Mechanics

98 GC 4.0, ROUGH IRRATIC IDLE POPS BACK INTO THROTTLE BODY.

1998 Jeep Grand Cherokee • 130 miles

Idles really low and jumps around stays near 500 but will surge up, pops back into throttle body, Jeep is shaky and low on power, #1 plug was wet looking rest were white, NO CEL's.
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Brdsmith15
March 10, 2012.



Bad injector maybe?

Tiny
Fixitmr
Mar 10, 2012.