Newest Gallery Photos

  1. Chevy Truck Forum

    Welcome To!

    The #1 Chevy Truck Forum Online

    Online since 2004, we're the #1 Chevy Truck & SUV user community. If you have any questions about your Chevy or GMC Truck, SUV or Crossover, or just want to connect with other GM owners and enthusiasts around the world, you've found the best place on the internet to do that.

    Join Today ~ It's Free

    Registering is Free and Easy! Do it today and we'll see you on the forums soon!

wheres the leak?

Discussion in 'GM Powertrain' started by big bopper, Jun 14, 2010.

  1. big bopper

    big bopper Member

    most definatley pi55ed off, just found this under the van


    definatley transmission fluid, and its dripping of the propshaft UJ,



    but how the feck is it getting there? the input shaft is bone dry?



    ok you mechanic guys, solution time please my idea of a box of matches has been turned down by Karen :no:
  2. phoebeisis

    phoebeisis Epic Member 5+ Years 1000 Posts

    Hmmm, that is s tough one.

    I have to ask, but I'm sure you are right-Any chance it is that red coolant-Dexcool(deathcool to some)?? Has that slippery feel like transmission fluid not the watery feel of coolant? Via eyeball it looks like what you say- trans fluid-looks too thick to be coolant.

    If your pan gasket has a leak maybe it could get blow backward onto the driveshaft-BUT I would expect it to be blown backward onto everything-not just that U-joint.

    No spray everywhere underneath?

    Tough one-I hate screwy leaks.

  3. big bopper

    big bopper Member

    no not Dexcool, the coolant in my van is a blue colour, and no theres no sign of a leak at all from any where, the pans bone dry, the shaft is dry (apart from my oily finger print) just one damp patch on the end of the shaft in the UJ, but i thought these were solid and not hollow?:neutral:
  4. big bopper

    big bopper Member

    seems like i have a leak in the end, so off it comes for a bit of welding :lol:



  5. phoebeisis

    phoebeisis Epic Member 5+ Years 1000 Posts

    Leaking down the middle of the shaft and then leaking to the outside??

    Wow, that is a new one on me.

    Is your transmission dip stick low?? How much fluid are you leaking?

    I would watch it for several 100 miles- and see if it is leaking much.

    Peculiar leak-never heard of that kind of leak.

    Check to see how much fluid you are losing.

Share This Page