GM Regional Rep
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,503
Likes: 2
From: Oklahoma City OK
GM Regional Rep
How do I find my regional GM rep... No dealers in my town are able to fix a rear diff problem that GM says is repairable? This is under GMPP Major guard.
Dealer tells me that the best thing is to get a new Diff, but GMPP wont pay for a new one since it can be rebuilt...
Dealer tells me that the best thing is to get a new Diff, but GMPP wont pay for a new one since it can be rebuilt...
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Call GM Customer Assistance - they can tell you who it is. Also, the dealer should have the name and number of the rep.
Melting Slicks
Joined: Nov 2005
Posts: 2,071
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From: clackamas oregon
1-800-222-1020 can help you in this situation.
so the dlrs dont have the skills or equipment to do the rebuild correctly? or are they saying its not the correct fix and calls for a new unit?
just an fyi, gmpp would be rebuilding it with new gm parts also. if the case is not damaged, not a problem. a lot of the whole units you get thru extended service contract warranty repair are reman units anyways.
so the dlrs dont have the skills or equipment to do the rebuild correctly? or are they saying its not the correct fix and calls for a new unit?
just an fyi, gmpp would be rebuilding it with new gm parts also. if the case is not damaged, not a problem. a lot of the whole units you get thru extended service contract warranty repair are reman units anyways.
Last edited by rgtkst; Apr 27, 2007 at 07:16 PM.
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,503
Likes: 2
From: Oklahoma City OK
I have tried GM customer service in the past and all they could do was apply a little pressure to the dealer, but not make them spend the money on a new diff.
Also they would not give me that name or # of my local GM rep. They said they would have to leave a message for him.
Also they would not give me that name or # of my local GM rep. They said they would have to leave a message for him.
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,503
Likes: 2
From: Oklahoma City OK
1-800-222-1020 can help you in this situation.
so the dlrs dont have the skills or equipment to do the rebuild correctly? or are they saying its not the correct fix and calls for a new unit?
just an fyi, gmpp would be rebuilding it with new gm parts also. if the case is not damaged, not a problem. a lot of the whole units you get thru extended service contract warranty repair are reman units anyways.
so the dlrs dont have the skills or equipment to do the rebuild correctly? or are they saying its not the correct fix and calls for a new unit?
just an fyi, gmpp would be rebuilding it with new gm parts also. if the case is not damaged, not a problem. a lot of the whole units you get thru extended service contract warranty repair are reman units anyways.
I have had every part in the diff replaced including the housing... The dealer has bought me 2 sets of ring gears to try to get it right. not to mention the man hours working on my car. They could have easily bought me a new High performance Diff...
Melting Slicks
Joined: Jul 2004
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From: Edmond, OK...One of the first rules of online forums: If you don't like what is said but can't refute it, attack the poster.
My experience has been dealerships cant rebuild a diff. It must be very difficult. I had the diff rebuilt in my jeep 3 times and they still couldn't get the whine out.
Can you try a different dealership?
jeff
Can you try a different dealership?
jeff
Le Mans Master
Joined: Oct 2004
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From: Zephyrhills, Florida
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13
You don't say specifically what the diff. problem is..Is it the common left side leak?
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Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,503
Likes: 2
From: Oklahoma City OK
My rear end is whining loud... before the rebuilt it it would whine on cruis control on the high way...
Now it is whining when I coast 90mph down to 65mph... I keeps geeting louder and louder
Le Mans Master
Joined: Oct 2004
Posts: 9,369
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From: Zephyrhills, Florida
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13
Ah..I don't think most dealers have the ability to work on the diff. internals. I'd do the GM customer assistance thing or pursue the GMPP folks. You'll likely dance awhile but GOOD LUCK! Seems like they throw good money after bad, it would be much easier on you if the thing just plain blew/locked up 
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,503
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From: Oklahoma City OK
How to make it blow? 
Former Vendor
Joined: Feb 2004
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From: Las Vegas NV
St. Jude Donor '06 & '12
Most extended warranty companies will allow you to go to an outside repair facility. I'm not 100% sure if the extended portion of GMPP will allow you, but its worth a try.
Ask GMPP if you are able to take the car to a reliable transmission repair facility in your area.
Ask GMPP if you are able to take the car to a reliable transmission repair facility in your area.
Le Mans Master
Joined: Oct 2004
Posts: 9,369
Likes: 4
From: Zephyrhills, Florida
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,503
Likes: 2
From: Oklahoma City OK
Most extended warranty companies will allow you to go to an outside repair facility. I'm not 100% sure if the extended portion of GMPP will allow you, but its worth a try.
Ask GMPP if you are able to take the car to a reliable transmission repair facility in your area.
Ask GMPP if you are able to take the car to a reliable transmission repair facility in your area.
I would like to use a supporting vendor on the Forum but I live in Oklahoma... How do I go about this?
Drifting
Joined: Oct 2005
Posts: 1,435
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From: Saint Louis MO
Reminds me of an Astro van I had. They rebuilt the rear end NINE times. It kept eating the side gears. I called customer service and asked for a drum to drum at the sixth rebuild. They said they couldn't do that. The eighth time they used a new housing and put all the like new parts in it. The ninth time they put in new side gears and bearings and it finally stopped knocking. I think some of the dealers like to milk the warranty to make more money and to keep their mechanics busy. David 
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,503
Likes: 2
From: Oklahoma City OK
This dealer says that GMPP is not paying for extra service...(I confirmed this with GMPP) The dealer is paying their tech every time he realigns it.
This dealer seems to be loosing money.
This dealer seems to be loosing money.
Safety Car
Joined: Apr 2002
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From: North Royalton, OH
St. Jude Donor '06-'07
If I recall, 21st Century here in the Dallas area was doing GMPP repairs, at least they were last year. If you don't mind a trip down, they are an excellent shop. I think they can rebuild your rear end...
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,503
Likes: 2
From: Oklahoma City OK
GMPP also says that they will not pay anymore on this rear end diff... They have already paid to have it all rebuilt.
The dealer has to try and fix it or GM customer service has to refer me somewhere else.
The dealer has to try and fix it or GM customer service has to refer me somewhere else.
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,503
Likes: 2
From: Oklahoma City OK
I let a 3rd dealer test drive the car and he can hear the noise but says that it will not get any quieter with any more service. He does not think anything is wrong... So, GM customer service gets the information from the 2nd and 3rd dealer. both dealers say that it is normal. I am convinced otherwise. I have had one other C-5 and it was quiet, no whine.
How do I fix this without shelling out the money for a new rear end???
How do I fix this without shelling out the money for a new rear end???
Last edited by beav626; May 17, 2007 at 08:59 PM.