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Discussion Starter · #1 ·
Here's the rundown. I have a new 07 1/2 Ram 3500 Dually. The transmission was bad the first day I got the truck. Dodge shipped the dealership a new trans and torque converter. The technician quit after pulling the trans out of my truck. They had another tech replace the trans with the new one.

I drove the truck and everything seemed fine. However, this truck sits for extended periods of time in my driveway. After sitting for a month or so there was a large puddle of trans fluid in the driveway. We finally figured out that the fluid is coming from the top of the dipstick tube. Apparently the trans is pressuring up while sitting and it is then leaking. It DOES NOT do it if you are driving the truck on a regular basis.

It has done this twice. My theory is the vent was plugged from the factory and while driving the trans is venting out the dipstick tube but after sitting for an extended period the fluid is draining back and overfilling the trans and then running out the dipstick tube.

Any suggestions or has anyone else seen this problem? Thanks for your help!!
 

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it would run out of the overflow vent behind the convertor way before it comes out the dipstick tube.
 
G

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Why the trans would overflow out the dipstick tube, even with the breather clogged, is unknown. I've never seen fluid expand that much. Second, it would be highly unlikely two transmissions would do that. However, since its still under warranty, your best bet is to take it to the dealer. Be sure to document all visits on this problem. If it goes beyond reasonable time for a solution, get a zone rep involved.
 

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Are you SURE its Trans fluid ?

My father in law had the same dilemma with his 06 megacab, it would drip every now and then (small puddle) well he took it in and they couldnt find it, took it in again and the Mechanic did the o'l taste test and it happend to be coolant... I guess the crossover tube or something wasnt seated right and would drip every now and then.. And i guess the coolant is red ? IDK.. Somethin to look at.
 

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Discussion Starter · #6 ·
Thanks for the replies. The first transmission did not do this. At least I'm pretty sure since the trans was bad from the minute I got it. They took the truck back immediately and Dodge shipped them a new transmission and converter.

Yes, we're sure it's trans fluid and it is coming from the top of the dipstick tube. If the vent behind the converter were plugged then the trans would have to vent somewhere and I'm thinking it would vent out the dipstick tube. But when it's running it does NOT leak a drop. Only after it sits for an extended period of time.

I want the dealer to pull the trans and look and see if the vent hole is plugged. What I was wondering is if the new trans was shipped with the vent plugged and the mechanic did not pull the plug when he installed it.

Thanks again for the help. Hopefully I will get this resolved in the near future. It is at the dealer right now.
 
G

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Its very unlikely that the trans would leak from the vent or the dipstick while sitting, and be fine when its running. Be sure to update us on this, since it seems such an odd problem.
 
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