Question about 2002 Jeep Liberty

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Engine ticking already changed the lifters and timing chains

Put new heads and valve job, tick goes away under acelleration. NOT low on oil runs good, compression is good, dose'nt burn oil it is a 2002, 3.7 L V6, 116,000, ticked for a good 20 k and no engine problems

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  • ekim_nroht Jan 23, 2009

    yes every thing done to it was done to fix the ticking

  • ekim_nroht Jan 23, 2009

    oil pressure is good injectors are good makes loud tick like a lifter is bad is not there when acel

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Check your belt tensioners.
If you can get a stethoscope, that would better help you pinpoint the noise.
Some lifters are naturally noisy at idle. Don't know if the Jeeps are or not. But check the tensioners first.

Posted on Jan 23, 2009

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Have you checked your oil pressure ...and discounted the possiblilty that the ticking is your fuel injectors

Robert

Posted on Jan 23, 2009

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Have you taken it back to the shop that did the repair job to see if they adjusted the rockers properly and at the right clearance?

Posted on Jan 23, 2009

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1 Answer

What is ticking noise from passenger side of motor?


Michael, check your engines oil level right away, low or dirty oil is the main cause. Other things that can cause this issue could be worn or dirty cam lifters or tappets, exhaust leak, loose worn timing chain, possible EGR valve cracked or leaking at base, bad belt or tension er, the list could go on. PRESS THE HELPFUL BUTTON and check links below

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The 'light tick' is most probably a valve lifter. The valve lifters in the engine are hydraulic, and are pressurized by the engine's oil pump.
When the engine gets some mileage, say 60 or 70 thousand miles or more, the engine is just not as tight as it once was. What happens is that the lifter loses its pressure when the engine is not running, because there is some wear. When you start the engine, the lifter takes a few moments to pressurize, and makers a ticking noise until it does. The 'ticking' is the sound of the valve being hit by the push rod, which is being pushed by the lifter. Once the lifter is pressurized, the 'ticking' sound stops. This is a very common thing for engines, it will eventually happen to nearly every one.
Sometimes, thin, old oil can cause this. If you have not changed the oil/filter in a while, you should do it now.

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Makes like a ticking or light knocking noise at start up, whether it's hot or cold outside. I usually let the truck idle for a while and it goes away.


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Engine ticking, The engine has a tick in it sounds like a lifter possibly. The car has 208000 miles on it.


SOUND LIKE WORN LIFTERS OR DIRT TRAPPED LIFTERS.YOU CAN TRY CHANGE ENGINE OIL AND FILTER.YOU CAN PUT A BOTTLE OF LIFTER QUIETNER.BLEND SOME IN CRANKCASE DONT OVERFILL.IT WILL CLEAN AND FREE UP LIFTERS.IF LIFTERS STILL NOISEY.YOU HAVE TO REPLACE CAMSHAFT + LIFTERS + BEARINGS DEPEND ON HOW BAD WORN.

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you need to give us more info about your car, based on your info i would say one of your valve lifters is bleeding off pressure when the engine is off, you can try putting 1/2 qt. of automatic transmission fluid in your engine oil, atf is a good cleaning agent and may clean your lifters up. i have done it many times

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HAVE YOU CHANGED OIL REGULARLY?WHAT ENGINE?4.7L:YOU MAY HAVE A STICKY LIFTER OR A TIMING CHAIN TENSIONER ISSUE..I WOULD CHANGE THE OIL AND FILTER AND PUT SOME ADDITIVE IN ENGINE(LUCAS SEEMS TO WORK)
5.7L:LIFTER OR SOME PISTON SLAP..LET ME KNOW WHAT ENGINE IS IN VEHICLE AND SOME MORE INFO WOULD BE GOOD

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if this vehicle has a high millage then you have worn bearing if the oil pressure go's to low then this would be the problem, if not then you should have your lifters replaced but check oil pressure if the noise comes back when the oil pressure drops then you need to over haul your engine. if this information has been useful please let use know good luck

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