Question about Cars & Trucks
Idles with out map sensor vacuum line then drop into gear then dies
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Posted on Jan 02, 2017
This could be a number of things but i think that your problem sounds like a vacuum leak or an EGR problem. Try listening for leaks and try un-plugging the EGR solenoid valve one time.
Posted on Apr 17, 2009
Sounds like the catalytic converter or muffler are clogged. There isn't much exhaust at idle, but when you accelerate your exhaust volume increases, thus if your catalytic converter or muffler are clogged the restrict the exhaust escaping out thus causing an excess of back pressure which won't allow the engine to breathe normally.
Posted on Jul 16, 2009
If it is the same engine design as the F-150 ( think the '98 was still the 2V V-8 ) it could be the IAC ( Idle Air Control ) is gummed up.
The F-150 it is mounted on the back of the Throttle Body ( have to take off the plastic throttle body cover to see it ), held on with 2 bolts with 8mm heads ( could be 9mm ??).
Worth taking a look, also take a look at the VAC line to the back of the throttle body, and check that the IAC connector did not get unplugged or the wires damaged from the other vac line change
Posted on Dec 03, 2009
Testimonial: "Will do today and respond back, I have spoken to a few Ford guys, clean the T.B., check the IAC, etc. Thanks so much!"
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