Question about 1999 Ford F150 Regular Cab
My f150 will cut on and the rpms will go to about 600 and then drop to 400 and when i rev it up it will be fine then the rpms will drop until it cuts off. It usually idles at 900 rpms and is fine but the past couple days it has been cutting off on me until i drive it for a few minutes and then it is fine. I dont know if its a vacuum leak or what, i really have no idea.
I would check the idle air control valve, also you might have a bad coolant tempuature sensor, I would also check the air filter and repalce the fuel filter, if it hasn't been changed.
Posted on Jul 14, 2010
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Posted on Jan 02, 2017
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