Engine knock

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May 25, 2012 | 08:03 PM

stang23456

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Member

Joined: Mar 2012

Posts: 166

Likes: 0

From: Port Orange,FL

Year: 1999

Model: Cherokee

Engine: 4.0

Engine knock

Would thicker oil compared to thinner oil cause any engine knocks ?

May 25, 2012 | 08:21 PM

VTJeep

CF Veteran

Joined: Jul 2010

Posts: 4,930

Likes: 3

From: 802

Year: 99

Model: Cherokee

Engine: 4.0

Idk.. Seems possible though. More info?

May 25, 2012 | 08:30 PM

stang23456

Thread Starter

Member

Joined: Mar 2012

Posts: 166

Likes: 0

From: Port Orange,FL

Year: 1999

Model: Cherokee

Engine: 4.0

Switched to 15 w 40 and now seems I get a knocking noise at idle at times

May 25, 2012 | 08:51 PM

Littlethunder92

Seasoned Member

Joined: Oct 2010

Posts: 379

Likes: 2

From: Jersey

Year: 1994

Model: Cherokee

Engine: 4.0

ive had the knock for over a year. Sometimes it does it and its so loud you have trouble hearing at a drive through, other times its so quiet you could hear a pin drop. I was thinking piston slap.

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