Yank Pt4000 Guys Come In
Thread Starter
Joined: Jun 2006
Posts: 1,429
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From: Spring Hill,Kansas
Yank Pt4000 Guys Come In Mines been in for a couple weeks and i want to hear from others if they had any problems without a tune. For the first couple days lockup worked. Then I started getting the PO757 code then i started getting locked out of gears and had to shut the car off to get gears back. Now lockup is gone. I pulled the pan the other day fearing the lockup clutch was failing but nothing was found in the pan. I'm REALLY worried now I reset the PCM tonight and still no lockup (no codes as well). I dont think anything is wrong with my trans all the gears are there and its not slipping. I guess im just trying to find out what other PT4000 guys experiences were before getting a tune. Did lockup always work or did some loose it and have to get a full tune for things to work properly. IM STUMPED! HELP!
Originally Posted by DrkPhx
I had to completely retune all of the trans tables when I installed a PT4000 after switching from a TCI 3800. If you have the stock tune, that is your problem.
"All Motor 9 Second club member"
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From: On the Bumper!
If you are getting the PO300 misfire code in your history your converter will not lock up either. I'm guessing you are in for a tune.
If you are on your stock yune, boy are you in for a good feeling
Good luck!
If you are on your stock yune, boy are you in for a good feeling
Good luck!
TECH Resident
Joined: May 2006
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From: SoCal
Mines been in for a couple weeks and i want to hear from others if they had any problems without a tune. For the first couple days lockup worked. Then I started getting the PO757 code then i started getting locked out of gears and had to shut the car off to get gears back. Now lockup is gone. I pulled the pan the other day fearing the lockup clutch was failing but nothing was found in the pan. I'm REALLY worried now I reset the PCM tonight and still no lockup (no codes as well). I dont think anything is wrong with my trans all the gears are there and its not slipping. I guess im just trying to find out what other PT4000 guys experiences were before getting a tune. Did lockup always work or did some loose it and have to get a full tune for things to work properly. IM STUMPED! HELP!
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Verdad Gallardo "All Motor 9 Second club member"
iTrader: (60)
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From: On the Bumper!
I think they are running a stock tune. You just can't expect a somewhat loose converter to act the same on a stock tune regardless of the brand. It may possibly be a mechanical problem, but you aren't the first to experience that code and symptoms.
The converter is doing what it was designed to do and the PCM is trying to adjust for what it is seeing as an issue and trying to correct for it.
IMO , if it isn't a mechanical problem (possibly a shift solinoid) then a proper tune is the fix.
Good luck and keep us updated.
The converter is doing what it was designed to do and the PCM is trying to adjust for what it is seeing as an issue and trying to correct for it.
IMO , if it isn't a mechanical problem (possibly a shift solinoid) then a proper tune is the fix.
Good luck and keep us updated.
Thread Starter
Joined: Jun 2006
Posts: 1,429
Likes: 1
From: Spring Hill,Kansas
Im still on a stock tune...I guess I just expected the converter to lock sometimes now it wont at all. My trans pan looks great so I dont think anything is coming apart. I guess I'll just have to get me a trans tune soon
