Cummins torque converter lock up. net '95 2500 CC auto 4X4, 3.

Cummins torque converter lock up. 9L Cummins, 48re Automatic Transmission, Edge Juice w/ Attitude+Hot Unlock, S&B Intake, 4" Straight Pipe, BD Diesel Exhaust Brake, Applied Performance Turbo, 4" Lift Front, 2" Rear, 5100's Around Another great feature of this converter is its 3-pass design, allowing for individual control of the converter circuit. Its primary function is to eliminate the energy losses that occur within the torque converter during normal operation, thereby improving fuel efficiency. The lock up or "mystery" switch is just a switch to ground the tq circuit to achive lock up. I was towing my boat up a hill the other day and shifted my truck out of over drive. is it a wire grounding out on the lockup solenoid? 2006 2500 stock tranny Nov 29, 2016 · 2. Jan 16, 2024 · 3. Remove valve body and replace solenoid. 9l cummins with a freshly built 47RE transmission and brand new Suncoast triple disk torque converter. In tow haul at 45-50 mph it jumps between 3rd locked and 4th locked with or without the cruise on. Be cautious with this DIY. Feb 7, 2023 · I get a slight bump (it feels like a strong shift) when the converter locks in 3rd if I am driving and doing more than putting around. There is only maybe a 2% hysteresis here, and the converter will unlock (thanks Chrysler). VERY low, in fact. 110" and get a little more life out of it. Jun 9, 2021 · Torque Converter Lockup. My torque converter will go in and out of lock up. Shifting and lockup are two different functions and conditions. Truck was fine stayed out of overdrive for about 5 miles several hills to climb. the torque converter will lock up then kick out all the time. Jun 27, 2024 · So, pulling my dump trailer weighing about 14k I don’t have any acceleration unless I am in lockup. Not sure about the torque converter though. Is this normal for a tuned 68RFE, or should I have the tuner remove the 3rd gear lockup? About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Feb 1, 2008 · Torque converter lock up issue. Jan 7, 2008 · SOLD 2006 650+ hp on #2 750+ hp w/ 1991. We fixed our torque converter lock up problem for $30! On this video we take through the symptoms of what we were dealing with (torque converter cycling in and out on lock up), the Dec 14, 2016 · If I set the cruise at say 35 mph and then accelerate up to 45-50 mph, it will not cycle the torque converter. Oct 6, 2021 · I had two converters go bad . Once those converters start to slip they're usually toast. Trans fluid is full and clean. 4th OD is a gear, third is a gear, lockup is the locking of the torque convertor after shifting in a particular gear. While cruising at around 60km/h, in 3rd gear, my TPS is hovering right around the area where lockup is allowed (12% ish). Is the above Apr 7, 2017 · My guess at this point would be a bad converter. All my experience with blown torque converters usually cause other symptoms though so not sure what to think there. their computer that the tps is putting out a low reading still. If you do not have a transmission that is built to handle some abuse, this modification can be damaging to you tranny. 25 . Stoped at a stop sign turned left a my transmission started slipping like it was trying to take off Jan 30, 2018 · 2012 Ram 2500 Laramie CCLB 6. This is especially obvious if I set the cruise. That is where your discontent is coming from. I see you mention switch to a 33 ohm resistor and then to ground. Jan 3, 2010 · 97 4x4 over drive switch help I have tryed to get a answer to my question it is similar to the one you have but no one has responded. was wondering if anyone knows what Sep 28, 2020 · If the lock up switch works I’ll go ahead and do that to aid it. The converter locking feels harsher, and so does the Gear Vendors overdrive when it shifts. What is the lowest gear that the torque converter locks? 2. Is "locking" based on RPM, throttle, and/or speed? 3. So nice to have everything working correctly again. Between 30 and 40mph if I give my truck around 10-40% throttle it will start jerking and slipping as the torque converter keeps locking and unlocking. Thanks for the help guys. :thumbsup: Liteweight OEM torque converters are typically made with stamped metal components and the stall speeds are not matched to the motor's torque curves. I’ve got a 2001 dodge 2500 5. Chrysler, and all the manufacurers were playing with vane counts, stator design, stall speeds, torque ratios etc since the first converter came out 70 years ago. Nov 12, 2006 · Well every one, I finally did the torque converter lock-up switch per Nutty Mopars instructions and it works:woot:. Maybe. 