GMC Cars & Trucks - Recent Questions, Troubleshooting & Support


2.2L DOHC Interference
2.2L SOHC Non-Interference

GMC Cars &... | Answered 16 hours ago


Does the engine Crank but not Start or no Crank? If the engine light is on I need you to read the codes or have them read. If there is a stored code it could be very helpful. There are many reasons for a No Start. Please start here and write back. Just in case you wanted some examples. Blown Fuse, Low Fuel Pressure, Low Compression, MAF sensor, fouled spark plugs, CKP sensor or ignition control module. Hope this helps. Let me know if there is anything else. Good luck.

GMC Cars &... | Answered 2 days ago


check that you have a good solid Ground connection at that light housing and bulb socket.

1999 GMC Sierra | Answered 2 days ago


Fuel Filter
The fuel filter is contained in the fuel sender assembly inside the fuel tank. The paper filter element of the fuel filter traps particles in the fuel that may damage the fuel injection system. The fuel filter housing is made to withstand maximum fuel system pressure, exposure to fuel additives, and changes in temperature. There is no service interval for fuel filter replacement.

GMC Cars &... | Answered on Dec 02, 2019


The sensor or it's wiring are bad . Check for corossion or wire damage first . Mass air flow sensors are most affordable through Rock Auto online .

GMC Cars &... | Answered on Dec 01, 2019


Try putting some fuel in. That should start your vehicle.

1999 GMC Jimmy | Answered on Nov 30, 2019


How exactly is it 'jammed'? Is it wide open? Locked closed? stuck half way? Please use the Comment button below if you would like more help.
Go back to the basics. Check the fuse for the motor and you that you can here the motor trying move it. With the ignition OFF and safely using step ladders access the sunroof from above. Using a stiff toothbrush, cotton buds, (cue tips), and a clean rag, clean out the channels the sunroof sits in.
if you are in any doubt go to a good mechanic or a good auto-electrician and get them to look at the problem.

GMC Cars &... | Answered on Nov 30, 2019


The transmission needs inputs from the sensors on the engine, like the manifold pressure sensor, throttle position sensor, temperature sensor and others to function correctly .

GMC Cars &... | Answered on Nov 29, 2019


Can be three things

check fuse

check bulbs

check the brake light switch

GMC Cars &... | Answered on Nov 29, 2019


Eventhough your vehicle is 16 years old, GMC should be informed and may replace the faulty unit if there is a production issue.

GMC Cars &... | Answered on Nov 29, 2019


Sorry Joseph but the way you worded that makes no sense to me.

GMC Cars &... | Answered on Nov 29, 2019


On my 01 Yukon it was the switch in the dash. I took it apart abd found several bad soldier Joints. I found the same problem in the rear AC controller module. You can buy a new module or take yours apart

1999 GMC Jimmy | Answered on Nov 24, 2019


Hi Jeff. You shouldn't have to disconnect batteries for four months of storage, but it's probably a good idea to do it anyway...just to be safe.

GMC Cars &... | Answered on Nov 23, 2019


If it is the same as a 2008 GMC Yukon with conventional power, it comes out of the front wiper fluid reservoir!

2008 GMC Yukon | Answered on Nov 22, 2019

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