Category Archives: GMC

GMC truck repair questions and answers. Expert mechanics offer free help, information and advice.


1991 GMC Sonoma baby gas pedal till up to speed

I have a 1991 GMC Sonoma, 2.8 liter TBI engine, 5 speed, 81,000 miles that bogs downs when you give it gas you can baby the gas pedal to get…

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GMC Yukon SLT 2008 Struts

Hello. I have a 2008 GMC Yukon SLT that has a bad driver side strut. I purchased a set of Detroit Axle strut kits, but they don’t have the electronics…

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Gmc truck hose on manifold

There is a hose on top of manifold and it goes to the back of dash board what is the name of the part the hose is connected to by…

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GMC Safari Fuel pump vibrating loudly

i have a 1996 GMC Safari i changed fuel pump in the tank it worked fine for about 10 miles then it just died while going 30 mph and a…

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1500 GMC Has Fuel Pressure But Won’t Start

I have a 1994 GMC S1500 4.3 I t would shut down on me I was able several times to restart with either I replaced fuel filter fuel pump i…

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2001 GMC Safari Coolant Leak and Rough Idle

Hello. My son has a 2001 GMC Safari with a 4.3 engine. He complained of a “rough idle” along with a coolant leak. Not knowing what the rough idle might…

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GMC Canyon Code P0116 Temperature Sensor And P0102 MAF

2006 GMC Canyon. When you push on the gas to take off it hesitates, while I am driving you can feel the engine hesitating, and when I slow down to…

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Warm Air From GMC Sierra Vents With A/C On

A/c compressor kicks on when ac is turned on, but no cold air comes out of the vents. You can change which vents the air comes out of. The ac…

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