GMC Sierra 1500 Questions Maintenance & Repair
98 K1500 Brake Light Problem
I changed the brake booster out on my truck a few days ago and the brake work well now but brake lights are non existent. I found a Chinese looking wire harness hanging under my dash after I got th...
Transmission Shifting Out Of 1st Gear
Just replaced new GM transmission last summer. Has 3 year warranty. Maybe once every 3 or 5 months from a stop I accelerate and it stays in 1st gear (3k) on tach. I let off pedal and it engages i...
1994 GMC Sierra Crank But No Start
My 1994 GMC Sierra 1500, 5.7L, stopped working going Up the mountain... heard a pop sound from under the hood. Lost all engine power cranked no start. Battery is good, terminals are new, ground ar...
Heater
Heater not blowing out hot air. Thermostat was replaced, worked 1 day then quit.No leaks! all hoses going to heater coil Hot.
GMC Sierra
My truck just died one day while driving it would turn over but not crank. Finally found bad cap and rotor button. It cranks now but misses pretty badly. What could cause this
Fuel Gauge
My trucks gas gauge won’t work when it’s rainy but works fine when dry
Have A 2004 GMC Sierra 1500 V-8, Stopped At Red Light, Next Thing I Know Ga...
acted like someone had hit the gas & was pushing me through the intersection. had to throw it into neutral to stop. motor roaring, had to hit gas to get it to stop that, shocked me badly. what cause...
1991 GMC Sierra K1500 Backup Lights Not Working
I have no backup lights. I have parking and break lights but no backup. I replaced the lights and circuit boards but they still don't work. Where do I start to find out why they aren't working?
Problem With It Blowing Fuses
Everytime I turn on the parking lights , it blows a fuse. What could be causing this ?
How Much Would It Be To Rebuild Or Replace My 5.3l V8 Engine On My 2005 GMC...
My truck has 306,xxx but I believe it can last a little bit longer. I have another vehicle but I would like my truck to go riding around in the mountains. I am just wondering if it would better to ...
Oil Pressure Dropping To 0
My oil pressure drops to 0 after about ten miles. Changes the sensor and screen under sensor. No change. Changed oil pump, O ring, cleaned oil pan and pick up. Was at 55 psi cold and went down to ...
GMC 1994 Truck Ignition Column?
I have a 1994 GMC Sierra SLE pick up truck. Ithe truck was having difficulties turning the key to start. It wouldnt pass that last click to make it start. I'd try a few times and it would start....
Fuel Tank
Where is a fuel tank pressure sensor located
Headlights
Why won’t my headlights go on in my 1994 GMC Sierra 1500 sometimes I go on as the car warms up but when it’s cold outside they don’t go on
Last 4.8 Swap To A 5.3
What to I need to swap my current blown 2013 gmc truck 4.8 LS to a 2016 5.3 LT engine
Fuel Pressure
How do I determine if low fuel pressure (25) is the fuel pump or the fuel pressure regulator?
Transmission
Rebuilt 2000 GMC SIERRA 1500, now it wont move when put in gear
The Instrument Panel With All Of The Gages Have Died And The Code Port Has ...
what do I do with this truck? Instrument panel went crazy, gages dropped and came back up. And stuck at the following: RPMs 1500, Speed-sitting still- is 57 mph.,temp is in normal range, code port i...
Electrical Stupidity, Please Give Feedback....
I have an 01 gmc with the 5.3, I just did a motor swap (old had a bad oil consumtion issue). Anyway upon completion it would crank but not start, I followed the youtube advice and moved the grounds ...
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