them rpm wise '06 Ram 2500 Mega Cab leveled. my 2nd-3rd shift and my 3rd-4th shift it hangs in gear at a high rpm before it shifts do ya'll think this will This TransGo 48RE SHIFT KIT® Valve Body Repair Kit fits 2003 to 2008 Dodge and Ram vehicles equipped with the 48RE automatic transmissions with a gas or diesel engine. do the same thing cheaper except you will have to remember to turn it off. Solved - Engine Overheat Only over 2500 RPM My truck very quickly overheats whenever I let the RPMs get to 2500 or above. maybe its sticking in 2nd before it goes to 3rd, then to 4th. Another way to check. Fluid Leaks 2006 48RE Trouble Shifting 1st to 2nd. 7138 posts It won't shift My 48RE and valvebody is rebuild with Suncoast and Trans-go and new TC. Dead stop, mash throttle it shifts through all the gear at 32-3600 rpms. Your TV cable is going to have more of an affect on shift smoothness and to degrees affect your 1-2, 2-3, 3-2 and 2-1 shift points. Billet input, flexplate, low stall triple disc, the usual internal goodies. Is your 48RE transmission shifting poorly in 1-2 gear? Is it holding 2nd gear to high RPM under light throttle and then slamming 3rd gear? Is it hunting back and forth from 2 - 3? Replace the governor solenoid with the gm upgrade and the transmission transducer sensor. I did have a fully built trans, never gave me an issue except some electrical stuff last year--> it was going into lockup in 1st and wouldn't lockup in 4th and shifts were smooth couldn't 2003-2007. I really do hope this helps other guys out there with the same problem. Did a transgo shift kit myself, pressures looked good. When it shifts it shifts hard. So far I have been easy on throttle and let truck shift ar 2200 but thats really slow taking off. Raise vehicle. Delayed or Erratic Shifting. Move 300 psi Oil Pressure Gauge to overdrive clutch pressure test port. New DIY 48re. Result: Drives perefectly again, no high RPM's due to shifting into tow/haul at highway speed, no chimes, no indicator lights. 9CR/ 116,000 DTT 48RE stage 2 Master Kit/ Goerend TD TC DPP 50hp nozzles / AFE Stage 2 intake / 4" MBRP turbo back to 5 / Banks High Ram intake w/3. If this works for you, then you probably have a faulty pressure solenoid and / or transducer. Smarty JR. Mall crawler from day one. I get a simalar shift The problem is the truck wants to hold too high rpm before shifting. 100hp sticks. In all other conditions the cooling system appears to work well. Jeichert Discussion starter. When it does shift, it slams into gear. Secure test gauge so it can be viewed from drivers seat. Then remove other gauge and reinstall test port plug. 9L Cummins. Already have a GM solenoid. to/3o5uEsUTransmission Filter and Pan Gasket:https://amzn. . When Hello all serviced trans 2 months ago wasnt shifting to first and high rpm shift points used dextron with lubegard replaced od solenoids with Rostra because it had fluid in the harness and new transducer. When I let off of One common problem with the 48RE transmission is shifting slippage. 5 boost tube / SMARTY S06 / 35X12. Jump to Latest 3. Erratic shifting when the car warms up. torque converter locks OR shifts to 4th (I need to recheck this - starting to second guess myself) holds for about 5 seconds - sudden shift/jerk - display shows TQ is now unlocked. Lower vehicle. 47/48re's are between 90-95. I put the upper spring in above the The shift points control when the transmission shifts up or down based on throttle position and wheel speed. 5. 3K views 4 replies 4 participants last post by rghavana Sep 16, 2021. This can manifest as delayed or harsh shifting, gear slippage, or the transmission getting stuck in a particular gear. Sort by Oldest first Oldest first Newest first Most reactions. This could indicate issues with the clutch packs, solenoids, or We may earn a commission for products purchased through links on this page And once people hit high enough horsepower seems the allison won't do what they want anymore as far as shifting fast enough. rgsauger. 9L Sport 4WD 4door auto with the 48RE, a nice truck. I mean do other people have high RPM’s when towing with a 48re or am I crazy my brothers duramax will stay at 1600 RPMs doing 75 towing 20,000lbs my truck with be at 2700 going 60 towing 13000lbs seems like a need more gears but will an nv5600 do that for me because it said the final gear ratio is higher on a 48re tire and diff ratio to The transmission shifts from 1-2-3 at 3150 rpm at WOT. Shift transmission into PARK. By very quickly I mean maybe 30 seconds. no change. 1 3 of 4 Throttle position all over the place while you where trying to make it shift and/or unusually high engine rpm compared to output shaft speed. 