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this is a real head scratcher...any logical explanation?

1.5K views 13 replies 8 participants last post by  matt167  
#1 ·
This isnt a hot rod but maybe yall can make some sense out of it. I have a 1991 ford ranger 2.8 v6 5 spd which ran hot one day and I noticed nasty oily substance in radiator so naturally assumed head gasket gone. Ive refilled it 4 times with water only and drained it nd every time it comes out oilly with a strange smell. But heres the kicker...theres no water in my engine oil? And I haven't lost any engine oil?? So what could possibly be getting in my radiator??
 
Discussion starter · #11 ·
And yes its like rusty water but very thick. But it has the weirdest smell thats wat kept telling me there was sumthn different goin on. But I really appreciate all your replies I got a feeling you have solved this mystery. I will pressure test today and check it out a little further. Ill keep you updated!
 
Discussion starter · #7 ·
How long have you owned the truck?

From the description it kind of sounds like somebody may have put block sealer in it, and now it is getting stirred up and coming out.

One of them has a red color if I recall correctly, maybe k&w?

They definitely have a distinct smell, I find the reddish color and smell a dead give away.

Edit Note: Napa, and others I'm sure, sell a tester for head gaskets. Its a plastic tube affair with a suction bulb at the top. You put some of the supplied liquid in it and if it changes from a blue color to a yellow then combustion gasses are present in the coolant. I think its like $20 or so, another testing option.
Yes!!! Heres the kind of answer I was looking for! Because theres something goin on here besides regular old blowed head gasket andccit has me puzzled but ive owned the truck 2 years put about 30000 miles on it and have never used any of that crap. So is it possible that it was put in before I got it and is just now coming back out?
 
Discussion starter · #4 ·
Thanks for the fast replies!! I did plan to do a pressure test if all else failed. Several people talk about trans fluid getting into cooling system but ive traced everything down and see no way the tranny is tied into the coolant. And I do agree it doesn't take much oil to look murky but what got me is three times in a row filling with nothing but water and draining after it gets up to temprature every last drop that came out was discolered and very thick(causing me to assume alot of oil got in it) But when checking oil it hadnt lost a bit according to dip stick and not a drop of water in the oil. And the water has the strangest smell when drained and the color is very red, it actully stained the fan shroud red wher it spewed out.Thats when I started searching for other answers besides engine oil. But logically there is no other answer