coolant temp question
Thread Starter
Burning Brakes
Joined: Jul 2004
Posts: 932
Likes: 0
From: Las Cruces New Mexico
coolant temp question
I noticed today that once I got off the highway and onto surface streets the temp gauge ran all the way up to 240. This is the first time I have seen this. I live in New Mexico and it was only 98 today so not that bad and the car sat all day.
Do I need to take it to the radiator shop for a professional flush and possible cleaning or does someone have other ideas?
Thank you for your comments.
Allen
Do I need to take it to the radiator shop for a professional flush and possible cleaning or does someone have other ideas?
Thank you for your comments.
Allen
Team Owner
Joined: Dec 2003
Posts: 57,408
Likes: 164
From: queensbury ny
coolant
well,like everybody else on here is suggesting to some other folks w/temp issues...check to see if there's any debris stuck to your radiator or blocking the passage.these cars suck up stuff like one of my old girlfreinds!!! 
if not that,ck.your fluid levels,including your oil level.ck.you t-stat,too.although how one does that,i have no clue!good luck
if not that,ck.your fluid levels,including your oil level.ck.you t-stat,too.although how one does that,i have no clue!good luck
Thread Starter
Burning Brakes
Joined: Jul 2004
Posts: 932
Likes: 0
From: Las Cruces New Mexico
Sounds like a nice girlfriend but I only find dead bugs in there, the oil pressure and level are great, and the coolant is at the "full when cold" line (checked when 2.5 hours after driving). I checked the coolant level Sunday after sitting in the garage all day knowing it was going to be a rather warm week and wanted to make sure I was set. I'm with you on the thermostat, I have no idea how to check that, I do know it is not been changed to a 180 degree thermostat.
Any other ideas? I will also look at some of the other posts since I signed back on and see several other cooling issues.
but I only find dead bugs in there, the oil pressure and level are great, and the coolant is at the "full when cold" line (checked when 2.5 hours after driving). I checked the coolant level Sunday after sitting in the garage all day knowing it was going to be a rather warm week and wanted to make sure I was set. I'm with you on the thermostat, I have no idea how to check that, I do know it is not been changed to a 180 degree thermostat.Any other ideas? I will also look at some of the other posts since I signed back on and see several other cooling issues.
Team Owner
Joined: Dec 2003
Posts: 57,408
Likes: 164
From: queensbury ny
temps
i gotta tell you,i have the stock t-stat,and a big mouth air dam and my temp was at 194ish while cruising in 90 degree heat.last night it actually touched 187 for a while!your's could be water pump issues,something blocked somewhere,too.i read on another forum about a guy who had coolant issues,he cleaned out the tip on the radiator somewhere that drains the coolant(??),down on the bottom somewhere??the dexcool he was using clogged it up a little.p.s.i don't think 240 is to far out of chevy's "normal"range!!
Last edited by not08crmanymore; Jun 8, 2005 at 11:01 PM.
Thread Starter
Burning Brakes
Joined: Jul 2004
Posts: 932
Likes: 0
From: Las Cruces New Mexico
Ok. Thank you very much. I went out and took the top shroud off and ran water over it. Again I only found a few pine needles and bug guts. I will see how it does tomorrow and then when I get back Saturday I may drain it at the plug to see if anything is clogged. Thank you for your help. 
Safety Car
Joined: Jun 2003
Posts: 4,640
Likes: 0
From: Sunshine State
Originally Posted by rcknusa
I noticed today that once I got off the highway and onto surface streets the temp gauge ran all the way up to 240. This is the first time I have seen this. I live in New Mexico and it was only 98 today so not that bad and the car sat all day.
Do I need to take it to the radiator shop for a professional flush and possible cleaning or does someone have other ideas?
Thank you for your comments.
Allen
Do I need to take it to the radiator shop for a professional flush and possible cleaning or does someone have other ideas?
Thank you for your comments.
Allen
To check the thermostat you have to pull it and place in a pan of water. Bring to boil and note at what temp it opens. My money says it's bad and needs to be replaced.
Last edited by Korreck; Jun 9, 2005 at 08:03 AM.
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Drifting
Joined: Nov 2003
Posts: 1,894
Likes: 6
From: Sahuarita AZ
Allen, I have an extra stock Thermostat that you are welcome to use if you find yours is bad. The stupid thermostats have to be purchased as a complete unit (tstat and housing) and run $50ish. If you choose to purchase one, I'd go with a 175 and not the stock one. I put a 160 in when I did the cam.
Let me know if you need it.
Matt
Let me know if you need it.
Matt
Thread Starter
Burning Brakes
Joined: Jul 2004
Posts: 932
Likes: 0
From: Las Cruces New Mexico
Thanks Matt, I will talk to you more off line.
Everyone else thank you for your help. I seem to be running fine at highway speeds (200-220) it is in town traffic that I noticed the rise in temp.
Everyone else thank you for your help. I seem to be running fine at highway speeds (200-220) it is in town traffic that I noticed the rise in temp.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
It was around 100 today on the climate control unit (mid 90's actual temp), AC on high--in stop and go traffic mine never got over 196*. Search for my posts in some other overheating threads and you'll find pics I took yesterday of my radiator. Before cleaning it I was running 220*+ with the AC OFF on the highway, ~90 outside.