Revs up and down problems
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Revolutions go up and down
Ford F-150 2008 190581 miles
It starts normally and after a while the revolutions go up and down until it stabilizes again. Like 20 minutes afterwards it starts doing the same until it shuts off. The throttle body was cleaned, the spark plugs and cables were changed, but it does the same until shutting off.
4 reports
ER
New plugs, wires, maf, intake temp sen, throttle body cleaned. Going crazy cause no one ever post the solution 94 ford taurass sho yamaha 3.0 v6 115k. Only when the heater or ac is on does it go up to 1500 back down to 800 constantly
Vote helpful
CommentI have a misfire
Ford F-150 2007 5.4 Triton 20000000 miles
It revs up and down
Between 2000 rpms and a 1000 rpms
Between 2000 rpms and a 1000 rpms
1 report
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