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Ford f150 fast idle sensor - Cars & Trucks

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I think you are referring to the IAC valve (Idle Air Control). If you wanted to know what it was called, I hope that helps. If not please write back and I'll try again. Please be specific and detailed, thank you.

Posted on Mar 09, 2014

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Posted on Jan 02, 2017

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  • 116 Answers

SOURCE: 87 Ford F150 idles too fast

either a vacuum leak or an idle air control valve problem most likely.the iac is on the side of the throttle body.cylinder shaped with a small harness.

Posted on Jun 12, 2009

  • 171 Answers

SOURCE: 1985 ford F150 is running very rich. (choke is

When you say it's destroying the air filter---do you mean it's all sooted up ?? I am assuming that what you mean.
Try disconnecting the vacuum line at the egr valve and see if that helps.
But it sounds more like a plugged up exhaust system.Try disconnecting or looosing the flange before the cataylic convertor and then see how it runs.

Posted on Nov 20, 2009

  • 198 Answers

SOURCE: 1987 F150 302. No trouble codes but engine idles too fast

The IAC (idle air control) may be stuck from dirt or malfunctioning.It's located in the intake near the throttle body.Remove it clean with carb cleaner and reinstall

Posted on Nov 23, 2009

Testimonial: "Thank you for response. Actually had IAC off and was clean inside. Resistance within range 9 ohms but voltage signal at 12.5 V rather than 10.5 V"

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1987 F150 302. No trouble codes but engine idles too fast


The IAC (idle air control) may be stuck from dirt or malfunctioning.It's located in the intake near the throttle body.Remove it clean with carb cleaner and reinstall

Nov 23, 2009 | 1987 Ford F 150

1 Answer

1985 ford F150 is running very rich. (choke is


When you say it's destroying the air filter---do you mean it's all sooted up ?? I am assuming that what you mean.
Try disconnecting the vacuum line at the egr valve and see if that helps.
But it sounds more like a plugged up exhaust system.Try disconnecting or looosing the flange before the cataylic convertor and then see how it runs.

Nov 20, 2009 | 1985 Ford F150

1 Answer

87 Ford F150 idles too fast


either a vacuum leak or an idle air control valve problem most likely.the iac is on the side of the throttle body.cylinder shaped with a small harness.

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check you throttle positioning sensor, also check your mass air flow sensor, by unplugging while your motor is running if idle returns to normal that may be the prob. hope i could help

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I have a 1990 ford F150 with the 5.0 302 in it. For the past 3 months its bin idleing at about 2000rpm's and above but settles down some times. It also slames into drive and reverse. Now All the suttin the...


first of all have a nice day,in my own experience i think you need to check your idle sensor because this sensor can create also a unstable idling.

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