misfire only from idle to 2500 rpm | Ford Explorer Forums - Serious Explorations

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misfire only from idle to 2500 rpm

Chasethexplorer

Well-Known Member
Joined
May 12, 2009
Messages
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City, State
Austin, Texas
Year, Model & Trim Level
99 Explorer Sport
I have had this misfire that isnt real noticeable except at idle, it is on the passenger side for sure, I have dual straight pipes and I can feel it on the passenger side exhaust only. If I rev the engine it misfires up until 2500 to 3000 rpm then goes away after that. I have recently changed plugs and wires, done the intake gaskets, maf. Does that pretty much narrow it down to injectors? Should I just grab some from the junkyard with lower miles, (210,000 on mine), and see if that works. SOHC.


Thanks, Chase
 






That sounds like O2 sensors. i would check them.
 






oh ok I figured since it was only on one side it had to be like an injector or something only effecting the passenger side, I will go ahead and give that a try, Thanks.

Chase
 






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