GMC Questions and Answers
Post your GMC question or share what you know by answering questions
Get your questions answered by the AutoMD Community.
Share your expertise and help others with vehicle questions.
Browse GMC Categories
2005 GMC W4500 Forward W4S042 8 Cyl 6.0L
Engine - by thar 8/17/2015I have a bad vacuum pump
The bearing has worn out and making noise Where can I find a replacement pump aftermarket or new?
1998 GMC Yukon SLE 8 Cyl 5.7L
Transmissions & Drivetrains - by Erich 8/16/2015I replaced the flywheel and after I put it all back together when I shift into any gear,doesn't even try
I've even pulled the transmission,inspected the torque converter.... Filled it....locked it in place. Idk.
2005 GMC Sierra 1500 WT 6 Cyl 4.3L
Preventive Maintenance - by TPratt133 8/15/2015Lots of Electrical problems!!!
My 2005 GMC Sierra has 97,000 miles on it. The other day I left home, and noticed my speedometer was jumping around like it was crazy, just flopping and bouncing all of the place. Then the next time I drove my truck, The speedomoter was working properly, but I have ...
2006 GMC Sierra 1500 SLT 8 Cyl 5.3L
Body & Interior - by Steve 8/14/2015Auto Lamp will not turn off in sunlight
Is this a switch or sensor issue?
1990 GMC C1500 Sierra 8 Cyl 5.7L
Transmissions & Drivetrains - by Ryan 8/12/2015How much I am round about to pay
My 1990 GMC SIERRA 1500 5.7l is having trouble getting out of second gear I think its the flywheel or torque converter was wanting to see how much or atleast rough estimate on cost to fix it
2005 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
Engine - by Ken 8/10/2015My truck wont turn over
Dash lights up no cranking, please any advice?
1997 GMC Yukon SLT 8 Cyl 5.7L
Engine - by Genuard87 8/9/2015Intake manifold gasket replacement
Hello recently I replaced the intake manifold gasket on my 97 gmc yukon slt 5.7l vortec and now it wont start. I went back through may steps to see if I had missed anything and everything was in place. The truck cranks but does not start what could it be?
2010 GMC Sierra 1500 SL 8 Cyl 4.8L
Engine - by james schulle 8/9/2015Display engine hot AC turned off & temp gage bottomed out
Laser temp check shows 160 on block - 145 on hoses - 330 on exhaust Sensor issue - where is it - don't have book Fuse issue - where are they & why would it open
1999 GMC Sonoma SLS 6 Cyl 4.3L
Brakes - by Tracy Snow 8/5/2015I need a diagram of the rear brakes on my truck, can't figure out how you put these little metal clips on the break pads
Need to know how the metal clips go on the pads in the calipers? I need a diagram of the break Assembly please........
2003 GMC Sierra 1500 Base 6 Cyl 4.3L
Engine - by roy christian 8/5/2015Engine whont tern over on starter
my 03 gmc whount tuern over starter was checked lights / gagegs in cluster stay on whean i shoute key off wood it be the prombulm under dash elactrycal please helpme
1994 GMC C1500 Sierra SL 8 Cyl 5.7L
Preventive Maintenance - by luthey 8/4/2015Battery gauge drops to line above red
Battery and Alternator replaced, when headlights are used gauge drops above red line, when not in use gauge stays at 14. Why?
2003 GMC Sierra 3500 SLT 8 Cyl 6.6L
Engine - by don 8/4/2015Ac blows warm sometimes
ac blows cold ,then warm,then cold again most of time is cold
2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
Preventive Maintenance - by tony 8/4/2015My truck won't start
It was in security lock then I bought a bypass and my truck still won't start but the starter is good. so what should I do?
2004 GMC Sierra 1500 SLT 8 Cyl 5.3L
Transmissions & Drivetrains - by Gary Bicknell 8/4/2015Vehicle ceases to move after short distance
Vehicle will drive 1/4-1/2 mile but then will go no further. Engine revs, but drive train does not turn. Turn it off for 5 minutes and it will travel the same distance again
1996 GMC K1500 Sierra SLE 8 Cyl 5.7L
Engine - by Tpw conductors 8/2/2015Truck stals when press on gas
My truck stalls when u press on gas and won't start unless u use ether unless u have battery charger on it new battery alt tests good don't get it