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