low power
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J
5.4l low power with WOT
Originally I had P0171, P0174 (Bank 1 & 2 lean fuel mixture). I found the air filter damaged likely causing a dirty MAF sensor. I cleaned MAF and reset the CEL codes. Fuel trims seem better so this might have fixed this but during test driving I found it has little power at ~80% to WOT. If you...- jeffro
- Thread
- 5.4 low power wot
- Replies: 8
- Forum: 1st Gen Ford Expedition Engine & Performance
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B
2003 5.4 2 valve rough idle, hesitation when stepping into it and low power no codew
I have an 03 expy with the 5.4 that has a rough idle, low power (0-30 in 20 seconds) and no codes I replaced the oxygen sensors, MAF sensor and the throttle position sensor. Could this be timing or is it IAC? Is it something else?- bydptrsb
- Thread
- low power no codes rough idle
- Replies: 6
- Forum: 2nd Gen Ford Expedition General Discussion
