'89 XJ with idle problems
06-14-2009, 05:02 PM
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Year: 1989
Model: Cherokee
Engine: 4.0l
'89 XJ with idle problems
I've got an '89 XJ that suddenly, while on the freeway, letting off the gas, started shaking horribly like the timing was off or it was missing. As soon as I give it gas it smooths out and is fine. Now, it continues this even from a cold start. It starts fine, shakes like mad and subsides only when I get the RPMs up to around 1500. Could this be MAP sensor? I've replaced cap and rotor/wires/etc. thinking that it was misfiring but smoothed out at higher RPMs but nothing so far.
-W
-W
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