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Old 08-11-2013, 09:11 PM   #1
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OPDA Issue

Hey Guys,

I just purchased a 2005 sport 4.0 6 speed about 2 weeks ago. I was browsing the forums and came across the dreaded OPDA problem. Is this something I should be really concerned about? Everyone is saying it will eventually happen to all 05-06 TJ's, sometimes with no notice at all. I cannot afford 3-4k for a new engine if this one blows. Is this motive to sell the jeep all together before I have issues with it? Is there anything preventive I can do to avoid this failure from happening in my jeep? I really love my jeep so far but just don't have the coin to replace an engine in it. Thanks in advance for any advice!

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Old 08-11-2013, 09:46 PM   #2
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DO a little reading up on it. From what I saw there is an updated OPDA assy. it has a grooved shaft to help supply oil to the upper bushing.

And it's not just the 05-06's, our 97 did it too, but I caught it in time.

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Old 08-11-2013, 10:02 PM   #3
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I don't worry about it on my 06, the way I see it is that for every one person that's had a problem with it there is probably a thousand that haven't had an issue. I think forums are about like the news, they really only report the bad stuff.
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Old 08-11-2013, 10:19 PM   #4
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I replaced the OPDA in my '06 with 80,000 miles. I used the instructions on this forum and it went smoothly. The part was around $170 and it took about an hour to line everything up, swap out the OPDA, and change out the spark plugs (took #1 plug out to make sure I was at TDC then decided to put all new plugs in). The old OPDA had some wear on it but wasn't bad. Like you I got paranoid after reading all the horror stories and decided $170 for the new OPDA was a good buy.
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Old 08-12-2013, 05:58 AM   #5
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Originally Posted by JGreen06TJ View Post
I replaced the OPDA in my '06 with 80,000 miles. I used the instructions on this forum and it went smoothly. The part was around $170 and it took about an hour to line everything up, swap out the OPDA, and change out the spark plugs (took #1 plug out to make sure I was at TDC then decided to put all new plugs in). The old OPDA had some wear on it but wasn't bad. Like you I got paranoid after reading all the horror stories and decided $170 for the new OPDA was a good buy.

From what I've read, just replacing the opda won't fix it. Did you modify the new one at all to get lubrication to the upper bushing?
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Old 08-12-2013, 07:31 AM   #6
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I bought the new modified Dorman OPDA. My 05 Rubicon had about 44,000 miles on it and there was barely, if any wear on the old OPDA. The Dorman went in easily and I have about 3,000 miles on it. Long way to go to see how it performs. I have an 06 with 12,000 miles on it and have not touched the OPDA. I replaced the 05's because of the forum. I definitely got nervous. Removal and inspection proved my old one was fine, but you do never know when that bearing in the OPDA will start to seize up. Glad I did it.
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Old 08-12-2013, 09:42 AM   #7
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Originally Posted by wagnern27 View Post
Hey Guys,

I just purchased a 2005 sport 4.0 6 speed about 2 weeks ago. I was browsing the forums and came across the dreaded OPDA problem. Is this something I should be really concerned about? Everyone is saying it will eventually happen to all 05-06 TJ's, sometimes with no notice at all. I cannot afford 3-4k for a new engine if this one blows. Is this motive to sell the jeep all together before I have issues with it? Is there anything preventive I can do to avoid this failure from happening in my jeep? I really love my jeep so far but just don't have the coin to replace an engine in it. Thanks in advance for any advice!
In all no the OPDA issue really isn't an issue. There were a few "defective"(out of spec) OPDA's floating around, but the majority of 05'-06' TJ/LJ owners do not have the issue.

Remember the internet tends to overblow things.
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Old 08-12-2013, 09:43 AM   #8
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From what I've read, just replacing the opda won't fix it. Did you modify the new one at all to get lubrication to the upper bushing?
Lubrication was not the problem. No need to "modify" it.
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Old 08-12-2013, 09:43 AM   #9
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I don't worry about it on my 06, the way I see it is that for every one person that's had a problem with it there is probably a thousand that haven't had an issue. I think forums are about like the news, they really only report the bad stuff.
BINGO!
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Old 08-12-2013, 06:32 PM   #10
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So do you guys recommend I take any action on this? Or should I just keep an eye out for warning signs? What are those warning signs? Also, has anyone had experience getting Chrysler to reimburse the cost for the part itself? I read on this forum someone got Chrysler to buy the OPDA but would not pay for the labor.
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Old 08-12-2013, 06:55 PM   #11
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So do you guys recommend I take any action on this? Or should I just keep an eye out for warning signs? What are those warning signs? Also, has anyone had experience getting Chrysler to reimburse the cost for the part itself? I read on this forum someone got Chrysler to buy the OPDA but would not pay for the labor.
If the jeep is runnin smooth then no worries. Have it checked when you hit 80-100k....
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Old 08-12-2013, 08:12 PM   #12
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From what I've read, just replacing the opda won't fix it. Did you modify the new one at all to get lubrication to the upper bushing?

