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Old 10-08-2013, 07:43 PM
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lifter tap

on my 14 v6 gc when I cold start the vehicle it sounds like a lifter tap noise,only lasts for about 2-3 seconds,,,,,normal?

I have 2900 miles on it and bought it new,oil is fine
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Old 10-08-2013, 08:19 PM
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Quote:
Originally Posted by jeep5.7 View Post
on my 14 v6 gc when I cold start the vehicle it sounds like a lifter tap noise,only lasts for about 2-3 seconds,,,,,normal? I have 2900 miles on it and bought it new,oil is fine
This past weekend I heard it for the first and only time. Oil change was done 2 wks ago (maybe I should check it, just in case). Mileage is 4300. I was on vacation in the mountains, but it was in a garage for the night. It's always in a garage so not sure sure what that was about. I may remote start it tomorrow and stand near the front and listen
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Old 10-09-2013, 07:56 PM
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Re: lifter tap

ya its been doing it for about 3 weeks now
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Old 10-14-2013, 07:49 PM
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Re: lifter tap

anyone else or is it just us two?
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Old 10-14-2013, 08:31 PM
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Re: lifter tap

Isn't that just the normal sound the engine makes as the oil is pumped through at start-up?
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Old 10-15-2013, 07:37 AM
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Not sure if normal or not. Haven't had it happen on any other vehicle. I cannot hear it from inside the cabin. It was about 50 degrees that night i heard it.
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Old 10-15-2013, 02:06 PM
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Re: lifter tap

Lifter tap is usually caused by hydraulic lifters leaking the oil out of them overnight.

Even if you were down a quart it would not cause the start up tap.

Oil Quality can make a huge difference in WORN lifters.

If you are having Dino oil put in, I'd try Full Synthetic and try a few brands and weights (all within Jeep recommended specs of course).

If they are tapping this early they will be tapping a lot when it gets older.

My old 2002 GC 4.0L developed a tap at 120K miles.

I always ran mobile 1 in it.

I switched to high mileage Mobile 1, same weight and it stopped the tap for like another 50K miles.

Then I switched to Castrol Titanium Edge (Recommended by Dealer), same weight and it stopped the tap until I sold it at 227K. It was very common for the 4.0L to tap after 120K. But I kept it to minimum by upgrading the oil a couple times.

A new car should not tap at all. IMHO.
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Old 10-16-2013, 08:54 PM
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Re: lifter tap

I've had it happen to me twice in our 2014 GC Summit 5.7L with only a couple of thousand miles on it. I was what the heck was that crap. I changed the oil with Castrol Syn Blend, since its a new engine and installed a K&N oil filter. Never had this happen on any of the other 30+ cars I have owned, Ford, Dodge, Chevy BMW, Porsche, Nissan, Subaru, Acura, Kia, VW, Toyota. Not one of these brands has ever done this before, sure hope it doesn't continue. Makes me wonder how long the engine is going to last.
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Old 10-20-2013, 07:33 PM
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Re: lifter tap

its just irritating,now I have 3000 miles on it and it does it periodically,ill wait till 5k when the oil change is due,i have other issues to complain about too lol,such as the rattling door panels with loud music the hatch handle being bowed and I might try the second version off the tranny flash,first helped a lot,ive had 3 other gc Cherokees and no issues like these ,shoulda waited awhile
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