Question about Cars & Trucks
I changed the spark plugs and spark plug wires. This corrected this the last 2 times and isn't working this time. I only have 80,000 miles on it. It has done this since it was new. About every 4 years. This is the first vehicle I have change the plugs and wires on before 100,000 mles
Sounds like a sensor problem... you may have a faulty mass air flow sensor .. makes car run rich or lean burns plugs out.
Posted on Nov 24, 2014
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Posted on Jan 02, 2017
SOURCE: ENGINE WONT TURN OVER
sounds like the timing belt it has a interference engine so if the timing belt broke you could have bent rods and cracked pistons or worse. good luck
Posted on Dec 15, 2008
If the plugs get wet, then you have a spark problem somewhere in the ignition system. Pull a spark plug and hold it against a ground while you turn the engine over. You need to see a fat blue spark. If not, check the distributor, spark plug wires and coils. An easy way to test for spark is with an inexpensive spark tester. This is a device that is readily available at most auto supply stores. If the plugs do not fire properly, check the spark plug wires for fraying or cracking. Next, you need to check the coil(s). If firing voltage is low (weak spark), measure the coil primary and secondary resistance with an ohmmeter. If it is out of specifications, replace the coil. Also, make sure the coil is receiving normal voltage from the PCM or ignition module. If it is low, check the charging system for anything that may be reducing alternator output (battery and alternator cable connections, ground connections and voltage output).
Posted on Mar 22, 2009
SOURCE: diagram of spark plug
Check this for 4.6 or 5.4 sizes engine...
2004 Ford Expedition 4.6 liter V-8 VIN "W"
2004 Ford Expedition 5.4 liter SOHC V-8 VIN "L"
Hope this help (remember comment and rated this).
Posted on May 05, 2010
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