1991 Chevy Corsica Coolant leak from firewall valve

Tiny
TMROY42
  • MEMBER
  • 1991 CHEVROLET CORSICA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 160,000 MILES
When I fill the radiator, after about half of what I normally put in, coolant begins to pour out of a valve coming out of the firewall. If I stop filling, it stops dripping after a while, and when I put more in, it continues to come out. When the car is running, no matter if heating or air are turned on or off, a steady stream will continue to come out of the valve.

The valve is a black valve, slightly to the passenger-side of center, with a black rubber elbow fitting pointing straight down. (It is located next to a long metal hose that carries coolant through the firewall, under the car, and back out next to it.) I can't find any other place this might be able to connect with to close the gap in the loop. Any ideas?
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Monday, April 14th, 2008 AT 1:30 PM

3 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
The heater core is leaking and you need a new one.
U should have it checked and replaced
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Monday, April 14th, 2008 AT 1:36 PM
Tiny
TMROY42
  • MEMBER
  • 2 POSTS
Thanks.
What would you consider a reasonable price for that?
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Monday, April 14th, 2008 AT 3:06 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Around $450 but you should shop around
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Monday, April 14th, 2008 AT 6:41 PM

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