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Old 12-14-2012, 06:58 AM   #1
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Engine tickin

Ive had this engine tick around 1500-2000 rpm for about a month now and finally took it to the dealership to get it looked at. They called me today and told me it could be one of two things. 1 worn camshaft lobes and they would have to replace camshaft lifters and check out the head. 2 piston slap he said not likely but he wanted to tell me that just incase i did camshaft swap and it didnt fix problem has anybody on here had a similar problem and the camshaft replacement fixed it. And is there anything else i should get replaced while they are in there. If i get the cam swapped out should i run a different oil to stop this from happening again or was it just a bad batch of cams from factory.
I have a 06 lj rubicon 6 speed and 56780 miles

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Old 12-14-2012, 12:37 PM   #2
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Does your only tick when it's cold? We have the exact same Jeep (even same color), only mine has 10,000 more miles. Mine started ticking when the weather turned colder and ticks on a cold start until it's up to temp. Does your tick all the time or under similar circumstances?

How much is it to replace camshaft lifters? Let us know how it turns out if you get this fixed.

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Old 12-14-2012, 12:42 PM   #3
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It ticks all the time no matter temp and if i just changed oil or not. Gonna have to save up some cash first they want around 2000 to change cam lifters push rods sending head to machine shop to get checked out and labor
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Old 12-14-2012, 12:44 PM   #4
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Did you rule out an exhaust manifold crack/leak? It will tick as you describe (sounding like a lifter).
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Old 12-14-2012, 01:37 PM   #5
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Yea took it to the dealership and they inspected it said cam might be worn. Prob gonna take it some place else and get a second opinion. Anybody know any good places in north carolina?
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Old 12-14-2012, 09:59 PM   #6
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Nobody else has had this problem? Does anybody know something that will help jt out till i can get jt fixed like running different oil or something?
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Old 12-14-2012, 10:01 PM   #7
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Mine also ticks, always has.
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Old 12-14-2012, 10:46 PM   #8
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Could be the down tube separating from the headers... Mine has several times. I have a hard time re-tightening.
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Old 12-15-2012, 12:25 AM   #9
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Some engines are just louder than others...the 4.0 seems to be a ticker. Unless it's knocking or the tick is extremely loud I wouldn't worry about it.
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Old 12-15-2012, 12:50 AM   #10
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What oil have you been using? I switched to Mobile One at 36k. By 45k it had developed a tick that matched revs regardless of temperature. Added STP zinc additive (ZDDP) and tick is almost gone. Will be switching back to dino oil next change. I read that synthetics lack zinc, which helps lube out flat lifters. Try it before you dump $2k into dealership repairs.
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Old 12-15-2012, 01:16 AM   #11
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Synthetic or conventional oil really doesn't matter.
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Old 12-15-2012, 05:23 AM   #12
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It has a slight tick all the time but worse between 1500-2000 and sometimes i can hear it over road noise and radio at 40 mph. Been gettin alittle worse over past month been using castrol syn 10-30 last couple of times
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Old 12-16-2012, 02:59 AM   #13
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Quote:
Originally Posted by jww3rd
Ive had this engine tick around 1500-2000 rpm for about a month now and finally took it to the dealership to get it looked at. They called me today and told me it could be one of two things. 1 worn camshaft lobes and they would have to replace camshaft lifters and check out the head. 2 piston slap he said not likely...If i get the cam swapped out should i run a different oil to stop this from happening again or was it just a bad batch of cams from factory.
I have a 06 lj rubicon 6 speed and 56780 miles
I love how the stealership goes for the worst case scenarios first lol. 4.0's do tick but, usually not much more than being detectable at idle if you have an earlier 2000 or up. Have you checked to see if you have any exhaust leaks? You'd be surprised how many times an engine tick is mistaked for a simple header gasket leak. Take it to an exhaust shop just to be sure. They probably won't even charge you to check. I have two friends with 06's that are six speeds. One is a sport and the other an LJ. Both have over 100k miles with no tick. And the one with the LJ has well over 150k miles and wheels the crap out of it. So I would find it extremely hard to believe that it's an internal problem that was "bound to happen". Have you ever run the engine too low on oil? If you have, that may explain your tick. Ticks are hard to diagnose unless in person. Could be a lifter, might be a sticky valve. Take it to a few reputable private shops. See if they will just give it a listen. Never hurts
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Old 12-16-2012, 06:02 AM   #14
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Quote:
Originally Posted by jww3rd View Post
Ive had this engine tick around 1500-2000 rpm for about a month now and finally took it to the dealership to get it looked at. They called me today and told me it could be one of two things. 1 worn camshaft lobes and they would have to replace camshaft lifters and check out the head. 2 piston slap he said not likely but he wanted to tell me that just incase i did camshaft swap and it didnt fix problem has anybody on here had a similar problem and the camshaft replacement fixed it. And is there anything else i should get replaced while they are in there. If i get the cam swapped out should i run a different oil to stop this from happening again or was it just a bad batch of cams from factory.
I have a 06 lj rubicon 6 speed and 56780 miles

What scares me is the double whammy they are tossing at you. Typical dealership not fully diagnosing the problem, and covering their butts.

