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Transmission help

bell_man

By bell_man
February 27, 2013 in Ask A GM Technician

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bell_man

Enthusiast

bell_man

Posted February 27, 2013

Posted February 27, 2013

95 gmc yukon. The trans won't shift into second without letting off gas and I have no overdrive. I want to make sure this is not a PCM signal sending issue before I pull the trans and have it rebuilt. So my question is how do I tell if my PCM is sending the shift signal to the trans? Is there a method with a volt/ohm meter?

gmtech4

Senior Enthusiast

gmtech4

Posted February 28, 2013

Posted February 28, 2013

get it scanned ,,,oil condition is ????

sounds like its done to me ,,,i rebuilt just a few....

Enthusiast

aflesch

Posted February 28, 2013

Posted February 28, 2013

Sounds to me like the Throttle Position Sensor is going out to me. I would definitely check that before pulling the tranny.

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