Mechanics

TROUBLE DOWNSHIFTING AND ACCELERATING

1994 GMC Truck

Transmission problem
1994 GMC Truck V8 Four Wheel Drive Automatic 216000 miles

When I drive up a hill or need to downshift to accelerate my truck runs rough the tach jumps around 2,000rpm and makes a bogging sound, I think it might be slipping but am not sure, I would rather try some other things before I drop a couple hundred on a rebuild, thanks
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Indykid77
June 16, 2010.



It sounds like he needs a tuneup

Dr Loot
Jul 21, 2010.