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89 bronco ll idle racing


russred89

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just purchased bronco with 2.9 v6 when driving some times when I stop idle rev up to 3 grand on tach vehicle is manual
 


duffy

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1989
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Ford Bronco II
Throttle position sensor perhaps.......or maybe an ECM water temp sensor. Could be a number of things.
 

russred89

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alwaysFlOoReD

Blang - not bling
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Location
Red Deer, Canada
Vehicle Year
'91, '93, '98
Vehicle
Various
Engine Size
4.0, 4.0, 4.6
Suspension Style
4wd
Maybe IAC (idle air control) is sticking.
 

russred89

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JerryC

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Aside from the good suggestions above, I'll go with the simple things. Check your floor mat. Check that your throttle cable isn't binding and that the return springs are good.
Check/clean the throttle body.
 

1br9on8co7II

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1987
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Mine idles at 400 when sitting. Warms up right. I am the opposite of yours. Still haven't figured mine out yet ?
 

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