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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Re: engine ticking already changed the lifters and timing...
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.
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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
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.
This is nothing to really worry about right now, but it is a sign of engine wear. Just be sure to run the proper oil in the engine, and do all the proper maintenance.
Usually a sign of needing an oil change. My Dodge Dakota does the same thing, when I change the oil it goes away. Every couple of oil changes I use kerosene to clean out the gunk, just put kerosene in place of the oil, let the motor run for a minute then drain, replace the oil filter, and fill with oil, then you're good to go.
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.
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
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
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
it very well can be that depending on the severity of the ticking noise, if it sounds like its coming from the top of the engine, place your hand on it only when you first start it up and if you can feel it knocking slightly and if the noise dies away once warmed up id say its your lifter, if its a heavier knocking rather than a ticking and comes from below or bottom end of engine it may be big end bearing, not good. try putting some engine treatment through the engine oil and make sure you run it in as directions state then change the oil and filter and see if that helps :)
does it go tick tick tick tick and when it warms up it stops or goes quiet? its your lifters not getting enough oil when u change your oil it will stop till that oil gets worn out you will have to replace the lifters or it can also be a slack oil pump not pumping oil around the engine like it should