97 4.0 runs crappy until warmed up


niterider

15+ Year Member

Joined
Feb 7, 2009
Messages
25
Points
3,101
City
tewksbury, ma
Vehicle Year
1996
Transmission
Automatic
its like its carbeurated until its warms up. never seen a fuel injecte engine run like this. it stumbles & stutters until it warms up. runs good after that. its got 44k original on it.:dunno:
 
bad intake air temperature sensor possibly, their cheap, try it
 
is that the iac sensor?

my last bronco II had a carbeurator. not used to this engine an its idiosyncrisies yet.
 
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