2000 cavalier overheating.
#1
2000 cavalier overheating.
I bought a 2000 cavalier to toy with. I paid 200 for it with 200k miles ran really good didn't overheat at all so i got it home no problem and looked into the coolant overflow to find it empty the plastic radiator cap was broken but still sealed well .. so I get dexcool and fill it. I drove it and little to see if it ran better since it had cool and in the overflow but it ran hot!! I drove it about an hour but it was at night and kinda cold maybe 40..when I noticed it running hot I just slowed Down and the temp gauge backed up.. didn't go back to normal but wasn't at red it still has a high temp at idle.. its over 195.. is this normal?? I need suggestions this is a nice car i would like fixed. No it doesn't have milky oil so I don't think its blown gasket
The following users liked this post:
Chris Glazar (December 24th, 2020)
#3
The coolant that drained out I replaced yes. I think its a clog. Not sure if its normal but the bar going across the top of the engine that the upper hose connects to is rusty inside and so is the upper hose I'm sure the radiator is too could the impellers of the water pump be rusty too? I have no pressure in the top hose I can squeeze it closed and not even feel the coolant going through though when I take it off coolant comes out the thermostat is 180 and when I go over hills and stuff because I live in mountain area the temp gauge rises to a quarter before max half is 195 u say that's normal? All cars I been in the temp gauge doesn't move. With it moving I get scared its liable to overheat long distances
#4
The coolant that drained out I replaced yes. I think its a clog. Not sure if its normal but the bar going across the top of the engine that the upper hose connects to is rusty inside and so is the upper hose I'm sure the radiator is too could the impellers of the water pump be rusty too? I have no pressure in the top hose I can squeeze it closed and not even feel the coolant going through though when I take it off coolant comes out the thermostat is 180 and when I go over hills and stuff because I live in mountain area the temp gauge rises to a quarter before max half is 195 u say that's normal? All cars I been in the temp gauge doesn't move. With it moving I get scared its liable to overheat long distances
#5
This is what i went through with mine while trying to fix it. It was a "restricted" heater core. Try searching for " 2002 still getting hot after changing everything" from Oct 2011. It may help you out.
#6
Thanks for the info. I'll search for it and read it. Since posting the last post I pulled the radiator and water pump. I stuck my hose inside the radiator and everything flowed fine and nothing came out but clear water water pump is good. Stuck the hose inside the bar the upper hose connects to and it flows fine so no blockage that I know of. Haven't checked heater because it blows hot as hell but I'll still look at the thread and if anyone else has suggestions I'm open
#7
Thanks for the info. I'll search for it and read it. Since posting the last post I pulled the radiator and water pump. I stuck my hose inside the radiator and everything flowed fine and nothing came out but clear water water pump is good. Stuck the hose inside the bar the upper hose connects to and it flows fine so no blockage that I know of. Haven't checked heater because it blows hot as hell but I'll still look at the thread and if anyone else has suggestions I'm open
Trending Topics
#8
Mine would over heat at idle unless i kept the rpms up around 2500. Also driving around at high rpms kept it cool. It drove me crazy. As i found out, it was not getting enough "FLOW" through the heater core to open the thermostat all the way. Yes, it blew hot air as normal out the ducts. Have you by passed the heater core yet to test it?
#9
Mine would over heat at idle unless i kept the rpms up around 2500. Also driving around at high rpms kept it cool. It drove me crazy. As i found out, it was not getting enough "FLOW" through the heater core to open the thermostat all the way. Yes, it blew hot air as normal out the ducts. Have you by passed the heater core yet to test it?
Thread
Thread Starter
Forum
Replies
Last Post
2000, 2002, broken, cavalair, cavalier, chevy, doesnt, guage, idle, overheated, overheating, problems, register, temperature, thermostat