GMC Sierra Engine

Is It My Oil Pump Or The Oil Sending Unit? My Truck Oil Gauge Is Showing That My Oil Pump Is Not Working Properly. It Went From 80 Lbs...

The Engine Runs Hot. I Ran Low On Coolant Last Week So I Filled It Up,now It Runs Hot All The Time. Before, It Ran Half Way Between 100...

1998 Gmc Sierra V8 Two Wheel Drive Automatic I Replaced Valve Cover Gaskets And Now Im Getting A P1345 Code

Relpaced Waterpump Replaced Belt Thermastat And + Battery Cable After Roadside Water Pump Failure After All Done Started Truck And Was...

Engine Mechanical Problem 1998 Gmc Sierra 6 Cyl Two Wheel Drive Automatic Hello, I Have A 98 Gmc 1500 Siera, 4.3 Vortec Eng (v6)...

I Replaced The Pluges And Wires, Cap And Rotor. Iv Drove It For A Couple Of Weeks Since And Now Somtimes When I Start It It Will Have...

Air Conditioning Problem 1998 Gmc Sierra V8 Two Wheel Drive Automatic I Have Been Doing My Own Servicing Of My Air Conditioning For...

My 98' Sierra Has Just Started Misfiring. The Code I Got Siad It Was Misfiring On Multiple Cylinders And I Got The Code Twice In One Reading...

After Installing A New Intake Manifold Gasket My Truck Will Not Start

I Have A 98 Z71. Cranks Attempts To Start But Does Not Start. Have An Actron 9180 Scan Tool. Initially Gave Me A P1345 Code, But After...