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lamontgomery, Ford Mechanic
Category: Ford
Satisfied Customers: 467
Experience:  14 years experience, 2000-2006 Senior Master, ASE master in Truck and Auto, Level 1 Fire mechanic
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2001 ford expedition: 4.6 service engine soon light on..light goes

Resolved Question:

2001 ford expedition, 4.6 service engine soon light on. have disconnected battery and let set, light goes off but comes back in a short time.
Submitted: 9 years ago.
Category: Ford
Expert:  lamontgomery replied 9 years ago.
You'll need to have the codes checked in the engine computer. This is considered a hard fault. The powertrain control module (PCM) monitors all the circuits for the sensors and actuators on the engine and transmission. Just about any fault it detects can set the light on. You can try Autozone to retrieve the code for you, they will usually do it for free.
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