overheating
Thread Starter
Cruising
Joined: May 2012
Posts: 10
Likes: 0
From: Geneva Illinois
overheating
I have a 2000 convertible and was coming home on the expressway. Outside temp about 40 degrees. Engine is normally about 200 deg. Check gage lite went on and eng temp was 260 deg. Revved engine and temp went to normal. 30 seconds later went all the way up. kept doing the revving and then check engine light went on and car started running rough. pulled over and sat 5 minutes. Started up and ran fine at 200 deg for about 3 miles and then temp went all the way up again. Kept stopping every few minutes and was able to get to a chevy dealer. They just called and said it was water pump. $1100.00. Does that sound right to anyone. I found out later that rough running is what they do to get car home by eliminating every other spark to cool the cylinders.
THANKS
John
THANKS
John
Melting Slicks
Joined: Sep 2006
Posts: 2,721
Likes: 104
From: Florida
buy a pump and do it yourself, its the easiest pump to change i have ever worked on.
1100 is just nuts!!
There was a vendor that sold brand new GM take off pumps for 100-110 bucks shipped.
https://sdparts.com/details/scoggin-...nter/x19256263
that's where i got mine.
1100 is just nuts!!
There was a vendor that sold brand new GM take off pumps for 100-110 bucks shipped.
https://sdparts.com/details/scoggin-...nter/x19256263
that's where i got mine.
Last edited by chris308; Nov 23, 2013 at 01:43 PM.
Le Mans Master
Joined: Jan 2007
Posts: 7,364
Likes: 6
From: Rocky Mount Virginia
I have a 2000 convertible and was coming home on the expressway. Outside temp about 40 degrees. Engine is normally about 200 deg. Check gage lite went on and eng temp was 260 deg. Revved engine and temp went to normal. 30 seconds later went all the way up. kept doing the revving and then check engine light went on and car started running rough. pulled over and sat 5 minutes. Started up and ran fine at 200 deg for about 3 miles and then temp went all the way up again. Kept stopping every few minutes and was able to get to a chevy dealer. They just called and said it was water pump. $1100.00. Does that sound right to anyone. I found out later that rough running is what they do to get car home by eliminating every other spark to cool the cylinders.
THANKS
John
THANKS
John
Advanced
Joined: Dec 2010
Posts: 61
Likes: 0
From: Kingsburg Ca
Waterpump on a C5 is one of the easiest fixes on the car;Did mine with hoses ,therm, and radiator in about 2 1/2 hrs check the Sticky section on how to bleed and burp the air out of the system and you will be good to go ....$1,000.00 is a Royal Screwing..Good Luck
Race Director
Joined: Jan 2008
Posts: 16,027
Likes: 170
From: oregon
do the radiator and hoses while you have it all apart. radiators not only lose cooling efficiency getting crammed with crap, they scale. at 13 years old it's going to go anytime
this is a list of the parts and part numbers in your cooling system
Ac delco 20889 radiator $188.16
Ac delco water pump 251-744 $177.61
Ac delco water pump inlet w/ stat 15-11057 $29.30
Ac delco 18021L hose $27.52
Ac delco 24388L hose $25.35
Ac delco 24458L hose $14.59
GM hose 10229491 $24
Gates 18127 $12.62
Gates 5/8” heater hose {runs small} 2ft section
GM coolant tank 10430189 $69.95
this is a list of the parts and part numbers in your cooling system
Ac delco 20889 radiator $188.16
Ac delco water pump 251-744 $177.61
Ac delco water pump inlet w/ stat 15-11057 $29.30
Ac delco 18021L hose $27.52
Ac delco 24388L hose $25.35
Ac delco 24458L hose $14.59
GM hose 10229491 $24
Gates 18127 $12.62
Gates 5/8” heater hose {runs small} 2ft section
GM coolant tank 10430189 $69.95
Team Owner
Joined: Jul 2006
Posts: 22,141
Likes: 4,156
From: Kannapolis NC
Or you could fix what's wrong. No way is the engine temp going up 60 degrees in 30 seconds. The water pump won't be causing this. It could be bad, but not causing rapid temp pegging like this.
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