SPARK PLUGS BURN RED

2007 Ford Expedition

Tiny

frostgang

April, 24, 2012 AT 2:11 AM

What could be wrong if spark plugs burn red and then burn out and car misses on pull in ford expedition 2007 5.4L engine spark plugs have been replaced three times and coil pack replaced once. Only misses in a pull

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1 Answer

Tiny

ASEMaster6371

April, 24, 2012 AT 2:15 AM

They could be running too lean causing the overheating of the plugs. Get a shop to monitor fuel delivery and the injector on times as well as the short and long term trims.

Roy

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