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2500HD/3500 HD Trucks & Drivetrain Discussion Forum for the 2001 & newer 2500HD/3500 Trucks, Transmissions & Drivetrain

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  #1  
Old 10-13-2004, 01:40 PM
pushpole pushpole is offline
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Question MERGED THREADS: Transfer Case leak information

Just hauled the flats boat up from Florida and noticed a small puddle of transmission fluid on the driveway the next morning, hmmmmmmm. It looked like the tranfer case but could'nt be sure. I drained and refilled the transfer case and cleaned everything up. I parked the truck for a day and no leaks. I put the truck up on jack stands and took her for a 70 mph drive in the driveway.... I found a pinhole leak in the casing (casting porosity?). What's the real deal repair for a leak like this? Thanx!
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  #2  
Old 10-13-2004, 02:22 PM
DmaxMaverick DmaxMaverick is offline
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Get the dealer to take care of it, even if you are out of warranty. It may be an obvious manufacturer's defect, which allows for some descretion on the dealer's part to help you. Many cases find the dealer covering the repair, or at least a good part of it. If you have a porosity issue with the case, the leak is just the beginning of a more drastic failure.
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  #3  
Old 10-13-2004, 08:29 PM
lookin2buy lookin2buy is offline
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pushpole-

DmaxMaverick is right. Take it to the dealer and you might be suprised. No sense in letting it keep leaking, and adding fluid once and a while. It might be something that could still be covered even if it is out of warranty.
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  #4  
Old 10-29-2004, 10:24 AM
Cliffee Cliffee is offline
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That is a known defect. GM should acknowledge it. They now have a diiferent transfer case that does not get this leak.
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  #5  
Old 11-08-2004, 12:50 PM
pushpole pushpole is offline
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The dealer and regional rep want to try a leak repair. I've reluctantly agreed. The repair looks like a epoxy smear at the leak location. I must admit it's a very good color match! I will monitor the results in around town driving for a while before I head out for an extended trip. I did get the key words casting porosity in the written diagnosis of the problem. Thanx for the input.
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  #6  
Old 11-08-2004, 01:07 PM
DmaxMaverick DmaxMaverick is offline
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Not acceptable!

Under these circumstances, I would demand a warranty extension (specific to the xfer case) to 100K miles. It WILL leak again, and possibly grenade on you. If they are confident that the fix will fix it, then they will be willing to extend your warranty. If they do not, then that should show you just how confident they are in the repair.

A patch like this only gets you outside of the warranty period in most cases.
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  #7  
Old 11-13-2004, 05:40 PM
4diesels 4diesels is offline
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DO NOT give in until they make the fix that YOU want. I spent the better part of three days working over a "customer service" rep in order to get what I wanted. Rest assured, it was far more than what they "offered" initially. The simple argument about an ext warranty is the desire to not be stranded one day when the known problem suddenly gets bigger

If you are the original owner of the truck and better yet if it isn't your first GM truck, you might be surprised what they will do if you make enough of a stink. Not how it SHOULD be but, that is the road they force you to go down.
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  #8  
Old 11-14-2004, 11:46 PM
DA BIG ONE
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What t-case do you have?
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  #9  
Old 11-18-2004, 04:34 PM
letsgo letsgo is offline
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Quite often pressurized aluminium pipes and tankes can be repaired with dedicated patch kits.

HOW EVER your transfer case is magnesium not aluminium SOOOO what patch kit do they propose using???????

good luck
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  #10  
Old 11-19-2004, 10:52 AM
William Lee Gingerich William Lee Gingerich is offline
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The transfer case on our crewcab dually started leaking recently, took it to the dealer and there is a brass bushing inside that supports a shaft and if the bushing wears enough, the shaft can wear a pinhole in the back half of the case. That is what happened in our case. Dealer says it will cost $850 plus tax ,not very happy about it!!


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