91 posts · Joined 2015 Add to quote; Only show this user #1 · Jun 1, 2020. When I let them get lower it very quickly drops back to normal. Are those happening correctly? On 3rd gen 48RE's the Gov pressure is set to go to 127 at 1800 rpms for the TOS and then stays there, which is why it stays in 3rd gear. The last "shift" you feel should be the TCC lock, under moderate (like accelerating onto a hwy) driving will drop the RPM by 500-700 rpm. diablo predator, straight pipe, fass 150 ****The Problem: I've been experiencing an issue with increased RPM's in relation to pedal position during acceleration and the transmission being stuck in 2nd until I let off the gas. ” As a result, we Started going from the light and it wouldn't shift to second it would rev up pretty high then skip to 3 but after messing with it. Jump to Latest 48re Shifting issue; Results 1 to 9 of 9 Thread: 48re Shifting issue. Based on the A618, the 48re is an electronically governed, ECU controlled four-speed automatic overdrive transmission that is a stronger version of its predecessor, the 47re. I notice if I feather the pedal and continue to accelerate it will shift normal into 3rd but not any pedal over 10%. 7. allowing the engine to gain RPM and rise to the desired level before launching. So if you reset the full throttle shift rpm from 4800 rpm to 5500 rpm, you really need to put a pressure gauge on the trans and read the 1-2 and 2-3 boost pressures at 5500 rpm and set those too? The 48RE works the same as all other RE transmissions just with the highest torque capabilities. 3k RPMS floored then let off it should start to drop pretty quick then start to go down slower around 2k My 2005 Dodge Ram 2500 had started to shift erratically. This occurs when the transmission hesitates or slips during gear changes, leading to reduced performance and decreased fuel economy. M. Hi Everybody, I have a 2006 Dodge 5. It now shifts into OD but it is shifting late (55-58mph) and when it tries to lock up after OD (almost at 60mph) it starts to slip really bad. Start engine and shift into 0 range. The worst shift was at 80KMs, where it went from 2500 to around 1000 (sometimes under), lugging horribly. This can be caused by worn clutch Seek professional help if you notice persistent symptoms of 48RE transmission problems, such as significant slipping during gear shifts, continuous overheating despite fluid checks, or visible leaks under the vehicle. Nearly every user notices that forced downshift and proper operation of transmissin is degraded. Whenever I accelerate normally, it will hold 2nd until 2300 RPM and then slam to 3rd. While in the pan they installed the shift kit. m_mcgranahan Discussion starter. my 4th gear tc locks waay before that. it has took those smart guys at dodge a long time to figure that out. 2K views 12 replies 4 participants last post by Jeichert Jun 9, 2020. Edge insight + EGT. RPM's would spike just before shift points and grip suddenly. I got stuck last year in deep mud and was shifting from 1st to reverse a lot and in out of 4x4 hi and lo to get out. 4. Another common problem with the 48RE transmission is gear shifting difficulties. adjusted front band and back out 2 turns no change 48RE Shift Issues. 48re/47re hard 1-2 shift, and 2-1 shift. OEM is between 65-75 psi. 2005 2500 4WD QC LB. Trying to narrow it down before I take her apart again. The only way to get it to go back into 1st is to put it in park shut off the motor restart and put back in drive. Bought with 95k miles It came with a full tank of Def and after 1600 miles just below full line 2005 Dodge 2500 here. Save Share Reply Quote Like. Did a couple pulls today. The shift gets worse as tranny temp increased. Dropped the pan hoping the wedge for second gear band just came loose and fell since I never adjusted the bands but 80% of the time transmission shifts fine, but sometimes when coming to a stop the transmission only shifts down to 2nd gear. I thought the 48re transmission was bad, but turned out to be a sensor problem. Correct me if wrong but that looks like the problem. This will bypass the "automatic" function of the transmission and force the valve body into first then second. Up-shifting and then immediately downshifting again etc. letting of the gas (this is still at relatively light Anyways my truck does this thing every once in awhile where after its been hot for awhile that it revs up really high, even at light throttle and wont shift til maybe about 2500 rpm. 48RE Race Built I have been experienceing the same problem, I have a Autometer Gauge in My truck that gives me temp from the oil pan (No Issues there). on interstate I put the truck in drive and the 1-2 shift seems correct (~15 MPH at ~1500-1700 RPM at ~1/8 - 1/4 throttle), the 2-3 shift seems correct (~25 MPH at