Torque Converter Won\'t Lock Up

August 31, 2021 Post a Comment

I have been getting the p1870 code whenever i was on the highway and the torque converter wouldnt lock up and then it would be. Applies to traditional step geared automatic transmissions.

What Is A Lockup Torque Converter Gearstar Performance

Could be a bad seal in the TC that just wont engage the clutch when warm or a.

Torque converter won\'t lock up. At approximately 35 mph connect the other end of the test light or jumper wire to terminal F at the ALDL. The torque converter is a part of the transmission and you will notice that the engine will hesitate and be underpowered when it is locked up. Its in a 1999 1500 with the 43l and the 4L60E 4WD.

They flushed the 60 cooler I put in it a few months ago which the company said would be fine but my problem is the torque converter wont go into lockup. The transmission is shifting just. After playing around a little more lockup definitely seems dependent on the transmission fluid temperature.

Torque Converter wont lock-up on highway. Torque converter wont lock up. I have an 01 silverado 1500 4x4.

Whether the TC locks up or not follow the troubleshooting tree to the next step cooler line surge test. Mar 11 2014 1136am. If there is a problem that doesnt allow the torque converter to lock up would the PCM attempt to command it on or off and have a voltage feedback problem.

So my torque converter will lock and unlock just fine when driving accelerating coasting and accelerating it works flawless. As far as the gear selector not working it could be the cluster itself. Jump to Latest Follow 1 - 5 of 5 Posts.

I bought the truck with 78000 miles on it and was never told it had the transmission replaced. The Working Of Lock Up Torque Converters A lock up clutch is engaged as soon as the engine and the transmission run at the same speed approximately. This can cause various symptoms such as slipping overheating and rough acceleration.

Most Torque Converters today also use a friction clutch to lock up the converter at higher speeds to create more fuel efficiency and less slip. Either can fail. The valve in the pump may be stuck.

The speed at which a lockup mechanism automatically activates is about 64 kph. This will cause the converter clutch to lock up with the shift to 2nd gear if the converter lock up is operating correctly. For transmission to lockup however some requirements follow.

I have a question for you guys I just got my 94 ram 360 back on the road after sitting for over 3 years the issue im having is my torque converter isnt wanting to lock up now I drove it for an hour and a half last weekend and it would lock up occasionally but not everytime I drove it an hour. Running with a scan tool down the road it says the pcm is telling the torque converter to lock up. However if you believe that the torque converter is locked up here are some troubleshooting tips to make sure.

In this video I explain what to look for when your torque converter clutch is locked up. I am starting to get irritated with not having torque converter lock-up on the highway only and I believe TC shudder is the cause of it. If I hit the gas when slowing down it will unlock and stay unlocked.

I bet it failed and it thinks it is too cold so it will NOT lock until temps go up. Im going about 2k rpm in OD at about 55-60. There can be many different causes for certain engine problems.

The torque converter clutch solenoid is a common part that fails within the automatic transmission. Joined Feb 9 2009 4 Posts. I have done a full fluid flush and filter change.

Discussion Starter 1 Feb 16 2009. When I give it gas the rpms go up but the truck doesnt move much faster like its slipping. I have a 96 f350 psd.

New to the forums here. To me the p1860 code seemed to point to an electrical circuit problem but again I am not familiar enough with this system to know for sure. Your truck has a temp sensor for the trans fluid.

Installing a check ball in the end of the solenoid then re-install the lup solenoid back into the pump. The thing about fluid temp it is thicker when cooler and thins out as it heats. The solenoid valve controls the fluid pressure of the hydraulic transmission which enters the lock-up clutch.

When Im cruising down the road at whatever speed in whatever gearmy torque converter doesnt seem to be locking up. The torque converter should Lock-up. Un plug it and put a 1k ohm resistor on it and see it it now locks.

It engages fine when I am on back-roads. If I remember right it is in the hot line in the cooler circuit. You wont notice the lockup until wot in the upper end of 2nd gear or tow haul mode is on then you will feel it just accelerating normal above like 25mph or so dont remember the actual number.

However when Im cruising along and the TC locks up and then I come to a stop the converter tries to stay locked until it stalls and then unlocks. If the lockup clutch never engages or stays locked up until it stalls a braking vehicle. 4l60e torque converter wont lock up.

They are real POS. Discussion Starter 1 Nov 27 2004. The point of these comments is that you have to know the control systems strategy for converter clutch operation or you wont know whether the applications and releases are working the way theyre supposed to.

53l with the infamous 4l60e. How to Test a Torque Converter.

Torque Converter Functions Parts Working Principles And Types Ingenieria Y Mecanica Automotriz