Dear Doug,

The vibration is constant. However I can feel it more at the low RPM.
Before it was worse. After I changed the spark plugs it is not so
sensible, but it is there.


DougW wrote:
> orlin wrote:
> > Greetings,
> >
> > Marry Christmas to everybody!
> >
> > Cherokee 1999 Laredo
> >
> > There is very slight vibration of the engine. I changed the spark
> > plugs. It didn't help a lot. The tester in the service did not show
> > anything. What else could be the problem?
>
> At what RPM? If the vibration is at idle it could be a dirty throttle
> body or idle air passage/stepper. A spray with throttle body cleaner
> will fix that.
>
> How do the motor mounts look?
> http://revbeergoggles.com/motormount/
>
> --
> DougW