GMC ENGINE

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Crank But Will Not Start

Bought This Few Days Ago. Man Said It Started Running Rough, And Wouldn’t Start Back Once It Shut Off. And Wouldn’t Start Back. Sat A...

Asked by Thisthis09 ·

24 ANSWERS

1 VIDEO

43 IMAGES

2009

Turn Over an Engine by Hand | Bar Over

VIDEO

Turn Over an Engine by Hand | Bar Over

Instructional repair video

Code Reading

A check engine light, also known as a service engine light, or a MIL (malfunction indicator light) is designed to let you know there is a problem with one of your car's...

No Start After Positive Battery Terminal Touched The...

I'm Having An Issue With My Truck Where The Battery Positive Terminal Touched The Inside Metal Of The Fender And Grounded Out And Kind...

Asked by Vlarry ·

5 ANSWERS

45 IMAGES

2006

Shuts Off While Driving?

My Truck Wont Crank When I Try Unless I Hold The Key In The On Position For At Least 15 Seconds. I Replaced The Starter Relay And It Still...

Asked by soupman641 ·

55 ANSWERS

14 IMAGES

2004

Crankshaft Position Sensor Replacement?

I'm Replacing The Ckp Sensor On My Truck Listed Above 2500hd With A 6.0l Vortec. I Know That I Have To Do A Relearn Procedure After...

Asked by KingnQueen0526 ·

45 ANSWERS

31 IMAGES

2003

Engine Loses Power

When I Am Driving My Car I Will Lose Power And My Gauges Will Act Crazy. It Does It 4 Or 5 Times While I Am Driving. I Have Replaced All My...

Asked by mik716 ·

54 ANSWERS

1 IMAGE

2001

Engine Will Not Start And Run?

Started Having Problems With Truck Not Starting. Thought Was Battery, Replaced Battery An Alternator. Would Work Fine For A Day Or So Then...

Asked by Davidblank ·

49 ANSWERS

11 IMAGES

2007

P1000 Trouble

A P1000 code is designed to inform the driver the engine management system is not working to it's full potential. When in open loop, the powertrain management system is...

Engine Not Running

I Just Completed The Replacement Of Both Head Gaskets And A Valve Job. After I Finished And Tried To Start The Engine, It Would Not Start....

Asked by The Salmon ·

62 ANSWERS

8 IMAGES

1999

Engine Oil Leak After The Truck Sits Parked For Four...

It Leaks Oil Mostly After It Sits With Engine Off For Appx 4+ Hours. I Know It Has A Front Intake Leak, But It Seems To Be Coolant. And...

Asked by Doob ·

1 ANSWER

23 IMAGES

2003

Engine Shut Down

Hello, I Wanted To Get A Better Understanding Of What Could Be Wrong With My Truck. I've Had A Coolant Leak For About 4 Days Now...

Asked by matt2511 ·

63 ANSWERS

2 IMAGES

1999

A Pinging Sound Only Under A Load

I Filled Up With Gas And Nw I Have A Pinging Sound And Chattering I Have Changed The Fuel Filter, New Plugs And Wires New O2 Sensor New...

Asked by vette2112 ·

79 ANSWERS

6 IMAGES

1990

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