GMC SIERRA ENGINE SYMPTOM

My 1990 Gmc Sierra 4x4 Pickup Is Having Starting Problems. I Checked The Battery, It Reads 12.0 Volts. On My Tester. I Replaced The...

I Have A 2000 Gmc Sierra 1500 That Will Not Start When Is About 0 Degrees And Below Outside. I Thought That It Might Be The Fuel Filter...

Ok Here Goes I Had The Trucks Computer Read For A Code Because It Keeps Stalling While In Drive The Codes That Showed Were One For The O2...

I Have Tried Changing The 02 Sensors, Fuel Pump, Fuel Filter, And Egr Valve. The Problem Still Having Same Problem. Under Acceleration...

My Truck Was Running Fine, Then It Lugged A Few Times Then Did Not Lug. Eventually It Did Not Quit Lugging. The Idle Was Bad But In Reverse...

While Running And Idling, Everything Is Normal. All At Once It Became Hard To Start. I Have To Push On The Throttle To Get It Started....

I Just Did A New Short Block And New Injectors In My 2002 Duramax And Now Number 2 And 7 Are Showing +15 And All The Rest Are Showing -7 And...

While Driving, Specifically Cruising, The Rpms Do Not Hold Steady. It Will Fluctuate A Couple Hundred Rpms. There Is An Occasional Shudder...

1990 Sierra, 350, Milage 189.000, Out Of The Blue? My Truck Started Leaking Oil Spraying The Cars Behind Me, No Lights Came On Until I...

Hey, I A Few Months Ago I Bought A Gmc K1500 5.0l V8 Tbi From 1989. When I First Got It, It Had No Spark Or Fuel. I Replaced The Ignition...