GMC Truck Engine Compression

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Engine Repair On 98 GMC 1500 Pickup

1998 GMC TRUCK

Code Po300 Mutiple Misfire. I Have Replaced The Timing Belt,head Gaskets,spark Plugs,valve Cover Gaskets,intake Gasket, All O2 Sensors, Cat...

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Asked by pbryand13007

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Backfire Burning Oil Compression Hard to Start Hesitate Idle Erratic Idle High Idle Low Idle Rough Lean Low Power Misfire Noise Not Cranking Over Not Running Overheat Revs Up Runs Rough Sputter Stall While Driving Stall at Idle Surge

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