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I have an 02 cr250, has great compression and new head gasket but still spills antifreeze out of the over flow at the top of the radiator and new cap, is it pressurized or something?

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Yes it is pressurizing and probably from a cracked head or a corrosion hole in the bore in the compression area of the cylinder. These would not show up in a compression test as the readings are low compared to the compression of an operating engine.

Posted on May 18, 2014


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Posted on Jan 02, 2017

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SOURCE: possible cracked block or head

Have you checed the thermostat, often when they are locked closed a vehicle will overheat and "regergitate" fluid through the overflow. And just so you know noone can tell by a "carbonation test if you have a problemb. (a carbonation test tells you af a change in ph.) wich is not always the affect or result of a blown head/ head gasket.

My sugestion would be change the thermostat. ($20.00) flush cooling system. (Do it yourself $15.00/ and a hose) Drain water and fill with 50/50 mix of coolant and water.

Posted on Jul 25, 2008

SOURCE: '97 subaru overheating

head gasket most likely.

Posted on Aug 31, 2008

  • 22246 Answers

SOURCE: blown head gasket??? 1992 toyota pickup 22Re

sorry i still think its a gasket problem,or water ports---but without bringing it to yard for me to have a look its a bit difficult and iam in spain.These *** motors use a smaller rad cap with two seals in ,so it can draw the coolant back in on cooling,but iam of the opinion that its drawing in a slight water ingression causing the idle problem.Go on give it a birthday and pull the head off and check its level and not warped ,also the water ports are not dissolved to any extent.

Posted on Jan 03, 2009

  • 1118 Answers

SOURCE: blown head gasket. what is the cause

Running hot will cause head gasget to fail. Or if head is not torqued properly, or a faulty head gasget. Pressure in cooling system means, blown head gasget or cracked head.

Posted on Mar 05, 2009

  • 534 Answers

SOURCE: 63k 1999 boxster have had antifreeze evaporating?

Check that you are not overfilling the cooling system.
Header tanks need to have some space for coolant expansion.
The system coolant level may stabilise at the lower level.

Posted on Jun 28, 2009

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2 Answers

Overheating when stopped. New thermostat, new head gaskets. Antifreeze will be boiling and spill out the reservoir no matter what antifreeze level is.

Check your fan, if it is electric fan, make sure it comes on. Check if your radiator is blocked or clogged, Remove it and get it inspected & cleaned by a radiator repair shop

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IF you have a viscous fan hub driving the fan then replace it with a new unit. IF electric fan/s then check fuses and fans for correct operation. Have a coolant system check done and have a flow test done on the radiator. Ensure that the radiator fins are not blocked up with mud/snow or paper/plastic. Have a compression test done to check for head gasket or cracked head.

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Thermostat replacement

have a pressure test done on the coolant system to check for leaks. have a compression test done to check head gasket and cracks.. Have a flow test done on the radiator to check for blocked cores. Check that the fan is operating correctly. check the radiator cap for operation.

Nov 10, 2013 | Land Rover Freelander Cars & Trucks

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Hard starting smell antifreeze

Souinds like beginning of blown head gasket. could be due to corrosion on either head or block. "Diesel knock" could be due to excess compression from water in cylinder (will explain steam, antifreeze smell).

Feb 27, 2013 | Cars & Trucks

1 Answer

1990 Honda civic si.....overheating...was told that head gasket is shot...done a compression test on all 4 cylinders...all had at least 135 psi or higher...antifreeze is oil...although overflow...

Hi, I have a way to test for a blown head gasket. Since you have good compression, yours would have to be small. Recommend you park on an incline, remove the radiator cap, set the heater on high, start the car and let it warm up until there is flow in the radiator. Fill the radiator and keep it full while the engine continues to run. Look for any bleed ports the system may have either in the hoses or at the attach point housings. Crack any bleeders open to allow any air out. Top off the radiator all the way to the neck and make sure there are no bubbles coming up. Bubbles coming out the radiator are an indication of a blown head gasket.
Please let me know if you have questions, and thanks for using FixYa.

Apr 09, 2011 | 1990 Honda Civic

1 Answer

No heat also overheats within 5 minwhen i drive it. new radiator new radiator cap new themistat.

seems like you might have a bad head gasket remove radiator cap and let it run. make sure the antifreeze is flowing if not it could be the water pump prop many car makers are using plastic props and they fail with time.also very possible that thermostat is bad was it overheating before it received a radiator ,cap and thermostat if so it is between head gasket.,and water pump but if you have no flow it is possible that the water pump prop is broken .there is head gasket test that can be done most shops have them and cost a little to be sure.

Nov 14, 2010 | 2002 Nissan Sentra

1 Answer

Over heating and anti-freeze spilling out of resevoir tank. New thermostat, new water pump, new resvoir tank, radiator 1 year old, new gasket seals. Can not figure out why it is leaking.

Your head gasket has blown or the cylinder head has crancked.You are getting compression in the water system thats why you are getting spill out from resevoir tank.

Jul 29, 2009 | 2000 Ford Taurus

3 Answers

02 impala heating up

Have someone take a look at your lower intake manifold. I had the same problem and found out there was a leak there and had to replace the gasket, which is very common for this vehicle.

Jul 25, 2009 | 2002 Chevrolet Impala

1 Answer

63k 1999 boxster have had antifreeze evaporating? Living in Desert. Oil is clean, no leak in head gasket. No spills on garage floor. Fill over flow 6 to 8 oz about every 1500 miles? I'm still learning...

Check that you are not overfilling the cooling system.
Header tanks need to have some space for coolant expansion.
The system coolant level may stabilise at the lower level.

Jun 28, 2009 | 1999 Porsche Boxster

2 Answers

1996 ford escourt overheating. changed waterpump and thermostat.when filling radiator it blows antifreeze all the way up on winshield.iput the cap on and it blows the antifreeze in over flow bottle.i also...

If you crank or start he engine and the antifreeze blows out for the radiator it is due to blown head gasket pushing cyl. compression into the cooling system. The head will have to come off.

Feb 22, 2009 | 1998 Ford Escort

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