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Jeep 4.0 OPDA/Camshaft Synchronizer wore out again #4517213
09/15/17 04:23 PM
09/15/17 04:23 PM
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Chris142 Offline OP
Chris142  Offline OP
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
The 05 and 06 4.0 Jeep engines eat the cam gear... My 02 wore out the bushings in this part. This is the 3rd one. They last about 80k. It goes where a distributor would if it had one and is just a shaft that run on bushings just like a Distributor. One end drives the oil pump and the other end is the cam position sensor.

Jeep usually gets whatever 10w30 is cheapest since that's whats recommended by Jeep.

Anybody think a 15w40 would make this part last longer?


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Chris142] #4517218
09/15/17 04:31 PM
09/15/17 04:31 PM
Joined: Dec 2003
Posts: 9,801
Florida, Cape Coral
Eddie Offline
Eddie  Offline
Joined: Dec 2003
Posts: 9,801
Florida, Cape Coral
My 2005 GC with the 4.0 had over 160,000 miles when I sold it and never had this part replaced. Who are you getting these replacement parts from? ed


CX5 Touring 2.5L :-)
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Eddie] #4517225
09/15/17 04:41 PM
09/15/17 04:41 PM
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Chris142 Offline OP
Chris142  Offline OP
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Originally Posted By: Eddie
My 2005 GC with the 4.0 had over 160,000 miles when I sold it and never had this part replaced. Who are you getting these replacement parts from? ed
The original one actually started making noise around 60k but I waited till 80K to replace it. I replaced it with a Dorman one. It lasted 87k. Jeep now has 167k. Today I got one from Napa. It looks better made than the Dorman one it replaced. The bushings wear out and the part that spins so the sensor can "see" it starts hitting the inside of the housing.

Makes an awful racket! New one is quiet,


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Chris142] #4517231
09/15/17 04:45 PM
09/15/17 04:45 PM
Joined: Mar 2015
Posts: 10,802
In the shop
53' Stude Online content
53' Stude  Online Content
Joined: Mar 2015
Posts: 10,802
In the shop
Maybe DELO 10w30 might help. Thinking out loud here


09' Camry LE, 141,020 miles

PP 5w30 and TG 4967
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Chris142] #4517241
09/15/17 05:07 PM
09/15/17 05:07 PM
Joined: Dec 2016
Posts: 113
NC
ruhroh Offline
ruhroh  Offline
Joined: Dec 2016
Posts: 113
NC
236K thus far and never had to replace mine on a 99. It also gets whatever cheap oil's available in 5W30 or 10W30, now 10W40 for the first time for no real reason. Did pull it out once 6-7 years ago due to curiosity as to what it was. Stuck it back in and car wouldn't start. Had to google what it was and then had to TDC the engine. That was a self-inflicted educational experience that cost half a day to fix...

If the new one lasts another 90K, then I'd say the vehicle has had a great run and to just keep replacing the small important parts as they break. TBH, I have been expecting my Jeep to completely, sans engine, fall apart at any moment now.

Last edited by ruhroh; 09/15/17 05:08 PM.
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: ruhroh] #4517245
09/15/17 05:14 PM
09/15/17 05:14 PM
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Chris142 Offline OP
Chris142  Offline OP
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Originally Posted By: ruhroh
Did pull it out once 6-7 years ago due to curiosity as to what it was. Stuck it back in and car wouldn't start.
I took a pic of mine with my phone as a reference.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Chris142] #4517277
09/15/17 06:03 PM
09/15/17 06:03 PM
Joined: Aug 2014
Posts: 141
Texas
Tdog02 Offline
Tdog02  Offline
Joined: Aug 2014
Posts: 141
Texas
That's a case of the laughing monkeys. Seriously that's what its called. It is an issue with the last version of the 4.0's in the TJ line up. (03-06 with most of the issues being 05-06 models)

You have a problem that requires a certain fix. When I was on the jeep forums I read several detailed write ups on this but never really worried about it in my 02 cause I was busy replacing the cracked head that was common to 01-02 models.

You should be able to find info on it and there were a couple of successful fixes if I remember correctly. Search laughing monkeys.


09 Venza 2.7 100k 5w-30 Magnatec
16 F150 2.7TT 40k 5w-30 Magnatec
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Chris142] #4517408
09/15/17 09:05 PM
09/15/17 09:05 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
I've heard the Jeep 4.0 likes 10W-40.

Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Chris142] #4517516
09/15/17 11:48 PM
09/15/17 11:48 PM
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Chris142 Offline OP
Chris142  Offline OP
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
I have heard of the laughing monkeys. But my 02 isnt part of that. That started with the opda change in 05.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Chris142] #4517593
09/16/17 06:05 AM
09/16/17 06:05 AM
Joined: Sep 2007
Posts: 316
northern NY
Driz Offline
Driz  Offline
Joined: Sep 2007
Posts: 316
northern NY
As far as I'm concerned jeep and junk start with the same letter. I hated them when I was in the army and I always avoided them based on their bad reputation until my wife conned me into getting one on a lease in 96. I won't say they're terrible on the inside and they were good in the snow all through reliability sucked. Then when I want to get turned in we good with the same thing with the 2000 and I lived with that [censored] thing for like 12 years I can't think of too many things that I didn't replace and that stupid [censored] truck and the engine flip the ring at 113,000 never mind all the headaches with the transformation . I changed stuff in that car that I never changed in my life that just plain wore out prematurely fell apart and just went to pieces. Then there was the day the frame cracked in half right after I give it a good going over uneven had a mechanic friend of mine put it up in the list in a look at it just for that sort of thing .
On the other hand I seen guys drive those things right into the ground is nothing wrong with them. I don't know I kind of wonder some people tend to not Want to admit their cars issues. You'll never seen me going there another one. crazy

Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Chris142] #4517723
09/16/17 10:21 AM
09/16/17 10:21 AM
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Chris142 Offline OP
Chris142  Offline OP
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Fortunatly this is a $50 part that takes 3 minutes to change every 80k. I'm just wondering if a thicker,better etc oil may stop the thing from wearing out.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Driz] #4518654
09/17/17 02:52 PM
09/17/17 02:52 PM
Joined: Apr 2010
Posts: 4,398
Storrs, Connecticut
jeepman3071 Offline
jeepman3071  Offline
Joined: Apr 2010
Posts: 4,398
Storrs, Connecticut
Originally Posted By: Driz
As far as I'm concerned jeep and junk start with the same letter. I hated them when I was in the army and I always avoided them based on their bad reputation until my wife conned me into getting one on a lease in 96. I won't say they're terrible on the inside and they were good in the snow all through reliability sucked. Then when I want to get turned in we good with the same thing with the 2000 and I lived with that [censored] thing for like 12 years I can't think of too many things that I didn't replace and that stupid [censored] truck and the engine flip the ring at 113,000 never mind all the headaches with the transformation . I changed stuff in that car that I never changed in my life that just plain wore out prematurely fell apart and just went to pieces. Then there was the day the frame cracked in half right after I give it a good going over uneven had a mechanic friend of mine put it up in the list in a look at it just for that sort of thing .
On the other hand I seen guys drive those things right into the ground is nothing wrong with them. I don't know I kind of wonder some people tend to not Want to admit their cars issues. You'll never seen me going there another one. crazy


I think quality is definitely hit or miss.

My 2000 Cherokee has 175k and has been pretty reliable the 8 years I've owned it. My friend's 2000 with about the same mileage has had a ton of issues. Both were bought used though, so who knows. He also beats on his a little more.


2000 Jeep Cherokee 4.0L (180k) - Pennzoil 10w30, Napa Gold 1516, Magnefine trans filter
2009 BMW 328i (33k) - Castrol Edge Euro 0w40, MANN HU816X
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Chris142] #4518801
09/17/17 05:52 PM
09/17/17 05:52 PM
Joined: Nov 2016
Posts: 1,278
WI
HoosierJeeper Offline
HoosierJeeper  Offline
Joined: Nov 2016
Posts: 1,278
WI
Haven't had major issues with any of mine...love them. Jeeps work well for me.

The haters are just leaving me more Jeeps to choose from anyway. smile


15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Chris142] #4518813
09/17/17 06:08 PM
09/17/17 06:08 PM
Joined: Feb 2013
Posts: 10,689
Phoenix, AZ
Nick1994 Online content
Nick1994  Online Content
Joined: Feb 2013
Posts: 10,689
Phoenix, AZ
My Jeep thinks it's a VW and always needs attention frown


2015 Hyundai Sonata 2.4L 84k Mobil 1 AFE 0w30 & OEM
2000 Toyota Camry 2.2L 230k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: Jeep 4.0 OPDA/Camshaft Synchronizer wore out again [Re: Chris142] #4519009
09/17/17 09:39 PM
09/17/17 09:39 PM
Joined: Aug 2006
Posts: 9,804
Central Washington
Colt45ws Offline
Colt45ws  Offline
Joined: Aug 2006
Posts: 9,804
Central Washington
Originally Posted By: Chris142
[quote=Eddie]I replaced it with a Dorman one.

Uh.
There's your problem.


-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2
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