Okay.First off. I have a 9 bolt borg warner rear end from a 3rd gen.. I heard it is not made anymore and I was wondering if anyone has a part number to the gasket seal for it. I wanna change the oil but i have no gasket.

Secondly. My torque converter is locking up when it should be. It is causing my engine to be bogged down. So i did the lockup switch as done in the tech articles. It works great until my car warms up and then the torque converter will override the switch and lockup in over drive. I am only goin 50mph or so which is not when im wanting to lockup. Is this because the torque converter is shot? If so im thinking of buyig a nonlockup one. How much mpg would i be losing here?

 

Check TV cable adjustment and it may be possible the TCC lockup switch in the tranny is going

 

The best gasket is the tubular style. There are several part #s that will work.... 598B is one, for example. But there are also MANY others.



No your TC problem is not the TC itself. Sounds like it's working perfectly. The "problem" is that your idea of when the TC should lock up is different from the factory's idea of when it should lock up. Not that the factory would know anything about that, or anything like that.... but it is most easily changed by PROM programming, since that's what's controlling it.

It is not the TV cable (since that is not conected in any way with the ECM's decision to issue the TCC command) nor is it the solenoid since it seems to be responding perfectly to commands both from the ECM and from your hacked-in switch. There is no such thing as a "TCC lockup switch" in the transmission.

 

when my lockup switch went south, it'd flutter in and out of lockup in forth. sounds like everything is gtg TC wise.

mine boggs down too, but i'm far from stock, so...

 

Have you thought of checking your vehicle speed sensor? it is located on the back of your instrument cluster. The pre 89 camaros used a cable driven speedometer and used an optical vehicle speed sensor.

The VSS tells the ECM how fast the vehicle is going. Most people think the VSS is only used for the lock-up torque converter. The VSS is also used to control the EGR valve, the charcoal canister purge valve, the electric cooling

fans, idle speed, and air/fuel ratio.

So if your lockup is digengaging with the brake aplied... I'd say the TCC is working properly... and your ECM is communicating as well.

I'd check the VSS for erratic operation. If it completely fails, it will throw a code 24, but if is is still working, but not correctly, no code will throw. That was what was wrong with my 87 IROC.

 

on my 86 iroc my car surges in drive at a light and while a steady cruise no matter how fast im going. when i give it more throttle it straightens out. until i ilet up on the throttle to get t o cruising speed again. no code 24 thrown in the ecu. i have a 350 vette motor TPI with a 700r4 trans. could it be a vss?? and where would it be located?? thanks