5 with a 48re that i just had rebuilt at a local trans shop and they put a mystery Suncoast valvebody in it and now my torque converter does not lock up at all. I did a bunch of tests and decided to chang the ecm. And I've even got a low-stall converter. Jun 28, 2006 · Torque converters in the newer trucks have 2 stages: (1) a fluid coupling occurs first when you are starting, accelerating or pulling up a big hill, (2) when you are cruising at a constant speed the lock up portion of the converter is engaged and 100% of each rpm is transferred through the converter, just like a standard clutch. It lets you lock your torque converter in any forward gear. Just bought it and it has a manual torque converter lockup and I go to engage the torque converter in 3rd gear and it engages for about 10 secs and kicks off have no clue why it's doing this. the check engine light is not on and the scan tool is saying the ecm is commanding Oct 25, 2012 · I had a lockup torque converter switch on two older trucks that I had. 5R110 tuning is only available for 6. The pull these 5. This low stall converter has lock-up and the strength to hold up to the performance of your Cummins diesel engine. Converter clutch solenoid failure. This heavy duty Torque Converter is what you need to gain the performance you desire from your Cummins swap and your GM 4L80E transmission. :confused013: Engine: Mahle "Marine" Pistons, Balanced Rotating Assembly, ECD Cam, O-Ringed Block, Ported/O-Ringed Head, 3 Angle Valve Job, ATI SuperDamper Dec 17, 2011 · Contrary to what was said here, there have not been any major changes to converter design over the last 18 yrs other than the lock up. Jul 13, 2009 · 2018 pulling season official sponsor- FLEECE Performance 2008 2500 MC 6. Feb 20, 2012 · I have a bit of an idea how a converter works but dont understand how lock up works or how a lock up programer works or how you would set one to how you like it. If looking to know why FCA engineers chose the particular lockup strategy they settled with on these transmissions, better to find and ask the engineers that Jan 21, 2009 · The lockup switch was invented so that an exhaust brake would work because when the fuel pedal is in idle position or the brake pedal is pushed the powertrain control module (PCM) will unlock the torque converter clutch (TCC). Everyone goes for the band-aid route because no one can or is either willing to spend the time to diagnose the problem. Both where the lock up part. May 26, 2012 · Think about it. they are telling me that the converter should not stay locked under acceleration over 45mph ish. But I would like to understand better when and when not to have the torque converter lock up engaged. When I am at a stand still I flip the swith and accelerate the truck, the TC locks up and the transmission will shift through the gears while babying the throttle. 9's have when it's not being wasted with slip & heat in the torque converter is outstanding. Jun 22, 2021 · It WAS low on fluid. 0 Reservoir Shocks, HC Control Arms, Track Bar, King Steering Stabilizer and Torsion Sway Bar. At 65% efficiency the factory Dodge diesel torque converter is really sloppy. Jul 3, 2017 · Torque converter lockup. shut the truck off, and started it back up. You cannot use your existing A-727 torque converter for this swap. 5. Sep 28, 2023 · Torque converter lock-up is a technological feature designed to address a specific challenge inherent in the operation of a traditional torque converter. 9 and I can't find anyone that sells an electronic lock up kit. Oct 30, 2020 · So I've got a 05 dodge ram 2500 Cummins. 