Category Archives: GMC

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

2003 GMC Yukon Dash Gauges Not Working- Recall

My 2003 Yukon XL (Suburban) with 5.3 motor and 70k miles has no power to any of dash gauges. The truck runs and operates fine, but the radio, heater controls and dash lights work fine. No gauge activity at all. All gauges are at the zero mark. I believe I have checked all fuses at left hand corner of dash, under dash and the under hood…

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1996 GMC Sierra Air Compressor Clicking

Why does my air conditioner compressor engage and click loudly when heater is on. ProTech: The A/C compressor will run when you have the heater on defrost to take the moisture out of the air in your car. If it did not run, you would have water running down the inside of your windshield. This is a normal condition. What would be causing the clicking…

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2000 GMC Yukon Stuck In 4 Wheel High

2000 GMC Yukon-4×4 is stuck in 4hi. service 4wd light on dash is on. i changed the dash switch, same problem. i pull off the transfer case actuator and hit switch, it makes a noise and the front diff act makes noise too. the transfer case actuator does not turn though. is it supposed to? ProTech Yes it should move, you most likely have a…

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2005 GMC Envoy Check Engine Light Code P0410

Hi , i have a 2005 GMC Envoy with the code P0410 Straight six Cylinder with a check engine light. Mechanic_JK First be sure to check all the fuses. If OK, a common problem is a valve on the passenger side of the engine. If fuse is blow for A.I.R.pump, have had the pump fill with water. there is a service bulletin to replace an…

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