LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

cant wont shift into 4rth, is it PCM or trans problem.

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Old 03-12-2004, 08:03 AM
  #1  
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Location: miami
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cant wont shift into 4rth, is it PCM or trans problem.

it does it some times, not always, u hit the gas and it wont go into 4rth ,only goes into 4rth at like high RPMS 6000 .

i think is the PCM,might be goin bad.


transmision is good, it was tuned up not long ago.
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Old 03-12-2004, 08:33 AM
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Auto or Standard? I had the same problem with my six speed... it wouldn't shift into fourth except extremely high RPM's then eventually it wouldnt shift into 4ht at all... eventually i ended up losing 3rd too... but the problem was that the 3/4 gear synchros were cracked
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