1. I have a -98 2500 5,9 diesel 24v(imported from the US to Norway in 2004) who has the same problem. But (at low engine torque) there's no way the converter should give that much slip. 5 4x4 2500 auto flatbed Dodge regular cab, DIY Air Intake and Tuned up Pump :devil045: Feb 13, 2017 · Torque converter slippage is important during acceleration, but it becomes a liability once the vehicle reaches cruising speed. Fix the damn thing right. If the converter ISN'T locking up then yes it could be many things. Mar 1, 2017 · It's amazing how the truck just GOES when you make it lock up instead of driving like the driveshaft was a rubber band. It may be possible to drill out the boost valve cover plate to say . A lock up clutch is engaged as soon Apr 1, 2010 · lock-up vibration went to a different dealership this morning this one has a top notch cummins tech. They feature our patented square tab clutch design, for reliability during lock-up. TORQUE CONVERTER LOCKS UP IN SECOND AND/OR THIRD GEAR (A500) 1. When driving normal with the switch on, it would shift OK, and then at about 45-50mph, the TC would lock up like normal and at about 35mph, let off the throttle, and the engine would go to idle when the TC would unlock. You can get aftermarket controllers to adjust the speed at which you get lock up to any speed from 18mph up. went for a drive he could easily feel the vibration on lock-up got back to dealership performed a cylinder performance test at idle all cylinders showed 96 to 100% put truck up on fast idle at 1000rpm and no. Seems at faster speeds (above 60-65) it is not so touchy. Lesson learned if your filter clogs up suddenly and you loose lockup it could be that your torque converter s**t the bed. May 25, 2010 · The six-spline yoke on your existing A-727 driveshaft is the same for both units, although your existing driveshaft will have to be shortened about 3-1/2 inches to compensate for the longer tail shaft on the A-518. Billet cover; Oversized carbon fiber clutch Oct 12, 2012 · hey everybody i have a 04. 4. May 26, 2018 · If i leave 1st gear under 1700 rpms, and i go into 2nd gear under 1700, i am pretty sure i feel the torque converter lockup- the RPMS raise about 200 and it feels like the truck is being pushed from behind (this is also annoying because the truck feels weak before the TC lockup- it surges after lockup and feels strong, like damn just shift Oct 6, 2014 · 2005 2500 4x4 BMS50 Hamilton cam 188-220-109. Jump to Latest Owned my 2009 Dodge Ram 2500 Mega Cab Cummins diesel 2 weeks and converter locked up and stalled engine. Nov 14, 2013 · Originally founded for owners and enthusiasts of Cummins powered Dodge pickups, the Cummins Forum has expanded to include ALL Cummins Engine applications! Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more! Sep 14, 2010 · 2000 Ram 2500 A/T with light mods, no tranny mods. the torque converter locked up and unlocked repeatedly between speeds 30-50. Company's take advantage of you and try and sell you a noise isolator for $25 to fix a TC hunting problem. Feb 24, 2013 · Originally founded for owners and enthusiasts of Cummins powered Dodge pickups, the Cummins Forum has expanded to include ALL Cummins Engine applications! Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more! Jan 13, 2010 · Best way to check the converter lockup is to get up to around 60mph, level off speed, keep steady pressure of go pedal and slightly depress brake until you start to feel brakes just a little. The purpose of the lockup clutch is to directly connect the engine and the transmission once slippage is no longer needed. Oct 15, 2020 · A: DCS maintains the stock Ford TCM/PCM and harness, and with the use of HP Tuners we modify 5R110 shift points and torque converter lock-up to perform behind the Cummins engine. 35x12. Questions: 1. 320" CPP 63/68/12 turbo Goerend Transmission Torque Converter valve body flex plate billet input deep pan Edge CTS Insight Smarty S06 Spyntec free spin flex-a-lite electric fan Oct 20, 2010 · it only happens every now and again ill be driving, stop at a light and the truck will lug down to 400rpms converter is locked up when i shift from drive to neutral it will rev up to 2000rpms but after i dog the hell out of it for a few days it will go back to normal. Jasper trans. took it for a ride and the torque converter would lock and unlock frequently again, and then it May 17, 2023 · Some torque converter clutches have a plate that is pushed back against the front/engine side of the torque converter. Jul 27, 2009 · 2. 