Do i have to change stock ecm with high stall tc?
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Supreme Member
Joined: May 2003
Posts: 1,009
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From: Gilbert
Car: 1990 Iroc-Z
Do i have to change stock ecm with high stall tc?
Ok, i have been having alot of tranny problems. This is my second "rebuilt" transmission that is doing the same thing. I installed it, started it....and 4th (OD) gear won't do nothing. I changed over from stock tc to a 2400-2600 stall. The car will pull ok in 1st, 2nd, and 3rd....feels really weak, but it seems to shift fine. Then when I put it into overdrive, i have to rev really high just to get the car to move. And it doesn't move very much. I have talked to the tranny guy and he thinks it is something with my car. Could it be the TC? ECM?
Someone please shed some light on this. I am sofa king lost. I have spent so much money & time on this stupid car. I am without transportation. HELP!
Could this be something else or is this for sure a tranny issue?
I posted this in the tranny forum too....i need help.
Someone please shed some light on this. I am sofa king lost. I have spent so much money & time on this stupid car. I am without transportation. HELP!
Could this be something else or is this for sure a tranny issue?
I posted this in the tranny forum too....i need help.
Last edited by prOject-IrOc; Aug 12, 2003 at 04:55 PM.
Senior Member
Joined: Aug 2001
Posts: 972
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From: Memphis, Tn
Car: 92' RS
Engine: 357
Transmission: TH350
Axle/Gears: 4.10
Im guessing your running a TPI b/c of your name. And you running a 700R4 more than likey b/c you sayed O/D. But correct me if im wrong b/c im not 100% sure. What eninge, trans, and year (for ECM)? What type convertor?
Senior Member
Joined: Aug 2001
Posts: 972
Likes: 0
From: Memphis, Tn
Car: 92' RS
Engine: 357
Transmission: TH350
Axle/Gears: 4.10
I really dont want to lie to you and give you any wrong info but i want to help you b/c i just had to rebuilt mine b/c of someone elses stupidty. But i seriousley dont beleive its the ECM that has to do with anything b/c all it controls really is the convertor lockup.
It sounds like the 4th gear switch or the clutches are slipping when you go into overdrive b/c you have alot of strain on the trans. But i dont know for sure. Sorry i couldnt help.
It sounds like the 4th gear switch or the clutches are slipping when you go into overdrive b/c you have alot of strain on the trans. But i dont know for sure. Sorry i couldnt help.
Thread Starter
Supreme Member
Joined: May 2003
Posts: 1,009
Likes: 0
From: Gilbert
Car: 1990 Iroc-Z
hey thanx anyways. anyone else think it could be anything other than the tranny? i am about to buy another tranny, and send this scrap metal i bought from ebay back to florida. i just don't want to buy another tranny and have the same problem.
i been without a car for months now. anyone??
i been without a car for months now. anyone??
Last edited by prOject-IrOc; Sep 2, 2003 at 04:12 PM.
Senior Member
Joined: Mar 2001
Posts: 548
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From: Texarkana, Texas, USA
I don't see the ECM causing it, correct me if I am wrong but doesn't the ECM just control LOCK UP? It sounds like you may have a lip seal gone bad or clutch burned. How NEW is this tranny?
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