1990 Ford F-250 engine

TUNA25

MEMBER
1990 FORD F-250
5.8L
V8
2WD
AUTOMATIC
140,000 MILES

My truck will start but will not idle. I have fix vacuum lines and check the throttle cable. But I am wanting to know if it is a sensor and which one

Sunday, March 29th, 2015 AT 4:54 PM

1 Reply

JACOBANDNICKOLAS

MECHANIC
108,192 POSTS

If there are no vacuum leaks and everything is in good condition, check the idle air control valve (IAC). It is responsible for maintaining the engine idle speed.

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1990 Ford F-250 engine

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