9 cummins, 2wd automatic 47re. Upon the test drive after the transmission rebuild,the torque converter stays in lock-up. It happens in 3rd around 30mph. I did get a billet input shaft but really, it doesn't feel that harsh when it shifts locked. Right now the problem isn't there, but thats a long story. Mar 16, 2011 · Now, with all the good parts in it, I have increased the line pressure to 150 psi. 7L,6sp auto,3. I wouldn't be without my Lockup switch especially towing. KDP tab fix info and fuel system article jgeorge1@suddenlink. i tried replacing the tps and it still did it. 310"/. Feb 16, 2015 · 2006 Dodge Ram 2500 MegaCab, 5. How does a lock up torque converter work. 7,4x4, Fully Deleted, BD Air Horn, EFI Live w/ Trans Tune, AFE DFS780 Lift Pump, Injen Evo CAI, Riding on 37x12. Sep 5, 2022 · Last winter I had to let it idle after cold start for 30 to 45 minutes before I would not have this issue. The shifting pattern is 1st 2nd 3rd than lock up and then 4th. Aftermarket lockup switch installed and turned on. Get Torque Concverter to lock up, or use lowest gear (1st) to minimize slip in torque converter. Mar 19, 2009 · perhaps a faulty/dirty torque converter lock up solenoid. I never used it. Dec 22, 2015 · Anyway, the transmission shifts just fine. net '95 2500 CC auto 4X4, 3. Jul 14, 2012 · 1999 dodge ram 2500 4x4 (Rev Maxx stage 4 low stall Torque converter Billet input Shaft Valve Body and other goodies) BD noise isolator, Raptor 150 all 1/2" lines , straight pipe, recon smoked cab lights, Edge juice with Attitude CTS Hot Unlock, ISSPRO fuel boost Pyro Gauges,CPP 7x. 6 injector dropped down to 84% while the other 5 stayed at 96 to100% . Jan 26, 2016 · put everything back together and took it for a ride. This only happens in OD obviously. Jun 12, 2012 · If it IS locking up but slipping it's NOT the lu solinoid. It keeps the torque convertor in clutch lockup. Just orange with black to ground. But, once the Torque Converter locks-up it seems extremely touchy about kicking-out and in at speeds from about 35 to 55, even on the level. then it stopped locking up, tried flipping the switch on and off, nothing. You'll also need the torque converter, which is of a lockup design. Jan 15, 2023 · So I’m at a loss here. The weird torque converter issue surfaced after I changed the thermostatic valve. Mar 6, 2020 · SUCCESS! I finally replaced the converter with a low-stall unit from DPC and everything is back to better than normal. Feb 13, 2009 · The factory setting is any where between 35-45 depending on what gears you have. May 16, 2022 · It has a torque converter lock-up switch that was on it when I bought it. Feb 17, 2009 · Actually, a stock 47RH will lock up in manual 2, but won't hold the lock if you lift regardless if the lock up wire is grounded or not. ATS TripleLok® and Five-Star® torque converters completely eliminate these weaknesses. Oem just went into lock up and never came out . Feb 9, 2014 · 5. It cost me several converters and a couple of complete transmissions. Feb 9, 2012 · The main problem started when I bought a new (to me) 22ft enclosed trailer and was towing it empty back home last night. The TCC can be forced to stay locked by grounding the orange/black wire from the PCM pin 54 to the lockup solenoid. 50 Ridge Grapplers on Black Rhino 20"Sierra's, Thuren 3" Coils, Rear Shackles, Fox 2. I wired the lock up switch already hopefully I can drive it today. Hi there! Old thread by now, but anyways! Sounds wery familiar to me. I was previously checking the fluid level inside the garage without good glasses. When the torque converter is turning 35% of your power into waste heat you can not expect to accelerate briskly unless you have huge hp. I noticed when it locked the rpm hardly changed at all. I never had any resister. If someone could explain it to me in the simplest way possable it would realy help me, im not sure if i want to get a lock up programer yet or not seeing as i have no idea how it is Dec 28, 2008 · Very simple, it's a switch that allows you to manually control your torque converter lock-up solenoid. 12 injectors, New industrial injection vp44 arty018:,ARP head studs waiting to put in. Converter clutch solenoid, relay, or wiring problem. Jan 28, 2010 · hey i have a 97 dodge 2500 4x4 12 valve automatic and its haveing some problems. The engine torque will fall way off at speeds of ~3000+ RPM, so if the converter is allowing the engine speed to go that high, that explains why you get no acceleration. It features: Full size with lock-up. It worked to keep the torque converter locked up but if you forgot to unlock it, bam bam lurch lurch, kill engine and torque converter. Dec 13, 2021 · There are tons of articles to be found as to the purpose of why transmissions lock up the torque converter that cover a range of topics like heat and fuel economy to name a couple. It most likely is the torque converter. This is can be pulse-width modulated for a softer hit to the tires if desired. 