They are saying cam problem, but could be the pistons, if the cam doesn't fix it.

So what, have you spend 2 grand to see if they guessed right? And then spend even more if they didn't?

Find another shop!
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Old 12-16-2012, 07:06 AM   #15
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Has anyone done a compression test on the motor yet. If you have good compression across all the cylinders that could rule out a lot of things couldn't it. And if you have good compression across the cylinders why send the head away to check for cracks. I'm not a mechanic but that's where I might start.
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Old 12-16-2012, 08:01 AM   #16
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Ight so i an deff gonna find a diff shop to get a 2nd look at it ill let yall know when i get it looked at and what they say
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Old 12-16-2012, 04:24 PM   #17
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Does anybody know any good shops in nc?
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Old 12-16-2012, 08:23 PM   #18
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For $2k, I would be letting it tick. You can buy an entire long block for $2k.

The 4.0's can be a little noisy. The one in my 93 cherokee sounded like a diesel from day one and ran for ever.

I agree with getting a good second opinion...
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Old 12-16-2012, 08:35 PM   #19
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Check your driveshaft for a Zip tie... I know of people who will put one on someone's driveshaft to make them go crazy looking for a tick
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Old 12-17-2012, 04:53 AM   #20
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Piston slap is normally when you first start your engine, because the tolerances are on the small side when cold. As the engine warms up usually the noise goes away, because the metal swells to a larger tolerance. It's probably not piston slap.
I am not big on oil additives, but have used one for about 50 years, that is very good for lifter noise. It is called Marvel Mystery oil. Only add about a half of a pint to your oil and just try it. It's not that expensive and most auto parts stores carry it. It is 4.9 viscosity and is a high detergent for cleaning. I normally put it in all of my engines, about 100 miles before a oil change and then make sure that your oil is hot when you drain it.
As for oil, just about all oils manufacture currently are good today. I use Valvoline 10w30 conventional. Just a preference not necessarily better.
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Old 12-17-2012, 08:58 PM   #21
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Quote:
Originally Posted by Old Dogger
Piston slap is normally when you first start your engine, because the tolerances are on the small side when cold. As the engine warms up usually the noise goes away, because the metal swells to a larger tolerance. It's probably not piston slap.
I am not big on oil additives, but have used one for about 50 years, that is very good for lifter noise. It is called Marvel Mystery oil. Only add about a half of a pint to your oil and just try it. It's not that expensive and most auto parts stores carry it. It is 4.9 viscosity and is a high detergent for cleaning. I normally put it in all of my engines, about 100 miles before a oil change and then make sure that your oil is hot when you drain it.
As for oil, just about all oils manufacture currently are good today. I use Valvoline 10w30 conventional. Just a preference not necessarily better.
He's right about the piston slap. And I had a shop teacher from highschool that put Marvel Mystery Oil in everything. No doubt it's good stuff. Oh man, the zip tie thing LOL messed up but, funny at the same time. And also I like what the one guy said about the long block. Shit for $3k you could get a brand new stroker! =D
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Old 12-18-2012, 01:40 AM   #22
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Yea i was thinkin that at 2000 i would be close to a new block. And i noticed today after driving for a bit that when it was tickin bad and idling it would idle alittle rough tryed giving it alittle thottle and let it settle back down and it still was alittle rough. Thinkin that ill get a second look and go from there. Thanks again for everybody's help and input
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Old 12-18-2012, 01:56 AM   #23
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Check your driveshaft for a Zip tie... I know of people who will put one on someone's driveshaft to make them go crazy looking for a tick
What?!?!?!?!
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Old 12-18-2012, 09:21 AM   #24
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Ever since I purchased my Wrangler with a 4.0 engine it ticks when I start it up. I tried the Marvel Mystery oil that OD recommended. My oil level was down about a pint so I added a pint of this red Mystery oil and drove it about 100 miles on a trip and WOW now the tick is gone on start up. THAT OIL IS TRULY A MARVEL!
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Old 12-18-2012, 09:27 AM   #25
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+1 for considering anything the dealership diagnoses as absolutely NOT the real problem.
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Old 12-18-2012, 01:19 PM   #26
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Dealer using the word might? So u throw money at it and it doesn't fix it then its something else? I wouldn't feel confident in letting them touch my ride...

I had tick last week, threw sea foam in my crankcase, drove 80 miles and then changed my oil and tick is gone. Must of been a lifter sticking
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Old 12-18-2012, 08:15 PM   #27
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Ever since I purchased my Wrangler with a 4.0 engine it ticks when I start it up. I tried the Marvel Mystery oil that OD recommended. My oil level was down about a pint so I added a pint of this red Mystery oil and drove it about 100 miles on a trip and WOW now the tick is gone on start up. THAT OIL IS TRULY A MARVEL!
That's a good suggesting. Another diagnostic trick is to put in a heaver weight oil and listen for a change in noise level. If it does not change sound then the problem is not things like worn rod bearings etc. Might want to put the correct oil weight back in after test.

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