high idle

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Aug 31, 2006 | 07:45 AM

dubbz

Thread Starter

Junior User

Joined: Jul 2005

Posts: 50

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high idle

1998 mazda b2500 2.5 engine goes to a high idle when i clutch in to shift. it settles down after a few seconds. it does this warm or cold but does not produce a check engine light. any help appreciated.

Aug 31, 2006 | 08:37 AM

Madmike33

Elder User

Joined: Apr 2004

Posts: 748

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From: North US Border, Canada

Does the skinny pedal come back completely? If so It could be the throttle positioning sensor (TPS) It could just be sticky, or not reading properly... I've seen this happen without giving a Check Engine Light.

Madmike33

Aug 31, 2006 | 07:30 PM

Tiggie

Laughing Gas

Joined: Jul 2002

Posts: 765

Likes: 11

From: Moneta, VA

What do you mean by high idle? 900-1100ish rpms? Ford programmed these trucks to maintain a higher idle until the speed drops below 5mph.

Aug 31, 2006 | 09:09 PM

Hank85713

Cargo Master

Joined: Feb 2002

Posts: 2,414

Likes: 22

From: Tucson USA

could be a dirty or BAD IAF on the intake. Check the archives on how to clean, replace. Mine is bad and I just disconnected (94 4.0) runs fine without it.