54, EGT, boost, fuel pressure, trans temp guages, PacBrake, TST #5, DTT VB, DTT triple disk TC, DTT billet flex plate Nov 30, 2013 · I understand how the torque converter works, essentially a fan based system moving hydraulics to transmit power to the wheels. 5x18 toyo open country RT . . I could tell cause that single billet converter, when lock up happened the rpm would drop 500 to 600 rpm. The torque converter started locking up at around 20 miles an hour and continued to lock up till I got to 55. I now have a 2006 5. Read up on our Ford TCM tuning for more detail. I ended up adding an ADDITIONAL seven quarts! I'm Surprised that I didn't kill this poor transmission. i call BS cuz it used to. On nearly flat ground/slight up-hill grade, in tow mode, the trans was initially (I think) in 3rd gear with the torque converter unlocked (2500 rpm at about 60 mph). A forum community dedicated to all things Cummins Diesel Apr 27, 2017 · Was BAD. 73, Laramie 925hp & 1900 Ft lbs @ the rear wheels! Fleece S475 turbo, exergy 10mm CP3 twin kit with stock cp3. if this a temp sensor issue or a torque converter issue. The lock-up torque converter is a feature found in many modern vehicles equipped with automatic transmissions. 4L diesel trucks. Yes , I do have a switch that will manually lock up the TC (only in 3rd and 4th). When you depress brake pedal enough to make brake lights come on, then if converter is locked, it will then unlock and you will see a jump in RPM's. Lock, unlock, lock, unlock. Turn off. What is the lowest speed range towing 16,000# that I could expect keep the torque converter locked. And I also get a code that reads p2769 which is a low torque converter circuit. Really, some poor joe shmo spends hours on trying to fix a simple problem that occurs often. They all stop at 2005 from what companies are telling me, and my truck just blows right through the converter until I get at high speeds. He said all the clutches are engaged so the problem is the torque converter. So, if I start the truck, put it in drive and turn the switch on, the truck should (theoretically) stall, in much the same way if I dumped the clutch in a manual transmission - correct? 2a. Tags 2nd gear lockup 47re lockup switch trans cooling transmission heat problem. Other time the lock up just all the sudden started to slip. That's why virtually all modern torque converters use a lock-up clutch. Wide Open Throttle blasts with the converter lockup is an absolute blast now. so when driving Mar 15, 2018 · The truck has a lockup switch, which I generally don't use. But yea if the switch doesn’t work then I’m gonna assume it’s something much major. When this happens the torque converter is in a mechanical lockup meaning the engine and transmission are mechanically coupled together. i then took it to a mechanic and they thought the same thing and replaced it again but still didnt fix it. With the switch on, the torque converter would immediately lock up regardless of the gear it is in. Feb 28, 2017 · A lockup switch does not put it in any gear 4th or otherwise. HARSH 1-2, 2-3, OR 3-2 SHIFTS 1. This is much more effective than a simple two-pass lock-up system where you do not have unique control of how the converter lock-up is brought in. Jul 16, 2016 · 99 auto 24v stage two rebuild kit from dtt 150 nozzles torque converter keeps locking and unlocking while I'm driving any suggestions on why it keeps doing it? Sometimes it will stay locked up sometimes it will lock up and then unlocks will do it while I'm driving please help thanks for any information!! Oct 13, 2013 · The torque converter is the only really sloppy part in any automatic. To put it simply, when lock-up is engaged, it creates a direct mechanical link between the engine and the transmission, bypassing the fluid coupling aspect temporarily. Aug 10, 2024 · I have a 2000 5. 0L and 6. Speaking to a trans builder he thinks the clutches are good as the truck pulls hard in OD when in lockup. xih kwkmjfyp efqysk ocxwdti nbrdu padw bhqf sehcm logs tysgf