Coolant tank overflowing
Thread Starter
Junior Member
Joined: Apr 2007
Posts: 27
Likes: 0
From: Clovis, CA
Car: 1991 Camaro Z28
Engine: 305 TPI
Transmission: T-5
Axle/Gears: LS1 3.23
Coolant tank overflowing
I have a 91 Z28 with a 5.0 TPI. When I was warming up my car this morning, i noticed that the coolant overflow tank was filing up and overflowing out of the tank. The temp began to climb as well. I didn't notice any coolant leak around my water pump as I thought it was not circulating. Do you think my thermostat is not opening? I touched the top radiator hose and it wasn't hot even though my temp was well over 220 degrees. Any input will be appreciated. Thanks
Joined: Aug 2006
Posts: 12,789
Likes: 94
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Coolant tank overflowing
was the tank just filling up or was it bubbling?
Joined: Oct 2001
Posts: 12,211
Likes: 1,135
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Coolant tank overflowing
could b cap or T-stat. worst case is head gasket.
Thread Starter
Junior Member
Joined: Apr 2007
Posts: 27
Likes: 0
From: Clovis, CA
Car: 1991 Camaro Z28
Engine: 305 TPI
Transmission: T-5
Axle/Gears: LS1 3.23
Re: Coolant tank overflowing
it was just filling up.....I hope everyone is right that it is just the thermostat or radiator cap.
Joined: Aug 2006
Posts: 12,789
Likes: 94
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Member
Joined: May 2011
Posts: 151
Likes: 5
From: patterson, ca
Car: 1986 iroc-z
Engine: 5.0 tpi
Transmission: 700r4
Axle/Gears: stock.
Re: Coolant tank overflowing
if its a cap thats not holding pressure it would boil at a lower temp and the top hose would be hot, since the hose is staying cold the tstat is stuck shut.
Thread
Thread Starter
Forum
Replies
Last Post
