The Wrench Symbol is the Powertrain malfunction indicator: When this symbol comes on it means that the powertrain control module (PCM for short) has detected a problem in the powertrain (engine, transmission AWD), in you case it seems to be the engine that has problem. The number of problems that turns this light on is not cut and dry, it can be any number of things that have malfunctioned. What must be done now is to the the system scanned for fault codes, a fault code or codes is stored for the problem when this light came on or in your case comes on. It is likely this problem is covered under the emission system warranty if you have less than 70,000 miles on the truck.
SOURCE: 1997 ford explorer 4.0 still runs rough after
It could be many other things. Have you changed the air filter? I could be extremely dirty or it could even be a vacuum leak that is making it run rough. Is there a check engine light on? If so that could help find the problem. If it's not something that simple you would need to start looking to see if all cylinders have the correct compression because it could be a blown head gasket or some other internal engine problems. Let me know if you have any further questions. Thanks for using FixYa!
Testimonial: "thank you.. and yes the engine light is on and flashs sometimes.. the code read that i had 4 misfires before i changed the plugs and wires & coil "
SOURCE: exhaust blows black on ford explorer
look for a vacume leak. black smoke means it is running very rich
SOURCE: Rough Ideal on 2004 Ford Explorer
Open hood and listen for vacuum leak sound. pcv hose is most likley cause.
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/terry_db4da071b7da3ac1
SOURCE: locating the ecm on 2000 ford explorer 4x4 4.o sohc
the ecm is usually located behind the passanger kick panel on the fords
hope this helps you out
Please see my tip at http://www.fixya.com/cars/r5932051-check_engine_light_check. These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.
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