Question about GMC Cars & Trucks
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Posted on Jan 02, 2017
Sorry but if your reverse is having trouble you will probably have to replace or rebuild tranny like me. Otherwise try new filter and fluid first.
Posted on Jun 06, 2009
Super common problem with these units. Broken sun shell. Depending on where you are can be expensive. I fix this all the time for $950.00
Posted on Jul 21, 2009
Your valve body and possibly input shaft nut need to be replaced. The valve body's booster valve is worn down and won't create pressure. Before it went completely out it slammed on the input shaft nut and loosened it.
You need to replace the valve body and retorque the input shaft nut. The transmission is not junk. The above needs to be replaced and change the filter and fluid and do it every 20K miles.
Posted on Feb 22, 2010
The shift down linkage on the carburetor below the gas pedal cable might need to be adjusted to increase the hydraulic pressure on the internal clutch plates in the transmission it shows you how to do that in a car manual.
Posted on Sep 10, 2010
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