Reference Troubleshoot Iac Idle Problems 1996-2004

idle IAC TPS

  1. wmburns

    wmburns SN Certified Technician

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    wmburns submitted a new resource:

    Troubleshoot IAC idle problems 1996-2004 (version 1.0) - idle IAC TPS

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  2. Noobz347

    Noobz347 Stangnet Facilities Maint Tech... Er... Janitor Admin Dude

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    Nice write-up. I might suggest pictures for folks who may not know component ID and locations.
  3. Mustang_Modder

    Mustang_Modder New Member

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    I need some help: I have a 99 GT, 4.6 liter engine. Everything is absolutely original, except for accel coil packs. Whenever I coast in neutral the engine will sputter, try and regain it's Idle, then just dies. When I am just sitting there and havent touched the Throttle, the car typically does fine. But if I rev it ANY, the car will try and regain it's idle and eventually floods out. Okay, The catch:

    I installed a brand new IAC Valve and I noticed a better start up - a not so "forced" start up (stubborn 4.6). Do I need to replace my MAF sensor? TPS? O2 Sensor? I have been dealing with this for about two weeks and I'm tired of risking a wreck on decelerating into turns. Also, I've heard lots of things as far as bad connections on certain electronics, if I put the dielectric grease on all my contacts (literally everything from censors, to fuses) would it make a difference?

    At this point I would appreciate anyone's help.

    Sincerely,
    -Confused Teenager

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