Valve ticking
02-05-2013, 11:36 AM
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Year: 1991
Model: Cherokee
Engine: 4.0 i6
Valve ticking
What can I do about valve ticking? A valve is ticking pretty badly when I'm on an upward slope and when it's in gear and when I hit the gas. I don't know where to start. I've never had encountered a problem like this so anything will help.
02-05-2013, 11:50 AM
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Year: 1999
Model: Cherokee
Engine: 4.0 I6
if its just valve noise
5 quarts or oil, with 1 quart of marvel mystery oil....run it for about 500 miles should clear it up
after 500 miles change oil back to whatever you were using. Make sure you use a good filter (mopar, purolator gold or napa gold)
02-05-2013, 03:22 PM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
A lifter/valve noise will not change because of a load. a piston or rod bearing can though.
02-05-2013, 04:46 PM
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Year: 1990
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02-05-2013, 05:15 PM
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I also have the same ticking to which everyone replys IS the "jeep thing" that jeep is referring to.lol ccken,how do I determine which cylinder/plug to inspect? Usually at idol shes quiet,under a load however its usually very present.
02-05-2013, 07:14 PM
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Year: 1991
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02-05-2013, 07:24 PM
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Year: 1998
Model: Cherokee
Engine: 4.0L HO
An exhaust leak (hairline crack, maybe a gasket) can sound like a tick. It can also be more prominent under acceleration and virtually unnoticeable while decelerating. Gotta get underneath and start looking/inspecting with a good flashlight.
02-06-2013, 05:42 PM
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Year: 1991
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Would you suggest against welding a crack shut?
02-06-2013, 05:44 PM
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Lol sounds like a plan,not sure what's in there from the previous owner since its fairly recently purchased.what wud most agree is the best plug to use? Also upon inspecting the plugs what signs of wear shuld I b looking for to determine which cylinders are ok and what makes my jeep tick...so to speak