stalls when engine is cold

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Nov 12, 2005 | 03:13 PM

sealka

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stalls when engine is cold

I have a 93 bronco 5.0, Have promblems with keeping it idleing when cold. The chock will come on for about 30 seconds, and It will shut off if I do not give it a little gas. Once the motor is warmed up it will idle fine, at about 800 rpms. Could it be the throttle position sensor or the idle air control.

Nov 12, 2005 | 08:59 PM

Greezy

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I have this same issue with my 87'. Let me know what you find. EGR perhaps?

Nov 12, 2005 | 10:49 PM

greystreak92

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From: Gateway to the West

Start by cleaning the IAC with a good throttle body cleaner. IF that does nothing for you pull the codes. It sounds like the IAC has failed but you can pull the codes to be certain. Once you have the KOEO and KOER test results (Codes) you will be able to pinpoint the problem much better than if you start by guessing. ANY situation that has caused the engine to shut down will trigger an error code of some kind. If you need info on how to pull them check your Haynes manual or www.fordfuelinjection.com

If you need help interpreting or discerning just what the "fix" for each code should be, let us know. We can certainly help there.

Nov 13, 2005 | 05:14 PM

54Guy

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From: North Central Washington

Have a similar problem just starting with my '89 with the 5.8 engine.

Nov 15, 2005 | 03:41 PM

sealka

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I Cleaned the throttlebody and the idle air control with throttlebody cleaner, it seems to be idleing fine now. It idles at a 1000 rpms, with no hesitation.

Nov 15, 2005 | 03:45 PM

sealka

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I cleaned the throttlebody and idle air control with "CRC" brand throttle body cleaner. That seems to work, it idles fine at 1000 rpm and does not shut off.