Question about 1999 Cadillac Seville

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Flush radiator and drain all oil from a 99 cadi seville

I have a crack in my engine so I am going to use nanotechnologu head gasket and block repair. It says to drain all fluids from the radiator and oil

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Try “autozone.com” or your local library for diagrams and step by step instructions and for GM parts if needed call Schram auto and truck parts 1-800-292-1032

Posted on Mar 08, 2009

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I pour water into my radiator and at the same time I have my oil plug out and I can see the water pouring through the oil pan I believe could ya help me out with this one


If water/coolant is coming out of the oil pan drain you have major problems. Possible internal cracked engine block/cracked cylinder head or bad head gasket.Do not run the engine as this will cause the bearings/motor to seize until it is fixed

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Oil in water


I am say this on the assumption that you have an automatic transmissionI. If so the oil in the coolant system will be automatic transmission oil from a cracked oil cooler in the radiator . A simple radiator replacement will fix the leak and a radiator /block flush will take care of the residue . Next thing if the car is running well then there will be nothing wrong with the head gasket or a cracked head as if these were evident the engine would be running like garbage. Next point if the head studs were un- removable because of stripping of the threads in the block then there is a product call HELICOILS that are screwed into the stripped holes and renew the threads back to new condition. So you want suggestions I suggest that these so called mechanics saw you coming and expect to make big bucks out of you. Find another accredited BMW service dealer or a qualified engine re-conditioning engineering shop. I suspect that you are being set up to be ripped off as a motor from the wreckers would cost less that what has been proposed for you.

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Engine oil mixing into coolant


The only place, oil and water share a gasket is the cylinder head gasket, oil and water galleries run through the engine block and head via the head gasket. The cylinder pressure will be OK, it's the oil pressure that's putting the oil in the coolant, the gasket has gone between the water and oil galleries or there is an internal crack (unlikely). A coolant pressure test should show it up.

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96 ford windstar when i put water in the radiator it comes directly out the oil pan plug i just replaced the head gaskets the heads are sitting flush and are torqued to specs


My statement would be, either one of the head gaskets is not on correctly, or you have a large crack in one of the heads, or the block.
Did you have the heads checked for cracks when you had them off the engine ? Was either gasket blown ?
There has to be a gap between a water jacket and an oil jacket for the coolant to enter the crankcase.

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I have a 1992 cadillac seville 4.9L i bought it knowing the head gasked was bad. was gonna use thermagasket try fix this problem. But have a pos bigger problem when I drained the oil it was full of water...


it could have a problem behind the water pump/ timing cover. bu *** could be head gaskets. DO NOT put anything to try to fix this, it will not work and cause more damage. but your engine is already damaged.

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I found oil in my water reservoir what happened its a 97 saturn sl 2


Check your radiator, your transmission cooler is built in you radiator and is leaking in your coolant.I hope this helps you?

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99 suburban, water leaking into the oil. the dipstick is milky. i had a new water pump installed a few years ago. just put a new serp belt, tensioner and alternator in after the car died on my wife. ran...


Sounds like either a blown head gasket, a cracked head, or a cracked block. The solution would be to determine where the coolant is getting into the oil and address that problem.

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My daughter's 2000 Altima looks like there is oil in the radiator and no oil in the engine. Is this a blown head gasket? Where is the drain plug for the radiator? Better yet, what is the process for...


Could be a blown Head gasket or cracked head. Should be a drain at the bottom of the radiator I think on the drivers side. You will need to pull the heads off and have them checked Magnifluxed for cracks. If they find none then install new head gaskets and see what happens. I have the torque specs for your head bolts if you need them. Let me know.

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Coolant turned into foamy grey gunky milkshake, oil level is low


If forced to guess, I'd have to say head gasket...but, could be cracked head also (can't really tell unless you tear it down, but to do the repair, either way that's what you need to do.) If residue was reddish, it could be the trans cooler in the radiator but it's not, so rule out radiator. Make sure you flush out system and change hoses during job ... oil softens them and makes them prone to failure. Even if head does not appear to be cracked, have it checked for warpage, sometimes they twist when overheated. Cracked blocks are rare...I would not be concerned unless engine was frozen during winter.

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I have a 05 grand prix with a 3800-v-6. have oil in raditor. 96000 miles. checking fluid in radiator noticed oil. before that i had a radiator flush. new radiator fluid too. the reservoir had some oil too.


Your head gasket is leaking, or you have a cracked cylinder wall.

chances are its the head gasket moreso than a cracked head.

grand prix are notorious for leaking head gaskets. have the block mic'd when you get it apart to make sure its not warped - if you put a new gasket in the same thing will happen.

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