2002 Ford Explorer No power

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2002 FORD EXPLORER

Engine Performance problem
2002 Ford Explorer 6 cyl Four Wheel Drive Automatic 110 k miles

My Explorer lacks power. It was running fine even though it had a intermitten P1151 code. It starts and idles fine but lacks power especially going up hills. I have changed the MAF sensor and the OS2 sensor located before the catalytic converter. I do not have any error codes at this time. Could I have a clogged fuel filter?

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RACEFAN966

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Ok to answer your question yes it could be a plugged fuel filter and if it has been a long time sense you have changed it last then it could probably use it anyway. Now it could also be a TPS or a cat plugging up or? Have you checked anything as of yet like fuel pressure and exhaust flow? Have you run a test on the tps? Let me know what you have done and we will do a couple of tests you will need to have a digital multi meter to do some of the tests.

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Friday, August 7th, 2009 AT 12:37 PM

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I just changed the gas filter, plugs and plug wires but still lack of power under a load(up a hill, starting from a stop sign, etc). L checked the TPS and it reads.94vdc at idle, 4.6 vdc at full throttle. Is that too high?
I, m wondering about the cat converter, I've noticed that the temp at the exhaust pipe is a lot hotter than my 2005 Explorer. I'm only gauging temp with my hand so take that what its worth. It still has no error codes.

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Friday, August 7th, 2009 AT 4:42 PM

RACEFAN966

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Ok with the added info I would say yes it could be the cat. Call around and see if there is an exhaust shop that could do a flow check to see if the exhaust may be pluged.

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Monday, August 10th, 2009 AT 11:29 AM