Idle issues

Tiny
PRECIOUS36
  • MEMBER
  • 2002 FORD EXPLORER SPORT TRAC
  • AUTOMATIC
  • 229,459 MILES
I came home from work fine, I try to leave 15 minutes later I started my SUV and it automatically stalled. Then it did the same thing, then I try it again. It stayed cranked for a minute, but it was idle high then low then stalled out in park. So I went outside to try it again in 15 minutes and it cranked fine let it run in park for 15 minutes in park and it was fine.
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Saturday, June 27th, 2020 AT 7:19 PM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

This could be the result of a couple things. First, an engine vacuum leak can cause this to happen. However, since it started and ran good the last time, I don't think that is it. Next is a component called an idle air control valve (IAC). The IAC is located on the throttle body and it's job is to maintain the engine idle speed. It's possible it is going bad or dirt and carbon are building up causing an issue.

Here are two links you may find of interest. The first explains how to service the idle air control valve. The second explains in general how one is replaced.

https://www.2carpros.com/articles/idle-air-control-valve-service

https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac

Here are directions specific to your vehicle for replacement. The two attached pics correlate with these directions.

___________________________________

2002 Ford Truck Explorer Sport Trac 4WD V6-4.0L VIN E
Procedures
Vehicle Powertrain Management Fuel Delivery and Air Induction Idle Speed/Throttle Actuator - Electronic Service and Repair Procedures
PROCEDURES
REMOVAL

pic 1

1. Remove the accelerator control snow shield.

pic 2

2. Disconnect the electrical connector, and remove the bolts and the Idle Air Control (IAC) valve.

INSTALLATION
1. To install, reverse the removal procedure.

___________________________________

Let me know what you find or if you have other questions.

Take care,
Joe
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Saturday, June 27th, 2020 AT 8:15 PM

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