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Unread 01-16-2013, 04:27 PM   #1
sfsocal
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07 GC 3.0L CRD Transmission Problems.

I need advice. I am having transmission issues. Should I take it to the dealer, or to someplace like AAMCO? I have an 07 GC 3.0L CRD. Every dealer I take it to, asks if I bought it in Europe. I took it to a dealer to have a glow plug changed. They had it 10 days because they ran out of fuel, and then had to vent the engine, which resulted in covering the entire engine with diesel fuel. They also broke something that had to be ordered, and on and on and on.

I suspect that the tranny isn't unique, but, still wonder if transmission folks are better than dealer techs.

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Unread 01-16-2013, 04:32 PM   #2
jjt250
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The CRD uses the same transmission as the 3.7 V6 and the SRT8 so any dealer should be able to service it.
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Unread 01-16-2013, 06:46 PM   #3
fishinbama
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I wouldn't go to aamco. Personally, I had bad luck with them(long ago) and now equate them with somewhere between scam/honest dealer. Don't let Aamco tear your transmission down, they will charge you to put it back together.
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Unread 01-16-2013, 07:24 PM   #4
90grandoneer
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I believe the CRD's have the NAG1 transmission (no dipstick), which is a Mercedes transmission. They should be able to work on them reliabily and without screwing it up. I don't think too many of the Jeep dealers are equipped (knowledge, technicians, tools, etc.) to the best job possible. The first thing I'd do is take it somewhere that has the correct equipment to check the fluid level. It has to be a certain level at a certain temperature. When was the last time it was serviced? Do you have any trans. shops in your area that are trustworthy, reliable and knowledgeable? Personally, I would stay away from the chains, like Aamco. Seems as though that's the same type of thing as going to Jiffy Lube for an oil change. Remember, these things a controlled electronically, and if serviced in a timely manner and fluid level is properly maintained, they seldom have problems. I have a NAG1 in my Hemi LX and it's worked flawlessly for over 7 years. Good luck and let us know what you end up finding.
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Unread 01-16-2013, 07:47 PM   #5
BAH101
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You could look for a dealer who services sprinter vans, they will have more qualified techs with CRD experience
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Unread 01-16-2013, 11:10 PM   #6
sfsocal
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Thanks for the great advice. It is the Trans w/o a dipstick. 90grandoneer, is your recommendation to take it to a Mercedes dealer for the transmission work?
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Unread 01-17-2013, 10:03 AM   #7
90grandoneer
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Yes, it wouldn't be a bad idea to ask them if they can help you, if your tranny is substantially the same as the ones in the Benz's. They probably wouldn't be able to do much IF you need to have the TCM updated though. That would require the Starscan, which they probably don't have. Also, don't know who makes the diesel in the WK, but the MB folks are also diesel knowledgeable. I know one of the main reasons I bought my Hemi LX is because of the Benz association, plus I've been a Benz owner for almost 30 years. My LX also has quite a few Benz components.....seats, transmission, suspension, etc.
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Unread 01-17-2013, 12:15 PM   #8
jjt250
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Quote:
Originally Posted by 90grandoneer View Post
Yes, it wouldn't be a bad idea to ask them if they can help you, if your tranny is substantially the same as the ones in the Benz's. They probably wouldn't be able to do much IF you need to have the TCM updated though. That would require the Starscan, which they probably don't have. Also, don't know who makes the diesel in the WK, but the MB folks are also diesel knowledgeable. I know one of the main reasons I bought my Hemi LX is because of the Benz association, plus I've been a Benz owner for almost 30 years. My LX also has quite a few Benz components.....seats, transmission, suspension, etc.
The diesel is a Benz engine so they should be able to service that too.
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Unread 01-17-2013, 06:29 PM   #9
sfsocal
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I had thought about taking it to a MB dealer for the engine, but, I read in another thread that some of the parts are Jeep. I think it is still a better idea. Thanks!
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Unread 01-18-2013, 04:41 PM   #10
sfsocal
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How do I put fluid in? Do I remove the cap on the dipstick tube and feed it in there?
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Unread 01-18-2013, 05:14 PM   #11
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Quote:
Originally Posted by sfsocal
How do I put fluid in? Do I remove the cap on the dipstick tube and feed it in there?
Yes but don't overfill. You'll need a scan tool capable of reading trans temp to properly measure the level. They make funnels specifically for filling the trans.
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Unread 01-18-2013, 08:44 PM   #12
sfsocal
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OK. I've ordered the Miller 9336a dipstick and an 'INNOVA 3160B ABS/SRS+ Professional CanOBDII Diagnostic Code Scanner with Enhanced Live Data'. My current scanner can't do live data. It's new, so I'll return it. Do I need a special tool to take that cap off?
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Unread 01-18-2013, 08:52 PM   #13
Radcrd
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no just pull it off. the Miller tool will not go in all the way. this is normal. Just be sure it touches bottom of pan ( you will feel it )
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Unread 01-28-2013, 07:16 PM   #14
sfsocal
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I got the Miller dipstick today, but, not the scanner, yet. I put the dipstick in with the engine cold just to see if there was any fluid. I was hoping there wasn't, so it would be easy to diagnose

As it turns out, it read 60. So, it isn't low transmission fluid causing my problem.

When I try to drive, the engine revs, but, the truck barely moves, like a bad clutch if it was a manual. Any suggestions? I guess I'm at the point that I need to tow it to a repair shop.
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Unread 01-29-2013, 12:52 AM   #15
FrenchXj
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if you are lucky it is Probably the same problem they have on WH, the actuator stay stuck... need to pull it appart, clean it, flush the transmission and go
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