|03-07-2010, 03:09 PM||eBay Motors #1 (permalink)|
Join Date: Mar 2010
Antifreeze mixing with transmission Fluid
I have a 2002 Truck and noticed today that the radiator overflow was leaking all over. I thought the worst " head Gasket". What has actually happened is leaving the transmission entering the bottom of the radiator is a line it then exits from the top of the radiator and enters the external transmission cooler and then back to the transmission. Inside the radiator there must be a crack since the transmission fluid is mixing with the radiator fluid. I am somewhat relieved, but also confused as to why they are using the radiator in the first place? I want to disconnect and plug the lines to the radiator and have the lines go direct to the cooler and back. I do not know if I can do that or not?
|03-07-2010, 03:15 PM||eBay Motors #2 (permalink)|
Join Date: Feb 2009
Location: Upstate NY
Glad to hear it is not headgaskets, as far as your idea, temporarily probably would not hurt as long as you do not do anything too stressful on the tranny. I would be sure to keep a closer eye on the trans temp though.
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|03-08-2010, 01:06 AM||eBay Motors #3 (permalink)|
Join Date: Oct 2006
Location: Irwin PA
Welcome to the forum!
Ya most automatic vehicles use the radiator to cool the trans.
But, Incase you havent thought about it I would definatly completly change the transmission fluid and antifreeze. Especially the trans. You dont want water ruinning threw there
2006 Silverado 2500HD LBZ CC SB
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|03-08-2010, 05:56 PM||eBay Motors #4 (permalink)|
Join Date: Jan 2010
Drain the trans, change both the internal filter and the spin on, wipe out the pan with a clean lint free cloth. Then do what they refer to as the 'hoot' method for getting most of the fluid out of the lines and torque converter. For your situation, count on using in the neighborhood of at least 20 qts of ATF. Cheaper than a new trans. You might even consider doing the 'hoot' a second time after you have driven the vehicle a few miles.
This just happened to a friends Mercedes, same issue, but it wasn't caught in time, had to have the trans completely rebuilt, including all new internal electronics.
The radiator is used as a pre-cooler in summer and a heater in the winter.
A good radiator shop can replace the end cap of the radiator that contains the trans cooler. This is not something you want to let slide. Good luck.
07 LBZ 4X4 CrewCab/SB
Last edited by BIOTEC; 03-08-2010 at 05:59 PM.
|03-09-2010, 08:10 AM||eBay Motors #5 (permalink)|
Join Date: Jun 2008
Location: So. Cal
I agree with Biotec-- this may save the trans.
Chevy 04.5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep pan, de-badged, 65 Gallon replacement Aero tank, LBZ-mp, Kennedy pump, shimmed, Pre-fuel filter, tow mirrors, BU cam, gauges, GPS, Sirius, bags, custom grille, fender vents, HD trans cooler- Curt front hitch, footwell lights, load lights, Studs, head gaskets.--- Jerry
|03-09-2010, 10:59 AM||eBay Motors #6 (permalink)|
Join Date: Feb 2010
'08 cc/sb 4x4