2002 Ford Truck pinging

2002 FORD TRUCK
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ARGA
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Engine Mechanical problem
2002 Ford Truck 6 cyl Two Wheel Drive Automatic

I have a 2002 F150 with 140,000 mile at low speed there is a pinging sound that sound similar to when a vehilce is running hot there is no over heating other than it runs fine what can that be an how to correct -
Nov 21, 2008 at 6:37 AM
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DAVE H
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Acceleration Ping/Knock

Faulty EGR System...Check EGR Valve and Hoses
Poor Knock Sensor Signal....Test Knock Sensor/Circuit
Poor Baro Sensor Signal...Test Baro Sensor/Circuit
Improper Ignition Timing...Adjust Timing
Engine Overheating.....Check Cooling System
Poor Quality Fuel....Use Different Fuel
Carbon Build-Up....Decarbon Engine
Nov 21, 2008 at 6:51 AM