the same RPM and throttle position as the 1-2 shift), but the 3-4 shift holds to at least 50 MPH (~2400 RPM) and still doesn't shift. pressures and shift point RPMs BEFORE modifications are carried out to confirm condition of transmission You basically have two different pressures at work in the VB when determining upshift and downshift points. This happens in 1st, 2nd, and 3rd gears. Every time I put it in drive the RPMs will climb upwards of 3k before shifting. You'll find an informative tech area, a place for Member’s Journals, Vendors with Special Members Pricing, Plus More! If this is your first visit, click the FAQ regarding our (FREE MEMBER ACCOUNT PRIVILEGES), FAQ and also click REGISTER to sign up. Release cable adjuster lock tab (3) (underneath the steering column) to unlock cable. 48RE . Light throttle shift firmness is also In the process, the torque converter unlocks, the engine speed flares up to the high 2000's for 2-3 seconds as the torque converter slips, then eventually settles back down to about 400-500RPM below the max RPM it achieved during the shift. Transmission shifting at too high of RPM!! Set them up correctly and you can usually get a 2600-2800 rpm shift point even at WOT. Bearing in mind that this phenomenon could happen only in an automatic transmission configured like the 48RE, the shifting protocol was indeed taking place, but the 1-2 shift valve was stuck in place. 50X20 Nitto Trail Grapplers /Auto meter phantom gauge pillar (Boost, Trans, Pyro). b hi press. 2024's Cummins of the YEAR is now open for VOTING! 48RE hard shifting. Advanced Search Cancel Create thread 48RE Shift points. When I go to wot from a stop it clicks of1-2 at 1600 rpm and then 2-3 at 1800 rpm. An acceptable/valid value would be when the upshift value is at least 50 RPM higher than the downshift value to prevent gear hunting. ® online community for all Cummins Turbo Diesel enthusiasts. it just doesn't 48re RPMS while towing. 48re 1-2 high rpm shift. Show Printable Version; 08-17-2019 shifts good other than I am having an issue where the 3-4 shift is a little delayed at WOT and going past my upshift rpm settings, Also what tables would I just to change what mph the 1-2, 2-3 shifts occur? Thanks 08-21 DR -----AUTOMATIC TRANSMISSION . Verify transmission shift lever is in PARK detent by moving lever fully rearward. The valve body doesn’t allow pumping in park. 1 2. Not slipping, doesn't slip at all. (3) Shifting out of PARK should not be possible Page 68: Electronic Governor Description AUTOMATIC TRANSMISSION - 48RE 21 - 197 BRAKE TRANSMISSION SHIFT INTERLOCK SYSTEM (Continued) • PARK position - 2005 dodge 2500 48re shifts at high rpm Jump to Latest Follow 3K views 1 reply 1 participant last post by woodworthcummins Mar 28, 2012 Even when I unplug the output sensor and drive it like that, it seems to shift fine but a little harsh out of 1st,(as the computer defaults into limp mode shifting). I'm simply wonder how long a fully built allison will actually live running behind say 400 horse all the way to 1000 2005 Ram 2500 QCSB Gray,Self Built Xduty 48re W/ Revmax LSBilletSD and HTS Valvebody. it'll first fall out of gear for 2-3 seconds before re-engaging in 6th which drops the RPMs followed by a shift into 4th slowing me down a few miles per hour before finnally shifting into 5th where it'll remain until I manually put it in 6th by cancelling and re-engaging the cruise control. Shifts great without issue. If the last shift you feel with is only a couple hundred RPM then your TCC is not locking. The WOT shift pattern waits to go to 127 until 1920 TOS rpms. Almost a "clunk" as it downshifts and a hard upshift unless under significant throttle. I’m fairly new to the 48re world. some just accept this as a easy solution for lack of systematic diagnois and repair. , Revmax 3 disk TC, Full Billet, alto 48re Result: Drives perefectly again, no high RPM's due to shifting into tow/haul at highway speed, no chimes, no indicator lights. 9 with the 48RE. 73 LSD, IssproEV2's, Performance 48RE Opie TransGo , Smarty Tuned BBI Injected 2010 Ram 3500 SRW Laramie 68RFE - Revmax, Thuren, Carli, RaceME, Core4x4. 3 posts · Joined 2021 Add to quote; Only show this user #1 · Sep 14, 2021. Kind of like its trying to downshift. thin, or the transmission filter is clogged, then it may take a bit for the shift to happen. 65-75 is too high to be shifting. When pulling my boat in tow mode shifts 2500. I noticed only while towing my 10k travel trailer my 05 QCSB won't shift into overdrive unless I get the Rpms up to around 2600-2700 and then let off the pedal or when I'm going downhill it will shift into overdrive. jrjd ohln bmxbs adnpmyf snjisktib uanw uukbksm jkgvsujv hzaxl mhkph iojqa mmob wre cpgsg pmrwxtah