Question about 1991 Buick Regal

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Why does the radiator fluid in my 1991 buick regal look like chocolate milk?

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1-If you open your oil cap and seeing a milky stuff at the inside cap, then there is a leak in head gasket. coolant mixed with oil through head gasket leak then vaporize leaving the milky stuff at your cap. 2-If you don't see it then there is possible transmission get into water. When you are running, the pressure from transmission is higher than coolant pressure so it leaks into your coolant thru transmission cooling coil in the radiator. 3-Need to address this as soon as possible since chance of car not running in the middle of a trip is high also consequences of problems are more costly. Good luck.

Posted on Jul 15, 2009

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Head gasket leak and a intake gasket leak make antifreeze.look like chocalate milk shake.

Posted on Jul 17, 2009

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May have oil in it. You need to flush and refill at least once every two years.

Posted on Jul 14, 2009

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Posted on Jan 02, 2017

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98 civic ex ,how do I jnow if head is blown ,,dies nit turn iver


First check your dipstick see if the oil looks like chocolate milk. Secondly check your radiator fluid make sure the engine is cool. See if you have oil droplets in the radiator the oil will float on top. You can also pull out one spark plug at a time to see if there's any moisture on the plugs. And finally I can't even make out what the last thing you're saying. Good luck

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Your radiator is connected to the transmisiom to cool the transmission. the tank in the radiator has ruptured and transferring fluid to where it should not be. solution replace radiator. This will transfer trans fluid to cooling system and vice versa. I can not see the trans oil ending up in the engine oil sump for any reason?

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The radiator has an internal trans cooler that must be leaking, the radiator needs to be replaced and the cooling system flushed of all the trans fluid. Usually the radiator hoses and hoses going to the heater core will need to be replaced because the trans fluid will soften the rubber and make them swell. Good luck, Honda Al

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if it runs on starting fluid its a fuel problem.. check fuel pressure even if its a couple of pounds off, the vehicle will not run. but using starting fluid may give you the extra poundage you need to make it run . also check vacuum hose at pressure regulator on fuel rail

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