GMC ENGINE

When The Outside Temperature Is About 40f Degrees Or Below, My Engine Idles Really Rough Until It Is Warm. It Recently Started Coding P0300...

350tbi Reman Motor. W/20k Mil. Heads On The Reman Motor Were Junk Went Bad After Only 20k. They Were Replaced W/ Edelbrock Performer Heads#...

Replaced Fuel Pump, 130k 5.3l 2wd, Opinions Have Led Me To A Possible O2 Sensor Failure? Idles Rough If It Does Start And The Only Way I...

I Have A 1999 Jimmy And Have Taken Good Care Of It. 137,000. Miles. It Cut Off While Driving, No Fuel Pressure So I Replaced The Fuel Pump...

This Problem Has Been Intractable. Or Maybe It's More Than One Problem. Since Purchasing The Truck 10 Years Ago It Has Had A High Idle....

The Front Driverside Looks As If It's A Couple Inches Lower Than The Rest Of The Truck. Looks As If It's Leaning. Also The Top Of...

Do 5.7l Gmc Vans Have An Oil Pressure Kill Switch, Activated By Loss Of Oil Pressure? Thanks For Any Replies.

After Driving 15 - 30 Minutes At 65-70 Mph On The Highway The Engine Will Miss Several Times A Minute. You Can Tell The Engine Misses...

I Am Replacing My Fuel Pump And The Connection On The New Fuel Pump Is A 4 Flat Connection To The Pump That Is Not The Original Connector....

When Sitting And Idling About 5-10 Min, With The Air Conditioning On, The Engine Will Stall (as If The Key Was Turned Off, No Hesitation...