Chet1185

Camaro won't downshift into second over 35 mph. Could it be tps?

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Chet1185

Swapped the tps into my ta and it works fine. Any other ideas?

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12SCNDZ

Original transmission?

Frank

Chet1185

No it was just rebuilt recently

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12SCNDZ

Did they rebuild your unit or sell you a different trans?

Frank

Chet1185

It was a unit i bought off Ebay rebuilt. It was junk, had it rebuilt again. It was a stock rebuild with a shift kit. Probably not a good idea.

It worked fine.

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12SCNDZ

Most likely, you have a '96-up trans in the car. GM changed the downshift strategy in '96. It was different than the '95. They have a different resistance downshift solenoid, valve body, and separator plate.

Frank

Chet1185

It didn't do it when it was in my ta.

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Chet1185

And it was fine in the Camaro until it sat for 7 months.

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12SCNDZ

Any codes?

Gtpguy

Clean the maf and reset the pcm. Mine does that occasionally when the maf gets contaminated.