2008 Liberty Engine Knocking - Jeep Garage - Jeep Forum

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Old 01-31-2017, 02:07 PM
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2008 Liberty Engine Knocking

Below is a video link of a quick clip with the engine knocking. Recently I have had the following replaced, water pump, alternator, serpentine belt, thermostat, had some evap codes and those were fixed as well. Engine had sounded fine since. This morning woke up and started the jeep and was making a new noise and check engine light on. Any suggestions or thought's as to what he might be?

https://youtu.be/ZJtVq-ZGm4w

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Old 01-31-2017, 02:14 PM
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Re: 2008 Liberty Engine Knocking

Sounds quite bad. Since waterpump was changed recently, i would remove the serpentine belt on a cold engine and run it for a short time without the belt, just to check if the noise is still there or not. Donīt run it more then 20 seconds or so, to prevent local heating of the coolant, since it wonīt circulate without the belt installed.
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Old 02-01-2017, 07:01 AM
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Checked this morning still knocking. Also did check and have 3 emgine codes, p0301, p0303 and p0306. All are cylinder misfires but don't think they would cause the knocking.
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Old 02-01-2017, 11:20 AM
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Re: 2008 Liberty Engine Knocking

Quote:
Originally Posted by cbaker327 View Post
Below is a video link of a quick clip with the engine knocking. Recently I have had the following replaced, water pump, alternator, serpentine belt, thermostat, had some evap codes and those were fixed as well. Engine had sounded fine since. This morning woke up and started the jeep and was making a new noise and check engine light on. Any suggestions or thought's as to what he might be?

https://youtu.be/ZJtVq-ZGm4w
Hi cbaker327,

Sorry to hear about this! If you decide to visit your local dealership for further diagnosis I'd be happy to follow up with them for you if needed. Just PM our page with your VIN and let me know.

Andrea
Jeep Social Care Specialist
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