"Low Coolant"
Thread Starter
Pro
Joined: May 2005
Posts: 635
Likes: 0
From: Cambria CA
"Low Coolant"
well, after adding a bunch of coolant over and over again and burping the system twice, I still get that Low coolant about a week after I fill her up.
But I finally made a break through, today I popped the hood and I could hear escaping air from the cap, it was slowly escaping. I wasn't sure if this means the cap is bad or if it means i have a leak somewhere in the system, or if the part under the cap is damaged.
but I hear the sound of escaping air at the cap. anyone know where I can get one, ordering online or autozone?
thnx a lot!
-Shawn
But I finally made a break through, today I popped the hood and I could hear escaping air from the cap, it was slowly escaping. I wasn't sure if this means the cap is bad or if it means i have a leak somewhere in the system, or if the part under the cap is damaged.
but I hear the sound of escaping air at the cap. anyone know where I can get one, ordering online or autozone?
thnx a lot!
-Shawn
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
Look here http://www.madvet.com/shop?frame=3.138.935 or http://www.ecklers.com/find.asp? or http://www.zip-products.com/Zip/prod...544C126C1FA568 Hope this helps!
Thanks,Matt
Thanks,Matt
Safety Car
Joined: Mar 2005
Posts: 4,723
Likes: 11
From: Winnipeg Manitoba, Canada
Isn't the air supposed to escape after you turn the car off? Isn't that its way of releasing the pressure?? You guys may have remembered my threads about my coolant issues. I've tried 4 different rad caps and they are do that after the car is shut off. I don't mean to hijack the thread Shawn 
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
No. The pressure is supposed to go back to where it came from. When the engine heats up the coolant, and the little bit of air, expand. The excess coolant is forced past the pressure cap (at it's release pressure) into the reservoir. As the engine cools after shut down, everything contracts and a vacuum forms in the cooling system. The properly operating radiator cap valve opens and coolant is drawn back from the below water level overflow tube in the reservoir. If the cap leaks pressure to anywhere other than the overflow, there will be less and less coolant to recapture and no vacuum to recapture it with.
RACE ON!!!
RACE ON!!!
Thread Starter
Pro
Joined: May 2005
Posts: 635
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From: Cambria CA
Originally Posted by CFI-EFI
No. The pressure is supposed to go back to where it came from. When the engine heats up the coolant, and the little bit of air, expand. The excess coolant is forced past the pressure cap (at it's release pressure) into the reservoir. As the engine cools after shut down, everything contracts and a vacuum forms in the cooling system. The properly operating radiator cap valve opens and coolant is drawn back from the below water level overflow tube in the reservoir. If the cap leaks pressure to anywhere other than the overflow, there will be less and less coolant to recapture and no vacuum to recapture it with.
RACE ON!!!
RACE ON!!!
Le Mans Master
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
On my 86E if I let the engine temp get to about 230* and shut it off I can hear a bubbling sound at the reservoir. If I shut the engine off at around 180-200* the sound is not present. But no air comes from the cap.
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Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Originally Posted by Shawn_65
would the cap leaking pressure to the overflow sound like I described? or would you not be able to hear it?
RACE ON!!!