Question about 1999 Ford Expedition

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97 ford expedition will cut off some times in idle . i have changed egr valve , plugs , wires . it was skipping under strain thats why i had to change egr valve . seem to be running better but now want to cut off when in gear at idle . could it be idle sensor

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Check/replace the idle air control valve.

Posted on Mar 21, 2011

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SOURCE: 97 ford expedition cutting off

pull wire off # 2 see if idle changes if not there s no spark... test coil....test all vacuum lines for leaks also. if all good then idle speed sensor.

Posted on Mar 20, 2011

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2008 ford expedition, its chugging at all different speeds even idles funny some times. It happens very sporadically, its very slight but noticeable.


Replace/check plugs wires and coils. Helps to use a spark plug tester to isolate a misfire. Next check/clean/ and replace maf sensor, idle control valve, and egr tube/valve.

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97 ford expedition cutting off at idle . it was skipping and hesitating under strain . had it checked by a computer and it said egr valve and number 6 cylinder misfire . i changed egr valve , plugs, wires...


pull wire off # 2 see if idle changes if not there s no spark... test coil....test all vacuum lines for leaks also. if all good then idle speed sensor.

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My 2001 Ford Expedition just had it's spark plug changed. The mechanic says he had to take the intake manifold off and therefore replaced the gasket. Since then, my truck runs horrible! It actually idles...


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