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High idle during Offroad activities


birddog321

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Jun 20, 2010
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381
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Location
Buford, GA
Vehicle Year
1989
Make / Model
Ford
Engine Size
2.9
Transmission
Automatic
I took the fam out on an excursion this afternoon and noticed that my B2 starts to idle at around 2500-3000 RPM(No Tach)as soon as I hit the dirt. But if I restart the engine it runs normally until I hit a rough spot. This isn't the first time I've noticed this and was wondering if anyone else has encountered this.
 


voodoochylde

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Mar 31, 2010
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Location
Rainelle, WV
Vehicle Year
1986
Make / Model
Ford
Engine Size
2.9l
Transmission
Automatic
That seems bit odd. Vacuum leak? How's your IAC?
 

birddog321

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Messages
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Location
Buford, GA
Vehicle Year
1989
Make / Model
Ford
Engine Size
2.9
Transmission
Automatic
Mine engine is carbed, so i don't think i have IAC
 

basilfaulty

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Jan 25, 2011
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1999
Make / Model
Ford
Transmission
Automatic
Mine engine is carbed, so i don't think i have IAC
Probably due to fuel slosh in the bowl...splashes out and down the throat of the carb. If you sit still for a few minutes does it go away again?
 

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