Hello Everyone!

i am Re-posting this because i have new data.

I have a 2000 Cherokee 39k mils, just replaced the head gasket.
the problem that i am having now was their before i replace the Head Gasket.
when i turn the car on the engine vibrates and the Check Engine Light came on. P0300 p00303, and p0305, but when i changed the head gasket i also replaced the plugs and the ignition coil.
however it still has the problem


What could it be?

Thanks

 

check and see if it is backfiring through the throttlebody, if it is than its your cam, i just had the exact same problem and my intake lobe on #5 cyl was worn down .190" and the lifter was concave on the bottom almost .250"

 

what did you have to replace?