84 Camaro Overheating
#1
84 Camaro Overheating
Hi everyone,
I have a 1984 Z28 with a 350. I am having an issue with the vehicle overheating at idle. I replaced the radiator and thermostat. The vehicle does have coolant, 50/50 mix, the hoses are not getting hot and the temp gauge is spiking past 260 deg. The vehicle is overheating within 5-10 min during warm up. The fan is working. I am running out of ideas and could use as much help as possible
Thanks
I have a 1984 Z28 with a 350. I am having an issue with the vehicle overheating at idle. I replaced the radiator and thermostat. The vehicle does have coolant, 50/50 mix, the hoses are not getting hot and the temp gauge is spiking past 260 deg. The vehicle is overheating within 5-10 min during warm up. The fan is working. I am running out of ideas and could use as much help as possible
Thanks
#2
Member
Re: 84 Camaro Overheating
if the hoses are not getting hot, there is no coolant flow. the top hose should get hot when the thermostat opens.
remove the thermostat completely and see if you get coolant flow and cool running. if that works you have a bad or incorrectly installed thermostat. the coil should be down on the thermostat.
if you still have no flow after removing the thermostat, you either have a blockage or bad water pump. water pumps usually leak when they fail, but it is possible that the impeller is rusted out or come off the shaft.
remove the thermostat completely and see if you get coolant flow and cool running. if that works you have a bad or incorrectly installed thermostat. the coil should be down on the thermostat.
if you still have no flow after removing the thermostat, you either have a blockage or bad water pump. water pumps usually leak when they fail, but it is possible that the impeller is rusted out or come off the shaft.
The following users liked this post:
T.L. (06-01-2022)
#3
Member
Re: 84 Camaro Overheating
U might also change thermostat to 185* from 195*. The reason for the high temp thermostats is really for emissions. I owned a 1972 Buick GS 350 & the recommended therm was 195 but u would find that just about every owner of the a-body cars were using 185* therms.
I installed a new 195* in my '84 TA & when I check the temp at the thermostat housing it reads 210--212*. If I have to remove the housing I would drop to 185*.
Is your clutch fan engaged at idle?
I installed a new 195* in my '84 TA & when I check the temp at the thermostat housing it reads 210--212*. If I have to remove the housing I would drop to 185*.
Is your clutch fan engaged at idle?
#4
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Car: 1986 IROC Z
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Re: 84 Camaro Overheating
Hi everyone,
I have a 1984 Z28 with a 350. I am having an issue with the vehicle overheating at idle. I replaced the radiator and thermostat. The vehicle does have coolant, 50/50 mix, the hoses are not getting hot and the temp gauge is spiking past 260 deg. The vehicle is overheating within 5-10 min during warm up. The fan is working. I am running out of ideas and could use as much help as possible
Thanks
I have a 1984 Z28 with a 350. I am having an issue with the vehicle overheating at idle. I replaced the radiator and thermostat. The vehicle does have coolant, 50/50 mix, the hoses are not getting hot and the temp gauge is spiking past 260 deg. The vehicle is overheating within 5-10 min during warm up. The fan is working. I am running out of ideas and could use as much help as possible
Thanks
#5
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Car: 89' Firebird
Engine: 3.4L V-6
Transmission: 700-R4
Axle/Gears: Whatever came stock!
Re: 84 Camaro Overheating
1. air dam
2. faulty thermostat 9there was another post where someone got 2 bad ones)
3. air in the system
4. Bad coolant flow
2. faulty thermostat 9there was another post where someone got 2 bad ones)
3. air in the system
4. Bad coolant flow
The following users liked this post:
T.L. (06-02-2022)
#6
Supreme Member
Re: 84 Camaro Overheating
Lots of good advice here. An infrared thermometer is a great tool to have for tracking down overheating issues, the gauge is useful for identifying trends but should not be trusted as a source of truth.
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#8
Member
Re: 84 Camaro Overheating
When u are about to install, drill a small hole in the t-stat which allows for the system to burp after a refill.
#9
Member
Re: 84 Camaro Overheating
if your engine is really running at 260*, soon it will seize & die. There is insufficient in the block to take that temp. Head gaskets s/b failing.
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