It looks like oil in my radiator, I have drained it and cleaned it out car never over heats I have asked around and been told that it has something to do with the antifreeze that gm uses I have had the car for three yaers and its always been like that has anyone else have had such a problem.
2006-12-20 02:37:16 · 15 answers · asked by victor m 3 in Cars & Transportation ➔ Maintenance & Repairs
I'm a little confused when you say oil. Does it just look like oil or is it more of a brownish sludge. Gm had a problem with their 3.6 liter engines when they decided to use a plastic intake manifold. The problem was in the egr passages. Overtime the exhaust gases would eat through the plastic and enter coolant passages... The first signs of this was usually a thick brownish sludge found in the radiator. Have your coolant system pressure checked. If the plastic intake is the problem, you can buy a new one at any good parts store for around 150$
2006-12-20 20:27:33 · answer #1 · answered by yourboytee 2 · 0⤊ 0⤋
Oil in your radiator is not normal.
I would suspect that someone added a coolant additive to the antifreeze. When that stuff saturates the coolant, it often leaves an oily film with what's left over. If it doesn't look like chocolate milk, you are probably fine.
Just to be sure, have your coolant system flushed and filled at a quick lube shop, and see if the problem continues. If it does, you have a very small leak in your head gasket somewhere that needs to be addressed.
Hope this info helps. Good luck.
2006-12-20 02:49:23 · answer #2 · answered by Lemar J 6 · 0⤊ 0⤋
Buick Radiator
2016-11-05 03:44:20 · answer #3 · answered by pavolini 4 · 0⤊ 0⤋
If you are asking about why the anti-freeze is brown I know the answer. GM uses silicate free anti-freeze. Silicates are the primary ingredient that causes normal antifreeze to be pigmented that weird shade of green. It does look like oil, however, its consistency is much thinner than oil. I know it looks weird but that is what is supposed to be in there. If you add regular antifreeze you will need to look for a new car because it will do significant damage to the cooling system.
2006-12-20 02:47:32 · answer #4 · answered by ncpropes 3 · 0⤊ 0⤋
It is the antifreeze. Dexcool is what is used in the Gm cars and trucks. If you car has a 3.1 engine watch for intake and head gasket leaks. I have the same stuff in my Venture van.
2006-12-20 03:05:08 · answer #5 · answered by Mona 2 · 0⤊ 1⤋
bad head gasket. very common on GM vehicles. going on 25 years now it's like a 10 hour job at the GM garage.
you'll need to change that head gasket. then change the oil and take it to a shop to flush the cooling system.
2006-12-20 03:07:33 · answer #6 · answered by assmouth p 3 · 0⤊ 0⤋
check it to see if its dis-colored any at all its not normal for oil to be found in the radiator or the coolant bottle,the last one i seen that done this,,has a head gasket seeping real slow on it,,and was allowing oil to get i that way,,take it by a local garage,and see what they say about it,,good luck,hope this help,s.,,have a good x-mas.
2006-12-20 02:42:25 · answer #7 · answered by dodge man 7 · 1⤊ 0⤋
It's the lower intake manifold gaskets. I see this all the time. I also hear about it on Iatn(International Automotive Technician's Network). Take it to a reputable repair shop. I'm sure they have also seen this before.
2006-12-20 04:58:02 · answer #8 · answered by bbking48507 5 · 0⤊ 0⤋
GM is having huge legal problems over these type of coolant problems. I would be contacting some one for legal representation.
2006-12-20 03:17:48 · answer #9 · answered by bwc0356 2 · 1⤊ 0⤋
theres a certain amount of lube in anti-freeze,to keep the water pump lubed up.also what i do is i put 1 little cap(off of a oil can)and i put it in my radiator,to help to lube the water pump.it wont hurt anything.i did that for years.
2006-12-20 02:44:44 · answer #10 · answered by Anonymous · 0⤊ 1⤋