How Common?

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02-11-2010, 11:25 AM

hdhp

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Location: Michigan

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Model: Cherokee

How Common?

I just bought a 1992 XJ 4.0 HO auto with 176K miles. Sometimes when I start it up I hear lifter noise. It will go away in 2-3 min and sometimes 5min. I have good oil psi...65psi cold and 40psi hot. The PO was using 15W40 Amsoil w/ amsoil EA filter. Temp outside is 20-30 deg F. Is this common with the lifter noise and should I put 10W40 in it?

Thanks CF

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02-11-2010, 11:32 AM

builtnotbought89'

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Year: 1989 2 door

Model: Cherokee

Engine: 4.0

sounds like normal start up, just a few seconds until ur 02 sensor can start reading! As for the oil I've always used 10w 40 in my XJ...

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02-11-2010, 07:53 PM

joe bob

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Year: 91

Model: Cherokee

Engine: 5.9

Thats not normal at all, every jeep I ever had made lifter noise all the time.

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02-12-2010, 05:49 AM

hdhp

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Model: Cherokee

OK thanks guys! This morning had some noise when I first started it. Went inside to get ready for work. When I came out noise was still there. When I touched the door handel to open the door the noise stoped!
I must have the "Magic Touch!"