I HAVE A 97 CHEVY TAHOE JUST REPLACE ...

1997 Chevrolet Tahoe

Tiny

Narce36

January, 9, 2013 AT 6:45 PM

I have a 97 chevy tahoe just replace transmission about 3 months ago. When driving my rpm are high and doesn't change gear only goes 20 miles an hour, scan the truck but no transmission codes come up got a codes 420 and 430. Transmission shop says nothing wrong with the transmission. Please help what do you think it could be

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Ecm Problem

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