Tech Questions

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I think I'd rather have no cruise control than no control over my transmission.

I've been checkin' Tony. Nobody has a clue as to why it might be doing that.

AllData says that the transes on those did have ground issues that can cause a lot of problems. It might also be a problem that would get worse over time. They say it's a good idea to run a redundant ground.
 
i will look into it in the next couple days. i had pancreatic surgery yesterday so no real physical activity recommended for a few:(
 
I think I'd rather have no cruise control than no control over my transmission.

I've been checkin' Tony. Nobody has a clue as to why it might be doing that.

AllData says that the transes on those did have ground issues that can cause a lot of problems. It might also be a problem that would get worse over time. They say it's a good idea to run a redundant ground.

Thought that it was resolved except for the 45-50 mph range or did I read the text message wrong? It could pontentially be a gearing issue and cleared up with taller gearing. Darrel, excuse me, Da'real or Jeremy might be able to comment if the 3rd gens are shift happy at the 45-50 mark since I know they run 33s and 4.10 gearing.

Also keep in mind that it was a junkyard ECU. If its the TC locking and unlocking I would bet on gearing. If its downshifting into third gear and Todd suggestion doesnt work, I wouldnt over look the possibility of the ECU being bad.
 
I think I'd rather have no cruise control than no control over my transmission.

I've been checkin' Tony. Nobody has a clue as to why it might be doing that.

AllData says that the transes on those did have ground issues that can cause a lot of problems. It might also be a problem that would get worse over time. They say it's a good idea to run a redundant ground.

Thought that it was resolved except for the 45-50 mph range or did I read the text message wrong? It could pontentially be a gearing issue and cleared up with taller gearing. Darrel, excuse me, Da'real or Jeremy might be able to comment if the 3rd gens are shift happy at the 45-50 mark since I know they run 33s and 4.10 gearing.

Also keep in mind that it was a junkyard ECU. If its the TC locking and unlocking I would bet on gearing. If its downshifting into third gear and Todd suggestion doesnt work, I wouldnt over look the possibility of the ECU being bad.

I was diagnosing Tony's problem.

How would a ground cause the front end to shake?

What the poop are you guys talking about? Who brought up tonys trans?....which by the way isnt "shift happy" its "shift insane" from what he tells me.

To the hi-jackers problem Im betting something is binding due to seizure, or grenade-ness. maybe in the diff, but prolly in the CV. "side to side-ness" suggests its sometihing south of the diff.
 
Whats the deal with Tony's trans? I thought my trans was takin a s*** a few weeks ago when it would sownshift into 2nd while going about 50mph whenever it felt like it! Turns out there is some sorta slack when the shifter is in "D". I can move the shifter slightly, while still in "D", and click it into the 2nd gear range.

BTW Todd, I have access to Identifix if you want me to look and see if there is anything about whatever you guys are talking about.
 
Lets keep this thread on track

I agree

Anyone have any experiance with a differential locker (I think im saying that right) Im worried about the on street manners...what do you guys think?
 

You can get 24s from the factory now.

For the gangster baby daddy.


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TECHNICAL BULLETIN # 132

DATE: Sep. 1992

TRANSMISSIONS: All Electronically Shifted Units

SUBJECT: Intermittent Electrical Problems

APPLICATION: All Electronically Shifted Units

Intermittent Electrical Problems

Wrong gear starts, no upshift, no downshift, falling out of 4th gear, etc may be caused by poor grounds. This applies to any electronically shifted unit, import or domestic.


To test for a poor ground, connect the black lead of your digital voltmeter directly to the negative battery post and probe the suspect ground wire with the positive lead. A good ground will read 0.1 volts or less. More than 0.1 volts is a poor ground. Keep in mind the circuit must be operating to accurately check the ground.





Using a service manual for the vehicle you are working on, locate the transmission computer ground circuit. In the example shown, B and D are the grounds. Now with the vehicle running in gear, backprobe B and D with the positive lead. Make sure the negative lead is hooked directly to the NEGATIVE BATTERY POST. The voltmeter must read 0.1 or less.
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TECHNICAL BULLETIN # 132

DATE: Sep. 1992

TRANSMISSIONS: All Electronically Shifted Units

SUBJECT: Intermittent Electrical Problems

APPLICATION: All Electronically Shifted Units

Intermittent Electrical Problems

Wrong gear starts, no upshift, no downshift, falling out of 4th gear, etc may be caused by poor grounds. This applies to any electronically shifted unit, import or domestic.


To test for a poor ground, connect the black lead of your digital voltmeter directly to the negative battery post and probe the suspect ground wire with the positive lead. A good ground will read 0.1 volts or less. More than 0.1 volts is a poor ground. Keep in mind the circuit must be operating to accurately check the ground.





Using a service manual for the vehicle you are working on, locate the transmission computer ground circuit. In the example shown, B and D are the grounds. Now with the vehicle running in gear, backprobe B and D with the positive lead. Make sure the negative lead is hooked directly to the NEGATIVE BATTERY POST. The voltmeter must read 0.1 or less.

Tony - PM me your email and Ill send you the EWD for the trans in pdf format for the 3.4 to check the computer grounds for the trans that Todd posted
 
Got it......(i dont got it)



What the f-hell does all this mean.....



Are we keeping on track, this thread does state "tech questions", although I think it was meant for Marks tech questions


I'll send you a PM Steffy


I need all the help I can get with this
The Insane Shift s*** my trannys doing is about to drive me crazy
 
Thanks for the offer Luke but I have already worked out a deal with Tony. If his doesn't work I may get back with you.

As usual its almost day 3 of winter shut down and I still haven't made it into the garage yet. I've been sick, then had to go spend today at my moms fixing things there. Is it just me or does this happen to anyone else? Every time I plan on working on the rig all hell breaks loose somewhere else and my plans are shot. But hey maybe tomorrow.

Mark
 
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