Question about 1997 Chevrolet Blazer

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Overheating, water in oil

Water in oil in my 97 blazer 4.3. With engine not running I drained the oil and while the oil was draining I topped off the radiator planning to replace the contaminated oil with fresh oil and take the car for a test drive to assess the engine damage. it had overheated and the engine oil turned milky brown. after topping off the radiator I looked under the car to see if the oil was finished draining and saw water pouring out with the oil. I topped off the radiator again and watched to see if the coolant level fell again. It did. how bad is the engine damage. I am not familiar with the anatomy of a 4.3. oil mixed with coolant spray from somewhere on the back of the engine when it is running at operating temp but there is no oil in the coolant.

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  • blueextc3221
    blueextc3221 May 11, 2010

    Head gasket is blown.

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Your radiator oil cooler went bad and coolant got in your oil so replace the radiator the cooler is built in!

Posted on May 14, 2009

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Very bad. You blew the head gasket and most likely warped the head if not cracked it.

Posted on May 12, 2009

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You have a bad head gasket. You will not know how bad the damage is until the engine is disassembled. Chances are, a head has warped though, and will need to be machined.

I hope this helps you, and I wish you luck on your repair.

Posted on May 12, 2009

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1 Answer

I have a 97 Ford Taurus I put Marvel oil in it you have been driving for 30 minutes now it runs real real bad lost power overheating and smoking


Umm...

Overheating is either a sign of a thermostat/radiator fault, a coolant leak or a leaking cylinder head gasket.

Smoking is either due to overfilling with oil, worn valve seals or worn piston rings/worn engine.

If the trouble started when you topped up with oil, drain the oil system and try a different oil.

Nov 07, 2015 | Ford Cars & Trucks

1 Answer

Car won't start


old post , no year car, 1989 to 2002
there are 3 engines, 2 up to 1998. all made by toyota
overheating is it,
forget all else. FIND reason for overheating, coolant lost top list.
if loosing coolant that is #1 above all else. find cause.
but
overheating KILLS all ENgines. if not cured fast.
warps heads
is it pinging? that too kills engines.
your engine should never overheat unless it has cooling problems or.

unless the head is warped now, it will overheat, due to coolant loss
is it loosing coolant every hour or day?
CRANKING ALL ENGINES THAT DONT START DRAINS ALL BATTERIES, IT'S NOT a SYMPTOM IT'S NORMAL FOR NOSTARTS. (starter sucks 100 amps from battery every try)


id do a compression test first.
look for coolant in these spots
1: pavement below car.
2: passenger foot wells. (heat core leaks)
3: low radiator at neck cold show no coolant seen there.
4: in the a/t transmission, turns AFT to chocolate milk.
5: water in the engine oil pan, and or the reverse.
oil in the radiator, or side tank.
do all you can to not overheat any engine, and keep the repair bill like 1/3 or less. of BOOM

Apr 09, 2014 | Geo Prizm Cars & Trucks

1 Answer

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.

Jan 23, 2014 | 2012 Kia Sorento Base 4dr SUV 2.4L 4-cyl....

2 Answers

Instructions on how to use holts wondarwald


Holts Wondarweld
Flush engine.
EXTERNAL CRACKS
1 Run engine until hot,drain off enough coolant to remove thermostat.
2 Remove thermostat.
3 Mix contents of can thoughoughly! and pour contents into thermostat opening.
4 Replace thermostat cover.& fill radiator with hot water,replace radiator cap.
5 Run engine at a fast idle for 15 mins,dont allow to boil.Top up if necessary.
6 Leave Wondarweld in system for 2-3 days then drain off,flush system replace thermostat and refill.
HAIRLINE CRACKS
1 MIX thoroughly and pour into cold engine (radiator if it has a cap)
2 Run engine until hot.
3 Allow engine to cool then run again until hot.
4 Follow procedure 6 above.
INTERNAL CRACKS
1 Follow external crack instructions except after pouring Wondarweld into engine remove spark plug from
affected cylinder and run engine for 20 mins. If more than one cylinder affected run for 5 minute intervals.
2 Allow engine to cool then drain cooling system and refill with clean water.
3 Drain sump & flush,refill with fresh oil.
Note:- 1/2 pint of Wondarweld for every 6 pints of water,DO NOT add antifreeze for at least 3 days after process.

Aug 05, 2012 | Cars & Trucks

1 Answer

Losing oil and water but its not mixing and shows no oil pressure


No oil,pressure is very bad.
are you sure it's not water in the oil making it so thin it can't build oil pressure?
How does car run? Not that you want to run it without oil pressure, I should ask, how was it running last time?
I would drain about a quart from oil drain plug and check it. If there's water it will come out of drain plug first. If it's good, you have "3" problems: where is oil going? where is water going? why no oil pressure?
A compression test on your engine's' cylinders will confirm if it has a head gasket problem. That's very possible if you can't find external leaks.

Oct 22, 2011 | 1997 Chevrolet Blazer

2 Answers

I have oil in my radiator like thick sludge, motor still runs well , is it the head gasket


You have got it right. The head gasket is defective and is allowing combustion gases and oil into the engine waterjacket and radiator. (Usually caused by allowing engine to become excessively overheated when cooling system has run dry and warping the head). The only fix is to have the head removed, machined to ensure the mating face is true and replaced with a new gasket. The valves may also require attention while the head is off.

Nov 22, 2010 | 1990 Daihatsu Charade

1 Answer

My son's car overheated. Went to get some anti


The overheating is caused by the sludge. It is very easy to correct this problem. Remove the radiator cap and open the drain valve at the bottom of radiator. If possible, remove the reservoir and flush out with water. Make sure to get all sludge out of reservoir, then reinstall. Once the radiator stops draining, insert water hose (without nozzle) and turn water on. Keep the drain valve open. Run water through radiator until it runs clear. Once it runs clear, start the engine and let it run while keeping the water running through radiator. Allow engine to run until the thermostat opens up. Continue running water through radiator with engine running until the water from drain runs clear. Once you have done that, turn off the engine. Close the drain valve and refill radiator with proper mixture of coolant and water. Once radiator is filled, start engine and let circulate through engine. Coolant level will drop as the coolant starts circulating. Shut off engine and top off radiator. Fill the reservoir with the required amount of coolant. Testing the coolant at least once a year will help prevent this from happening again. Coolant should be replace a minimum of five years, less if coolant bottle specifies.

Jun 20, 2010 | 1994 Pontiac Grand Prix

1 Answer

How do i drain the radiator and flush out on a 1999 chevy blazer?


open the drain valve on the bottom inside of the radiator, run the engine with the garden hose in the radiator cap, have the heater switched on high temp.  After the water comes out clean, turn off engine and let all water drain out.  Replace with 50/50 mix if distilled water and antifreeze.  Collect old antifreeze as it is very toxic and poisonous. 

Mar 11, 2009 | 1999 Chevrolet Blazer

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