Milky coolant

[cucveg]

To make a long story short, I just bought a really straight 83 GMC 3/4 4X4 with a 6.2L, Banks Turbo, and a US Gear "Dual Range" splitter. The ears broke off of the torque converter so I bought the truck from the previous owners as they were leaving town. I was assured that the truck ran great and the only problem was the torque converter. And to tell you the truth I believe the guy, seemed like a straight shooter. Pulled the engine oil dip stick, everything normal. No condensation no discoloring just oil at the full mark. For some reason I decided to pull the radiator cap and look inside. Looks like skim milk with about 50% more water. What do you think? Is this normal or do I have the truck crushed tomorrow?

Help please.

David

[redbird2]

no that's not normal however I first I test the cooling system for combustion gasses and pressure test for leaks, would then flush everthing out really good and refill with good 50/50 mix and run the truck to see if problem comes back.

The ony thing I can thing of that might give you the milky look is Bars stop leak it kinda looks milky when disolves in water.

if you are not sure or don't have test kit to do the compresion gas test in anti freeze call around to local shops and see if they have the tester to preform this test. I purchased the one I have at napa few years ago thing kit ran $60. can use over and over again it have the instruction in the kit easy to use.

good Luck keep us posted.

[cucveg]

Thanks redbird. Another update; a buddy of mine said it sounded like ATF in the water. He said that the cooling coils will crack in the radiator tank and begin to mix fluid. So I called a radiator shop, they said they could pressure test it and all that but they didn't believe it was the radiator. They said they've seen this a lot, especially with the Ford diesels, and its diesel fuel in the coolant! No I've given this a lot of thought between all the other crisis' today, but I figure out how in the blazes you could ever get diesel in the coolant. What do you guys think?

[bcbigfoot]

I've had trans fluid get into my rad and coolant into the trans. through a newly installed rad. I caught it in time so it didn't take out the trans but what a PIA. I would drop the trans pan and see if there is any coolant in there, maybe thats your trans trouble. If there is coolant in the trans you will need to rebuild or the next time you heat up the trans all the friction plate material will come apart and make a real costly mess.

There is no way diesel could get into your coolant on a 6.2, just on some Cummins engines and maybe possible on the old Detroit 2 strokes were they run fuel through the heads of the engine.