I bet you sucked up something on last nights drive.
C5 Overheating badly
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Joined: Dec 2006
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From: Laurel Maryland
C5 Overheating badly
Well, the car has been running fine up until last night. I was coming back down on 95 and the car began to overheat badly
(First time the car has ever gone over 230 in its life time since I had it). My fans work, all my hoses are warm so I don't think it's an air bubble, and even with cool weather and fans blasting at full, car gets well into the 260 range in no time. I couldn't find any codes either. Any suggestions, or is it time to take it to the dealer?
Thank you.
(First time the car has ever gone over 230 in its life time since I had it). My fans work, all my hoses are warm so I don't think it's an air bubble, and even with cool weather and fans blasting at full, car gets well into the 260 range in no time. I couldn't find any codes either. Any suggestions, or is it time to take it to the dealer?
Thank you.
Team Owner
Joined: Sep 2003
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From: Raleigh / Rolesville NC
Thread Starter
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Joined: Dec 2006
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From: Laurel Maryland
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Tech Contributor
Joined: Dec 2006
Posts: 10,962
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From: Van Buren Arkansas
Wounded Warrior Escort '11
How many miles on the coolant? It does need to be changed although the book says something like 150,000 miles. I believe that number might be Ok if its driven a lot, but if its rare driving, then it probably needs changing. If the coolant is failing, it can cause blockages in the radiator. My first suspicion is as previously mentioned, the thermostat has failed closed.
Le Mans Master
Joined: Sep 2003
Posts: 6,276
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From: Farmington CT
Cruise-In VII Veteran
I have seen a few water pumps fail, but that usually will put you in reduced power mode real quick
I would speculate the passage on inside the plastic end cap is clogged, it's the small out passage that runs to the expansion tank
1. water pump/tstat
2. clogged rad passage
I would speculate the passage on inside the plastic end cap is clogged, it's the small out passage that runs to the expansion tank
1. water pump/tstat
2. clogged rad passage
Race Director
Joined: Oct 2004
Posts: 12,861
Likes: 4,664
Well, the car has been running fine up until last night. I was coming back down on 95 and the car began to overheat badly
(First time the car has ever gone over 230 in its life time since I had it). My fans work, all my hoses are warm so I don't think it's an air bubble, and even with cool weather and fans blasting at full, car gets well into the 260 range in no time. I couldn't find any codes either. Any suggestions, or is it time to take it to the dealer?
Thank you.
(First time the car has ever gone over 230 in its life time since I had it). My fans work, all my hoses are warm so I don't think it's an air bubble, and even with cool weather and fans blasting at full, car gets well into the 260 range in no time. I couldn't find any codes either. Any suggestions, or is it time to take it to the dealer?
Thank you.
Le Mans Master
Joined: Feb 2003
Posts: 6,369
Likes: 73
From: The line waiting to see Santa Claus stretched all the way back to Terre Haute, and I was at the end, Indiana
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18
If it cools down at faster speeds, I'd almost guarantee a blocked radiator. I have had trouble with the same thing, and every time it has been debris on the radiator. You can only see about 2/3 if the radiator from the front of the car, especially if it's lowered. I jack the front up and really stick my head up there. It doesn't take much to run the temp up. Once I found part of a bag (about 8" x 10"), but most of the time it is grass clippings, leaves, little bits of paper, etc. up near the top.