I bought the Dorman OPDA which is supposed to be a better design. My train of thought was if the original lasted 7 years and 80,000 miles the replacement will hopefully last at least that long, then I'm not too worried about it because it will be many, many years before I put another 80,000 miles on this Jeep.
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Old 08-12-2013, 09:23 PM   #13
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I looked at it as preventive maintenance and replaced mine a year ago with a Stripperguy (jeep forum ) modded OPDA. That was before Dorman came out with there's . You never know if or when the OE one may go bad and it may not be at a convenient time or place . For a few bucks the only time I think of OPDA is when I read about it on a forum.
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Old 08-12-2013, 09:52 PM   #14
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My 06 started making a squealing noise on start up. It was the opda & with only 32,000 miles. Replaced with a new one & stripper guy mod & I'm at 45,000 now & no issues.
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Old 08-13-2013, 03:28 PM   #15
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Check your vin the ones that had problems have an "S" in the 8th position and
motor build code of 20 Oct 04 to 1 Feb 05

makes a sound like laughing monkeys
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Old 08-13-2013, 04:03 PM   #16
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Check your vin the ones that had problems have an "S" in the 8th position and
motor build code of 20 Oct 04 to 1 Feb 05

makes a sound like laughing monkeys
How do you find the engine build code?
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Old 08-13-2013, 04:04 PM   #17
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My 06 started making a squealing noise on start up. It was the opda & with only 32,000 miles. Replaced with a new one & stripper guy mod & I'm at 45,000 now & no issues.
Do the new dorman's require the stripper guy mod? Or is it just a direct replacement.
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Old 08-13-2013, 04:20 PM   #18
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Do the new dorman's require the stripper guy mod? Or is it just a direct replacement.
The Doorman's have a slight redesign on the shaft upper bearing. No in spec. OPDA needs any mod in truth. If the part is in spec. It will last. Just like any other mechanical part. Don't need to overthink things or make problems that most likely doesn't even exist.

I do think its a good idea to see if your vehicle's VIN and mfg. date fall within the range where the factory released Wranglers with a potentially defective OPDA unit. If it does then its not a bad idea to have the OPDA at least inspected. But no point in crossing a bridge that you may not necessarily have to cross. A lot of other things I would worry about first on your wrangler vs. the OPDA(like rust maintenance or prevention steps).
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Old 08-13-2013, 05:46 PM   #19
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The Doorman's have a slight redesign on the shaft upper bearing. No in spec. OPDA needs any mod in truth. If the part is in spec. It will last. Just like any other mechanical part. Don't need to overthink things or make problems that most likely doesn't even exist.

I do think its a good idea to see if your vehicle's VIN and mfg. date fall within the range where the factory released Wranglers with a potentially defective OPDA unit. If it does then its not a bad idea to have the OPDA at least inspected. But no point in crossing a bridge that you may not necessarily have to cross. A lot of other things I would worry about first on your wrangler vs. the OPDA(like rust maintenance or prevention steps).
Do you know where to find the engine build code?
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Old 08-13-2013, 05:50 PM   #20
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Do you know where to find the engine build code?
Do you have the S in your VIN? Doorjamb for VIN.
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Old 08-13-2013, 06:02 PM   #21
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Do you have the S in your VIN? Doorjamb for VIN.
Yes, S is in the 8th position
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Old 08-13-2013, 07:08 PM   #22
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Yes, S is in the 8th position


Can you check with po to see if they recalled/replaced it or he had any problems ?????

If not then maybe you want to swap it out for a new one just to be safe.
$170 vs engine repalcment.

also something else you need to be aware of if you have the 4.0 in line 6 cyl. In 07 the government changed the requirements of the oil formula....removing the zinc and phousphorus out. that was great for the newer cars with roller cams but bad for flat tappet motors like the 4.0. The reason they did this is because they were getting premature cat failures at around 50 - 80 k. But by removing the ZDDP from the oil it causes cam failures in flat tappet motors. That is why I am gonna have to swap my motor out. So get diesel oil or Joe Gibbs racing oi or risoline zinc additivel
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Old 08-13-2013, 07:27 PM   #23
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Can you check with po to see if they recalled/replaced it or he had any problems ?????

If not then maybe you want to swap it out for a new one just to be safe.
$170 vs engine repalcment.

also something else you need to be aware of if you have the 4.0 in line 6 cyl. In 07 the government changed the requirements of the oil formula....removing the zinc and phousphorus out. that was great for the newer cars with roller cams but bad for flat tappet motors like the 4.0. The reason they did this is because they were getting premature cat failures at around 50 - 80 k. But by removing the ZDDP from the oil it causes cam failures in flat tappet motors. That is why I am gonna have to swap my motor out. So get diesel oil or Joe Gibbs racing oi or risoline zinc additivel
Who is po? Lol. As far as I know Chrysler has no recalls on this.
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Old 08-14-2013, 08:11 AM   #24
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I have a S in the 8th position, Im going to 150,000 miles. Original OPDA, just saying...
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Old 08-14-2013, 08:22 AM   #25
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Who is po? Lol.
Master Po was the blind master in Kung Fu! Po was the red teletubbie. Maybe the previous owner was a fictional t.v. character.
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Old 08-14-2013, 09:50 AM   #26
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Who is po? Lol. As far as I know Chrysler has no recalls on this.
THey don't because its not as big as a problem as the internet makes it out to be.
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Old 08-14-2013, 10:01 AM   #27
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Master Po was the blind master in Kung Fu! Po was the red teletubbie. Maybe the previous owner was a fictional t.v. character.
This made me laugh, but now I also know what PO is. Unfortunately I bought if from a dealer so I don't have that information. Thanks for the info though.
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Old 08-14-2013, 12:05 PM   #28
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I don't worry about it on my 06, the way I see it is that for every one person that's had a problem with it there is probably a thousand that haven't had an issue. I think forums are about like the news, they really only report the bad stuff.
I agree with this ^.

Mine is a 2005 with only 52k miles. I had my mechanic check it out and he said there was no reason to be concerned about it and no reason to change it out. Not saying it won't happen, but I'm not going to sell my jeep and not going to worry about it,, and I have an S in the 8th position....

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