Lack of Mid Range Response for 3.9L
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1st Gear
Joined: Jan 2007
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Lack of Mid Range Response for 3.9L
I have a 3.9L in my collection with about 120,000 miles on the clock. I seem to be getting decent response in the lower and upper RPM ranges but the mid-range is very sluggish. Does anyone have any similar experiences and/or solutions?
Thank you...
Thank you...
Administrator
Joined: Apr 2006
Posts: 25,707
Likes: 107
From: Denver, Colorado
RE: Lack of Mid Range Response for 3.9L
What sort of tune related work has been done on your engine in the last years, have you replaced the spark plug wires, how about the O2 sensors.
What gas octane are you running, have you ever de-carboned the engine?
Mike
What gas octane are you running, have you ever de-carboned the engine?
Mike
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