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1999 Ford F-150 Lariat Reg Cab 120

1999 Ford F-150
Trim Info:
Rear Wheel Drive, Reg Cab 6.5' Styleside
15 mpg city / 19 mpg hwy
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November 18, 2013, 11:22 am

Owen S
 

Question: how to get rid of a misfire

it will missfier when on idle. changed plugs and wiers. cleaned air filter. ran dry gas thinkin their was water in the gas.


November 19, 2013, 7:32 pm

Richard W
Expert Mechanic

I would check the coils. Also do a compression test. You could have low compression in one cylinder.


0/1 users found this helpful.

November 21, 2013, 5:20 pm

Owen S
 

found out a egr line off the pvc valve was collapsing when engine was running. changed it stoped misfiring . and idles smother.


1/1 users found this helpful.

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