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#1
05-16-2007, 11:54 AM
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1992 Cherokee, Engine knock
Hello all I have read alot of post here on this sight aboubt engine knocks but I think I may have a different problem. here goes..
I went ahead and bought the 92 cherokee, 4.0 litre auto,(approx 150,000 miles) I had mentioned that I was going to swap out the engine with a 93 model. When I went to look at and purchase the 92 the lady said it had a ROD KNOCK, I started the XJ it made a slight to moderate clacking or knocking noise but stopped after starting. I drove the XJ home Aprox 15 miles no noise whatsoever on acceleration or deceleration. It does blow smoke when sitting for a minute or two. could this just be a bent or cracked push rod? has anyone encountered this before? thanks everybody. 
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#2
05-24-2007, 03:48 PM
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Re: 1992 Cherokee, Engine knock
"piston slap" maybe? that's common.
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#3
05-24-2007, 06:14 PM
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Re: 1992 Cherokee, Engine knock
If I remember right, a rod knock would change in frequency according to engine RPM's but does not normally go away until repaired, although it may sound likes it comes and goes.
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