Question about 1990 Ford F350

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Won't idle, runs rough under throttle - 1990 Ford F350

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Check all of your tune-up parts. (Distributor Cap, Distributor Rotor, Spark Plugs and Spark Plug Wires) Also perform a compression test if no problem is found with the tune-up parts. Check also for vacuum leaks and the Intake Air Control Valve (IAC) for the "won't idle" problem.

Posted on Apr 10, 2011

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Posted on Jan 02, 2017

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SOURCE: 1995 Jimmy Rough Idle

w/o much more info it sounds like it needs a good tune up plugs wires fuel filter pcv vave throttle bore clean and injecter clean,try to do most of this your self it is costly

Posted on Jan 18, 2009

  • 199 Answers

SOURCE: runs extremly rough at idle runs great at speed

have you checked the pcv valve. a vacuume leak will make your car idel rough too listen arround the throttle body and intake hose for a hiss use a piece of hose @ 2 feet long 1 end in ear other end prod arround to listen for a hissing sound if you hear one plug it up if idle gets better that hose or hole need to be connected to what ever it came off of.

Posted on Jun 26, 2009

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SOURCE: how do you clean a throttle body on 1999 s70?

try this b4 taking things apart... redexe/wynns fuel additive and using high octane fuel the computer will adjust running accordingly...

Posted on Mar 09, 2010

  • 212 Answers

SOURCE: The vehicle idles rough. Also had a few codes

Try cleaning TAC valve, spray throttle body cleaner in upper right of opening clean well.

Posted on Mar 12, 2010

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w/o much more info it sounds like it needs a good tune up plugs wires fuel filter pcv vave throttle bore clean and injecter clean,try to do most of this your self it is costly

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