2008 Liberty Engine Knocking

[cbaker327]

in the past few weeks we have had some items replaced on our Jeep. Water Pump, Serpentine belt, alternator, thermostat, coolant has been flushed and canisters replaced to cure evap code we had. Engine light came back on yesterday morning and now there is a knocking sound in the engine. 3 new codes showing up, all for misfires, p0301, p0303 and p306. Would these by any chance cause the knocking?

Here is a link with video to hear the knocking.

https://youtu.be/ZJtVq-ZGm4w

 

[justjeeps]

I would not run the Jeep that is some sort of metal slap.

It raises concern if that only showed up after having all that work paid for...

Check the oil level.
check all the spark plugs for wear / gap issue and make sure there tight.
check all the coil connections at the connectors.
Maybe make sure the all the air is out with the bleeder on the top rad hose.

good luck...

 

[MTKross]

Sounded like mine. It ended up being a thrown rocker.


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