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GENERAL INFORMATION TROUBLE SHOOTING ENGINE PERFORMANCE TUNE-UP TROUBLE SHOOTING Problem & Possible Cause Action Carbon Fouled Plugs Clogged Air Filter Replace Air Filter Incorrect Idle Speed Reset Idle Speed Faulty Ignition Wiring Replace Ignition Wiring Sticky Valves/Worn Valve Seal Check Valve Train Fuel Injection Operation Check Fuel Injection Wet/Oil Fouled Plugs Worn Rings/Pistons Overhaul/Replace Engine Excessive Cylinder Wear Overhaul/Replace Engine Plug Gap Bridged Combustion Chamber Carbon Deposits Clean Combustion Chamber Blistered Electrode Engine Overheating Check Cooling System Loose Spark Plugs Clean/Torque Plugs Over-Advanced Timing Reset Timing Wrong Plug Heat Range Install Correct Plug Melted Electrodes Incorrect Timing Reset Timing Burned Valves Replace Valves Engine Overheating Check Cooling System Wrong Plug Heat Range Install Correct Plug Engine Won't Start Loose Connections Check Connections No Power Check Fuses/Battery Loose/Worn Timing Belt/Chain/Gears Check Belt/Chain/Gears Engine Runs Rough Leaky/Clogged Fuel Injectors Repair Fuel Injectors Leaky/Clogged Fuel Lines Repair Fuel Lines Clogged Fuel Filter Replace Fuel Filter Incorrect Timing Reset Timing/Check Advance Faulty Plugs/Wires Replace Plugs/Wires Uneven Compression Overhaul/Replace Engine
1998 Chevrolet Pickup C1500 GENERAL INFORMATION TROUBLE SHOOTING
1998 Chevrolet Pickup C1500 GENERAL INFORMATION TROUBLE SHOOTING
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