4l60e Torque Converter Won\'t Lock Up

I watched the data screen and it says its locked. There is service bulletin for 1996 models to where you add a ground wire to the ecm and without this update.

Torque Converter Not Locking Up Ls1tech Camaro And Firebird Forum Discussion

I put a snap on scan gauge on and there are no codes.

4l60e torque converter won\'t lock up. It acts as if it is hunting between gears. Below is a list of some of the most common issues with the 4L60E. There is a solenoid in your GM converter that causes the the torque convertor clutch TCC to engage and disengage.

No problem with engine reaching normal operating temp gage reads the same as usual. As the title states the torque converter bounces in and out of lock up. Im sure its probably an electrical problem.

Torque Converter wont lock-up on highway. A resistance test for the selnoid is. Whether the TC locks up or not follow the troubleshooting tree to the next step cooler line surge test.

The main symptom of a TCC solenoid failure is the converter is not locking up. Tranny is all stock just had its normal filter-fluid changes. Torque Converter 2400-2800 Stall 4L60657075-E Late LS V-8 trans.

Make sure you arent confusing the shutter of a poor running engine with the vibration of a transmission with a loose converter. A faulty torque converter clutch can also cause other symptoms such as slipping and rough acceleration. I pulled the fuse and that doesnt help.

To get to it you have to pull the pan. Hoping to get some help as I am stumped. However torque converter lock-up isnt a very serious issue.

Stall speeds from 2500 rpm to 5500 Until engine temps reach a certain point the TCC solenoid will not allow for lock up. That said if you notice a further shift while driving with the last gear it could be that your torque converter just locked up. When your 4l60es TCC solenoid begins to fail there are a number of obvious signs.

Any ideas help is appreciated. The servo is on the front passenger side of the transmission. - - - Updated - - -.

About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features. Brake pedal switches improperly adjusted always on TCC solenoid failed TCC clutch worn out must remove transmission and replace TC. Power Raptor Lock-up torque converter 700r4 2004r.

The torque converter is locked up. I have done a full fluid flush and filter change. My SUVs torque converter goes in and out of lock up when going a steady cruising speed.

I am Assuming that you have a 4L60e most of whats below are part s for pre 1998 4l60e Sonnax makes an overdrive servo that will hold more and cause less slippageif the ecm sees too much slippage it will do some wierd stuff also mostly code 1870 will pop up on check engine light. Normally it would lock above 75mph under all conditions unless it was floored and it was in 3rd. When the converter is not locking up you will notice the engines RPMs staying higher under load at highway speeds.

Discussion Starter 1 Jun 30 2007. I rebuilt my 4L60E in my 1994 Chevy S10 along with buying a remanufactured OEM torque converter. If the torque converter is locked in the drive or idling gear and does not release the transmission you most likely have a problem with the converter clutch.

Any suggestions where to look first. I bought a new lock up solenoid and it still will not release. I have an 01 silverado 1500 4x4.

At approximately 35 mph connect the other end of the test light or jumper wire to terminal F at the ALDL. Guys - the torque convertor in my 92 L05 wagon wont lock up. When its locked up your transmission should feel like a normal stick shift would you can just tell the transmission is locked to the engine RPM no torque converter slushslip when climbing hills accelerating slowly etc.

Last 500mi I have noticed the torque converter is having some trouble locking up in overdrive. However the transmission is in top gear. Another symptom of a failed TCC solenoid is a fault code.

VehicleEngine Search VehicleEngine Search MakeModel Search. For example if you own a 4-gear automatic when your convert locks up it feels like your transmission moved to a 5 th gear or extra overdrive. The valvebody doesnt have to come off.

That is either the torque converter or harmonic balancer. The torque converter should Lock-up. Here is my 4L60E locking and unlocking at the commanded mph.

Check the brake switch that will keep it from locking also. 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. Truck is a 97 with 173K miles on it.

While driving a constant 65 mph on level ground the engine RPMs will go from 1700 to 2000 and then back again. Easiest way is to see with a scantool whether it is attempting to engage it or not. At approximately 35 mph connect the other end of the test light or jumper wire to.

The pwm allows the torque converter to slip and engage at different intervals whereas mine no longer has this and it. On August 08 2016. When the TCC solenoid receives a signal from the engine control module ECM it opens a passage in the valve body and hydraulic fluid applies the TCC.

4L60E goes into neutral when shifting into third gear. I bought the truck with 78000 miles on it and was never told it had the transmission replaced. I got it to roll in gear and as long as I dont come to a.

TCC Torque Converter Clutch always locked. TCC apply solenoid circuit shorted to ground TCC solenoid blockage or TC broken must remove trans and replace TC. In my experience the tranny guy who fixed mine put a pwm eliminator kit in mine which reverts the 4l60e back to the 700r4 in a sense.

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 followed by some seriously hard shifts because the tcm increased the line pressure. I have a 2008 Silverado 1500 with a 48 and 4l60e. If you know youre in 4 OD and the RPMs go up without downshifting when youre climbing a hill the converter is not locked up.

53l with the infamous 4l60e. When the ECM signal stops the solenoid closes the valve and pressure is vented causing the TCC to disengage. Its in a 1999 1500 with the 43l and the 4L60E 4WD.

No TCC Torque Converter Clutch lockup.

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