C-4 overheating issues
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
Check between the radiator and the condenser for debris build up. Are you loosing coolant? If your coolant level is dropping and you don't see any leaks external, you might have a blown head gasket and the coolant is squirting into a cylinder and burning off. Your Chev dealer could have checked this. They have a tool that can test the coolant to see if there are exhaust gases in the coolant...indicates a blown gasket.
Drifting
Joined: Aug 2002
Posts: 1,775
Likes: 125
From: Birmingham AL
Two simple things come to mind before getting into the bigger troubles listed above.
Was the system properly filled? If not then an air bubble in the cooling system can cause problems.
Is the coolant mixed properly. It should not boil at 220 deg. As we all know, water alone will boil at 212 and if the system had barely any coolant, then the boiling point would be low.
I know that this may seem obvious, but I'd hate for a simple issue to get expensive.
Was the system properly filled? If not then an air bubble in the cooling system can cause problems.
Is the coolant mixed properly. It should not boil at 220 deg. As we all know, water alone will boil at 212 and if the system had barely any coolant, then the boiling point would be low.
I know that this may seem obvious, but I'd hate for a simple issue to get expensive.
Former Vendor
Joined: Nov 2006
Posts: 2,482
Likes: 3
From: Carmichael ca
It shouldn't be boiling over at 220. Did anyone try replacing the cap? You can buy a block tester kit at your local parts store to check the headgasket. I'm not sure I'd go back to that dealer though, looks like they sold you a lot of stuff you didn't need.
Thread Starter
7th Gear
Joined: Sep 2010
Posts: 7
Likes: 0
1989 Corvette over heating
[QUOTE=1911fool;1575408967]Look between the condenser and radiator. I would bet it is full of stuff. Also make sure your fans are working, the relays go out quite regularly.
You were 100% right. It had a ton of leaves an some tar paper. Real weired. It now runs around 198 to 210. depending on the air-conditioner
Thank you! Dale
In addition I would like it be known that Bobby Layman at 3900 W Broad St, Columbus, OH is not a place you want to work on any car. They ripped me off for over $400.00. They had my Vette for two weeks, charged me for unnecessary repairs. I call on the weekend before I picked up my Vette and they said they had to pull the heads off and that car had been raced at National Trails. Not true! The manager said he would take care of all my issues. Not true! He has avoided all my calls. I am turning this into the BBB
You were 100% right. It had a ton of leaves an some tar paper. Real weired. It now runs around 198 to 210. depending on the air-conditioner
Thank you! Dale
In addition I would like it be known that Bobby Layman at 3900 W Broad St, Columbus, OH is not a place you want to work on any car. They ripped me off for over $400.00. They had my Vette for two weeks, charged me for unnecessary repairs. I call on the weekend before I picked up my Vette and they said they had to pull the heads off and that car had been raced at National Trails. Not true! The manager said he would take care of all my issues. Not true! He has avoided all my calls. I am turning this into the BBB
Last edited by Ghostwalker1989; Oct 16, 2010 at 01:38 AM. Reason: Finished statement
Instructor
Joined: Mar 2008
Posts: 117
Likes: 0
From: Wichita Kansas
Check between the radiator and the condenser for debris build up. Are you loosing coolant? If your coolant level is dropping and you don't see any leaks external, you might have a blown head gasket and the coolant is squirting into a cylinder and burning off. Your Chev dealer could have checked this. They have a tool that can test the coolant to see if there are exhaust gases in the coolant...indicates a blown gasket.
And check your water pump weep hole for signs of leakage. My water pump was going out and I didnt know it. Long story short-overheated too far and I ended up with a blown head gasket.
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