Question about 2007 GMC Sierra 3500HD
80,000 miles. Just have the trans rebuilt. Had new fuel pump and sending unit put in about two months ago. Problem now is the following: Had truck back one week from trans rebuild. Ran fine until today. Truck will idle a little rough. When driving it will just bog down when accelrator is push down. When you let off will run but at a very low speed. Trans is automatic and does this in all gears. Don't believe this has anything to do with trans. Could it need tune up or some sensor?
Do a good tune up it is not the tranny . you might think about a good diagnostic test to make sure it is not a senser it is hard to say for me onless i could look the truck over my self . good luck
Posted on May 18, 2008
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Posted on Jan 02, 2017
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