Question about 2008 GMC Acadia
Is it possible that it could be a sensor? The transmission was rebuilt by GMC just before the 100,000 mile warranty ran out?
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Posted on Jan 02, 2017
There isn't a modulator on this trans as it is electronic
You can have first gear going forwrd but no reverse. It is possible. The low/ reverse clutch isn't needed to go forward.
Posted on Apr 02, 2009
It sounds to me like your transmission is not well. It's working when the fluid is cold but not as it warms up. Pull the dipstick and check your transmission fluid for color and smell. It should be pinkish and smell like oil. My guess is that it will be closer to brown than pink and have a burnt oil smell to it. It the transmission is full, check the level with the trans warm,engine running, in neutral.I'd be shopping for another transmission. If the fluid is below the add mark, you an usually buy yourself some time on the replacement by changing the trans fluid and filter.At the same time add a transmission treatment with the new oil,I've had good luck with Lucas. Hope this helps.
Posted on Jun 18, 2009
96 gm trucks had a proble with third gear burning out because of a ground issue from pcm..there was a bulletin for adding a new ground for third gear control circuit...aftermarket trans shops do not remember this problem and it is often overlooked..take to local dealership and you should be able to get problem resolved
Posted on Dec 27, 2009
did you replace the torque converter I am having the same problem and I have been told the torque converter could be bad
Posted on Jan 26, 2010
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