Question about 1993 Geo Prizm

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Radiator is over heating. using water nfrom the resivor.

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First I'll ask a question well maybe more, has it ever boiled over,or any leaks ?If not Have you pulled the dipstick if you see a milky looking film or water or a smell like coolant any or all of these could mean a cracked head.Hope this helps, Good luck

Posted on Jul 10, 2010


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The water is not hot at all but the radiator is shooting the water out of the cap, and sending the water to the resivore and makes the resivore over flow.

Sounds like you may have a bad radiator. It may be clogged and the coolant is not able to go through it causing it to come out the cap and reserve tank.

Jul 29, 2014 | 1995 Oldsmobile Cutlass Supreme

1 Answer

Overheating constantly

Thermostat needs changing?
Thermostat WAS changed but is upside down?
Water pump not pumping - sloppy pump belts?
Radiator is blocked - Run hose backwards through the radiator

Dec 31, 2012 | 1992 Toyota Tercel

1 Answer

Antifreeze pushing cap on over flow resivore and low heat .Could this be a leaking head gasket? antifreeze not draining back out reservoir

It sounds like you need a new Radiator cap for the overflow style Radiator. The overflow style has a recovery vent which draws the water back through the radiator neck and into the engine. Low heat levels are also a sign of a water shortage.

Your antifreeze strength needs to be 50/50. This sounds like there is an ice block inside the Radiator or engine. Get the strength of the antifreeze tested.

You could have an internal leak; you need to have the system pressure tested. The overflow tank should drain back into the radiator and it relies on a sealed system to work. If you have a leak, there will be no Vacuum pressure to draw the antifreeze back into the engine.

It could be a head gasket leak, or a leaking heater core, or bad radiator or a bad hose. The pressure test can be done by anyone with a gauge. You could try Autozone or Oreillys for their loaner tools. Ask for a Radiator tester pump. You can also have the cap checked.

Radiator and A/C shops do this test routinely. A real Service station used to do this routinely until they went self-serve.

I hope my solutions give you a few alternatives because a head gasket is a costly repair. I hope you find my solutions very helpful.

Dec 14, 2010 | 1994 Mercury Sable

1 Answer

Daughters 1999 turbo bettle started overheating today. Red light appeared on dash. water gushed out when resivor cap removed. engine [while running] would not take new water, water kept gushing back. then...


Aug 21, 2010 | Volkswagen Beetle Cars & Trucks

1 Answer

The plastic resivor for the radiator is leaking

you should be able to change it your self with a few bacis tools . refill with coolant and run engine till oprating temp checking water level. be carefull when hot !!!

Aug 01, 2010 | 2003 Kia Sorento

1 Answer

Over heating

im not sure if the 2004 m45 is quite the same,but check the oil level in the pump resivore for the fan,if its the same then it has a hydralic fan.The resivore is located under the plastic cover between the engine and radiator closer to the drivers side and it looks like its for the power steering pump oil.It has 2 lines,1 goes to the radiator,or cooler in the front of the radiator,the other 1 goes to the fan .

May 09, 2009 | 2005 Infiniti G35

1 Answer

There is a cluster of hoses off of the top radiator hose

Sounds like air is in the system, probally because it's overheating. Check the water pump. The impellor is plastic and breaks causing 0 circulation.

Jul 27, 2008 | 1998 Volkswagen Beetle

2 Answers

Engine is over heating and blowing air into coolant resivor and boiling coolant

The blowing of air into the coolant resevour is caused by a leaking head gasket. What's happening is the cylinder is blowing air into the cooling system causing this to happen.

Jun 24, 2008 | 1996 Chrysler Cirrus

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