09 Gmc Leaking Transmission Fluid

jbstx · February 17, 2009

[attac

hment=10208:

DSC01215.JPG]Decided to take a look under my truck today and found that it appears to be leaking transmission fluid. I did not find much on my driveway, maybe a dime size spot. I guess I'll be taking it in next week.

Anyone have this issue. My truck is a 2009 CC Sierra with 3500 miles

music · February 17, 2009

Decided to take a look under my truck today and found that it appears to be leaking transmission fluid. I did not find much on my driveway, maybe a dime size spot. I guess I'll be taking it in next week.
Anyone have this issue. My truck is a 2009 CC Sierra with 3500 miles

Sounds like you have the new 6-spd (2009 CC). Do you have the 5.3L? If so, what do you think of it? (ignoring the leak of course!)

jbstx · February 17, 2009

Decided to take a look under my truck today and found that it appears to be leaking transmission fluid. I did not find much on my driveway, maybe a dime size spot. I guess I'll be taking it in next week.
Anyone have this issue. My truck is a 2009 CC Sierra with 3500 miles

Sounds like you have the new 6-spd (2009 CC). Do you have the 5.3L? If so, what do you think of it? (ignoring the leak of course!)

Yes I have the 5.3 with 6-spd. I like it. I really don't have anything to compare it to. My truck before this one was a manual ford ranger 98. It seems pretty smooth. Great acceleration from 50-90mph. Stops/shuts off @ ~100mph.

Spurshot · February 17, 2009

Personally, I'd wait for the leak to grow a bit. Some leaking will be "within spec" is my guess.

BuckFeverZ · February 17, 2009

I would make a visit to the dealer and have 'em fix it.

mattgob86 · February 17, 2009

A leak should not be a "spec" at all its new. Take it to the dealer and let them deal with it

DBVille · February 17, 2009

Is it just too early in the morning, or is the new ATF (Dexron VI) blue? That looks rediish - like maybe engine oil or something else.

Take it back to the dealer. Some fluid loss may be "in spec" dripping is not.

superjim · February 17, 2009

Did you check to see if the transmission pan bolts were tight?

Five minutes with a wrench, may save you a trip to the dealer.

dansk · February 17, 2009

You should not accept any leaking as being "in spec". It's not right and should be fixed. Insist on it.

Rat4go · February 17, 2009

Can't tell for sure, but it looks like the leak is between the transfer case and the trans (it looks like 4wd based on what I think is the front drive shaft in one of the pix).

Note that it could be the transfer case, too. It also uses Dex fluid, but isn't supposed to share fluid with the tranny. (nor leak!). On other transmissions, the adapter between the trans and the transfercase is 'dry' but has a hole in it to let air/water out. This hole also lets fluid out if either the trans seal or the transfer case seal leaks into the adapter.

One of the drips in the pic looks like it's above the oil pan 'flange', so it makes me think it's not the pan/gasket.

No leak is 'in spec'.....Get 'er looked at.

Also, please post more details on what you like and don't like about the 5.3l/6-speed combo.

good luck.

VMax2007 · February 17, 2009

Personally, I'd wait for the leak to grow a bit. Some leaking will be "within spec" is my guess.

You are kidding, right?

J-man67 · February 17, 2009

Dealer time!

Personally, I'd wait for the leak to grow a bit. Some leaking will be "within spec" is my guess.

You are kidding, right?

+896 Thats like saying, "hey dude, your house is on fire, but its not the entire thing so just wait it out before doing anything about it."

Jnk · February 17, 2009

Lmfao @ Chuck, you are gonna get drilled for that one. I sure as hell wouldn't want to fly in that Ronald McDonald aircraft that's in your sig with a "spec" leak.