Shakes or Wobbles problem
1998 Other Jeep Models V8 Four Wheel Drive Automatic 84000 miles
I own a 98 Grand Cherokee w/ the 5.9L. Out of nowhere it started vibrating really bad throughout the rpm range. So I replaced both motor mounts and my transmission mount. This helped my problem big time as they were worn, but she still shakes at idle and only idle. I replaced cap, rotor, plugs, and wires--no help, also double checked firing order, all is good. I did a vacuum test and at idle I get a steady 17 inhg. I did a compression test and all cylinders read 150 to 160 psi. I used a stethoscope on the wiring to each injector and I could hear each one happily clicking away. I did a light cleaning of the throttle body and cleaned off the carbon on the IAC.
If you have any other ideas as to what could be causing my problem it would be extremely appreciated!
Thursday, May 7th, 2009 AT 9:24 PM