Question about 1994 Oldsmobile Achieva Special Edition

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Why would antifreeze be coming out the evaporator overflow valve?

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  • Jeremy W.
    Jeremy W. Oct 15, 2010

    there is no evaporator overflow valve.

    Is there another description you could use?

  • antoris Oct 15, 2010

    what besides the heater coil goes through the firewall?



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  • Oldsmobile Master
  • 5,332 Answers

The evap drain? Towards the lower part of the firewall about in the center or slightly to the passenger side?

If there is coolant coming out of that than the heater core is leaking.

Posted on Oct 15, 2010


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Has The 2003 X-type 2.5 L 6 cylinder had problems with antifreeze evaporating?

Coolant doesnt evaporate if you dont see coolant leaking so it must be burning it thats not good karen i incleded a video i personnely change a few overflow thank on those x type

Mar 29, 2015 | Cars & Trucks

1 Answer

Heater core

Sounds like a bad heater core. You will get steam/vapor out of vents from this. If you are referring to the over flow tube being the evaporator drain tube at the firewall its because the heater core shares the same case with the A/C and its filling up with anti-freeze.

Feb 24, 2013 | 1992 Pontiac Grand Am

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How to release air from the radiator

These can be a real pain. There is a bleeder valve where the top radiator hose attaches to the engine. Open it with a wrench or pair of vise grips. Top off the overflow container and start the engine. Let it run and when antifreeze starts running out the bleeder top it off in the overflow then tighten the bleeder. I have also had to take out the thermostat and fill the engine block with antifreeze before doing the above.

Jun 30, 2012 | 1995 Dodge Intrepid

1 Answer

I cant find where the radiator cap is on my 97 jetta glx to refill the radiator the reservoir is full just need to fill the radiator but dont know where???

Your overflow cap is your radiator cap. What you may want to do is check the thermostat housing for a bleeder. Just in case the thermostat housing is where your upper radiator hose mets your engine. On top of it may be a bleeder valve. Let the car come up to normal temp and open the valve slightly until antifreeze comes out then tighten it up.

Mar 26, 2011 | 1995 Volkswagen Jetta

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Why is the car leaking antifreeze?vehicle leaking antifreeze and i do not know why, from where?

First check hoses and water pump while car is hot and running. If you find nothing then let car cool down and fill overflow container. Get engine hot again. When engine is hot turn off car and check the overflow tube coming out of the overflow tank. If it is spitting antifreeze then you have air in the system. Bleed system by opening the 7mm bleeder. You may have to do this a few times until all air is out of the system and overflow stops spitting antifreeze.

Sep 18, 2010 | 2001 Chevrolet Malibu

1 Answer

My heat is not working in my car. i tried first

There won't be a "valve" to put antifreeze in. There will be a radiator overflow tub. This will be located off the side of the engine compartment, near the front corner. (To locate, follow the overflow hose from the radiator cap to the catch tub.) You can replace radiator fluid in there, or in the radiator itself. That should get you some heat.

Mar 22, 2010 | 1999 Ford Expedition

5 Answers

Overflow in car is bubbleing after i shut it off.

possible head gasket problem--- trade it in quick

Apr 02, 2009 | 1995 Dodge Stratus

1 Answer

Oil in the antifreze over flow tank

Yes, oil in the antifreeze typically comes from a blown head gasket. To verify, start the truck and watch the overflow tank you should see what looks like a back flow or bubbles. By the time the truck get to normal temp, it'll be obvious.

Feb 23, 2009 | 1993 Chevrolet K1500

1 Answer

Antifreeze comes out overflow and the van gets hot idling


Feb 05, 2009 | 2001 BMW 5 Series

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