Question about Ford F-150

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1987 Chevy 1 ton 350 V8 After a little while of idle (Perfectly) It'll rev its self up all by it's self and Idle at a higher Rpm

350 v8 throttle body injection 1987 4x4 Sat for 4-5 years Been on Beach all it's life

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  • Bill Boyd Jan 10, 2013

    My son had something like this on a v8 camero. Check to see if there is some sort of speed sensor connected to the tacho and thet the connection is clean and tight

  • dld541
    dld541 Jan 17, 2013

    Thanks but that was no help unfortunatly

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  • Ford Master
  • 46,580 Answers

Check for leak at base of carby. It sounds like the idle mixture is leaning out. check for corrosion at gaskets or loose carby body

Posted on Jan 08, 2013

  • dld541
    dld541 Jan 09, 2013

    It has Throttle Body Injection. That's why im wondering why it's Reving itself from like an idle to around 2 grand and its all electronicly injected and such. itd be much easier if it had a Carb.

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Posted on Jan 02, 2017

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  • 2 Answers

SOURCE: Erratic idle and surging . Throttle body jamming

Check for vacuum leaks, broken vacuum hoses, etc to start.

Posted on May 11, 2009

GregV24CHOPP
  • 11 Answers

SOURCE: when cold, it idles rough, revs high then low! After warmed up it runs fine

if it runs high when you first start it then mellows out,, theirs no problem , all of our chevys do that.... but if its sputtering or you hear a quiet popping noise check spark plugs

Posted on May 20, 2009

samtoler
  • 666 Answers

SOURCE: 1991 Chevy Caprice, V8 5.0L, throttle body

tune up is likely what you need from description

Posted on Jun 15, 2010

Testimonial: "thanks for replying, thats what I thought too, but I have another question, I just added more comments to the prior comments, please read. thanks again. "

csmock132
  • 4669 Answers

SOURCE: 1990 chevy blazer 350 ci throttle body fuel

Sounds like you have an injector leaking. Have someone just cycle the key on and off to run the fuel pump but don't crank the engine. If you see fuel dripping from the injectors, unbolt the injector cover on the throttle body, remove the injectors and replace the orings around the injectors.

Posted on Jul 22, 2010

alicantecoli
  • 22265 Answers

SOURCE: Engine idle problem. Range Rover 4.6 HSE 1998 Have

sorry but you have tried everything i would have done except that i would have checked the engine breather pipes for deterioation like perished or soft and collapsing .you would be surprised how often this is the main cause of this sort of problem

Posted on Aug 21, 2010

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