GMC SIERRA

I Bought This Truck And When I Turn On The Headlights I Loose My Turning Signals And Taillights. The Blinkers Work When The Lights Are Off....

My Truck Started To Stall But Would Restart No Problem. But Now It Wont And One Thing I Noticed Is That The Service Engine Soon Light Is Not...

I Am Getting What I Am Pretty Sure Is A Belt Squeaking Noise. I Took A Little Tension Off Of The Belt By Moving The Automatic Tensioner A...

Hi There, The Truck Will Idel Ok At First And Then Stall. Expeially If You Turn The Radio, Wipers Lights Or Heater On Or Put The Break On....

I Know I Have Done Things A Little Backwards While Trying To Fix My Truck. So Far I Have Replaced My Plugs And Wires (gapped Them According...

Hello. Truck Was Running Fine. The When I Tried To Start The Engine It Didn't Start But Head Lights Worked Radio Worked. Got A Tow Home And...

My Speedometer Is Saying That I Am Goign 30mph When I Am Stopped. When I Move It Goes Up To Over 120 Mph When Going 50 Mph.

Truck Is Denali 6.0 Litre, Ses Light. It Appear The Odbii Port Is Dead, Tried 3 Code Scanners (last One I Know Is Good As I Ran It On My...

I Have A Factory Round 7 Pin Trailer Plug Installed On My Truck That Is Tied Into The Wiring Harness. It Has No Power Running To It. I...

I Have A Relatively Low Mileage K3500, Drw, 4 Wd, Diesel, At. Only When Decelerating - I Hear Popping Noises In The Front/center....