hello good people..!!

i have a 98 vette, and it is running hot. its not over heating but i'm on the hwy doing 85 the temp goes to 230. i trun on the heat it goes down to 219. i have a new water pump, thermostat, and coolent temp sen...... wth is going on...?????????

 

multiple possibilities....crap up there blocking the air flow (plastic bag)....normal dirt clogging the radiator fins...use air compressor to blow it out or hose it out real good....fan quit working or not working properly...

first thing get under there and take a look

 

Was it running hot before that? If so, no comment.

If not, 99% probability that you have air in the coolant system.
Search for coolant bleeding.
The other possibility is that you got a faulty thermostat. Throw it into a pot of water with a thermometer and slowly bring it up to 190 degrees. See where that sucker opens up.

 

true if he just did the stuff he mentioned he needs to bleed the air out at the heads

 

well the radiator is 4 months old. water pump 2 months old. was running fine. then on a long trip. the temp jump up. so i got a new thermostat. same thing again. found the temp sen was damage replaced yesterday, and now still hot..?? i will pull out all the stuff in the am and see if its dirty or something

 

where is the bleeder..?

 

Do a search, you will find the answer,,,,,,,,,,,,,,,,,,,,,

Help yourself first, so that we may help you.,,,,,,,,,you have the car, don't expect us to help every little turn if you are not going to get down and dirty.

Don't mean to be crude, but some people will spend an hour's on the forum posting and waiting for answer's, instead of taking ten minutes to search and/or go OUT to the car and check it.............

 

ok buddy??? thank you. i'm the one doing the work. i just asked if somebody had any more answers thats all. omg.. ?:confu sed2:

 

Where? In C4 tech?

 

Try this! Talk about a coincidence. Mine was getting hot and would fluctuate back and forth from around 210 to 238. My car would normally run about 195 degrees and max at 220 degrees in stop and go traffic. I followed the directions below and low and behold it is working as before! I have posted the link to the thread that has the needed directions on getting rid of the excess air. Refer to post #9.

http://forums.corvetteforum.com/c5-t...-radiator.html

Good luck and don't forget to post your findings.

 

Wouldn't it have been more helpful to tell him rather than give your response? By that same token, have you ever heard that if you can't say something nice, then probably better to not say anything at all?

 

Wow.talk about an ***.guess they better shut down the forum

 

thank you very much...!! about to try it out now

 

 

ok folks....

 

To the OP, take a close look at the air-dam under the car and insure its working properly and not damaged in some way. Mine got trashed somehow and was bent/jammed so it wasn't providing the airflow correctly up under and into the radiator, therefore it was doing the same, heating up when getting up there in speed. I replaced it completely and now all is well again. To add, just shortly before this started happening, I could smell coolant when I shut it down. I found a hairline crack on the radiator, so that got replaced. Following that, is when I noticed the speed/temp problems. I too replaced the thermostat, bled the air via the crossover tube and so on, but it didn't help either and there was only a tiny amount of air in there anyway.

 

thanks..! mine is beat up

 

To all, It wasn't meant to be crude or rude to anyone, but simple searches about overheating would have brought up a ton of posts. Including the suggestions, check the air dam, did you recently replace the coolant, ETC...............

After being on the forum for a while, I have noticed that most members don't read the stickies or read through the forum, a lot of members join up after they have a problem and some older members, on having a problem get back on the forum and post "HELP". I joined the forum to LEARN about my car as I do with all my cars. That way a dealer or repair shop can't quote me a replacement for the starter when it's only a fuse blown. I give advise and take advise. If there is a problem with my car, I check the usual things associated with the problem first, then I check the forum, last , if I can't find a solution I post the problem and hope others can help.

My, "help yourself first, so that others may help you" is not meant to be sarcastic, it is simple, find out everything about your problem and have all the facts, then post, that way members can see all you have tried and give helpful answer's, with out stabbing away in the dark.
I read the forum to discover new things about my car and learn about possible problems and how to correct them or which direction to go into before the problem comes up, that's being prepared.

To see "oil pressure gauge PEGGED", "help oil pressure", "WTF my oil gauge broke?" in the same page, shows that people are not reading the forum and will spend hours posting instead of a 2 minute search and finding a possible answer..........

 

Just heads up you are not overheating you are in the correct range..
The low speed cooling fan is commanded on when the coolant temperature reaches 108°C (226°F). It is turned off if the coolant temperature lowers to 104°C (219°F). The high speed cooling fan is commanded on when the coolant temperature reaches 113°C (235°F). It is turned off if the coolant temperature lowers to 108°C (226°F). When the A/C is on and the coolant temperature reaches 85°C (185°F), the low speed cooling fan will be turned on at vehicle speeds less than 56 kPh (35 mph).

This is right from the tech manual.


As others have said check for debris. if yoo still want lower temps you will need a stat and a tune. if you still feel you have air in the system try this link below.This is a better way to bleed the system from the head itself post 4 and 12 is where you wanna read and there are some pics in the second page.

http://forums.corvetteforum.com/c5-t...erheating.html

 

Is there any real benefit with switching to a 160°F thermostat? I've seen opinions that go both ways, and if I can run cooler with one I'm all for it. I have a T-body bypass kit on its way to me right now, and if a lower temp thermo will help I'd prefer to install everything at the same time.