Cooling system woes
You all are probably sick of me and my cooling system troubles but I'm just stumped. 4 months ago had a new rad and thermostat installed and the whole system flushed, I just replaced replaced the water pump, therm, lower and upper hoses and thermostat two weeks ago. I drove it for about an hour on a hot day in traffic and it spewed from underneath the cap and the temp gauge jumped to 260. So I flushed it 3 more times and bought a new cap. Just did it again and I'm currently sitting on the side of the road waiting for it to cool. WTF am I missing?
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I would rent/buy a block test kit. It tests your cooling system for exhaust fumes. It's possible you have a bad head gasket, cracked head, or block. Never hurts to spend the $15 to test it before throwing more parts at it.
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Elec fan working? Mech fan clutch good? Good fan shrouds in place? If you have an a/c condensor is it clogged blocking air flow?
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Originally Posted by sthon
(Post 2560516)
I would rent/buy a block test kit. It tests your cooling system for exhaust fumes. It's possible you have a bad head gasket, cracked head, or block. Never hurts to spend the $15 to test it before throwing more parts at it.
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Originally Posted by stephen_migs
(Post 2561432)
I should do that, that's a good idea. I'll try that this weekend. Thanks!
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Originally Posted by EZEARL
(Post 2560593)
Elec fan working? Mech fan clutch good? Good fan shrouds in place? If you have an a/c condensor is it clogged blocking air flow?
The temp gauge jumped from 210 to 260 in about 3 seconds while the "check gauges" light simultaneously came on. I'm wondering if I also have a temp sensor or thermostat problem along with whatever is making it overflow. I'll check the fan clutch. If the ac condenser is clogged, can I flush it or should I just replace it? |
Originally Posted by EZEARL
(Post 2560593)
Elec fan working? Mech fan clutch good? Good fan shrouds in place? If you have an a/c condensor is it clogged blocking air flow?
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Originally Posted by freegdr
(Post 2561443)
Deff check for proper fan function just because you moving don't mean you getting enough air ....
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You probably need a new cylinder head :(
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If it's overheating at low speed, replace your mechanical fan clutch. It's a wear part that's universally neglected.
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agree with the fan cluch: you overheat in slow traffic, the fan then needs to cause the air flow acrossthe radiator.
did you bleed the system from air thoroughly? air trapped can do cause weird overheating gremlins. Then run it on idle and see if air keeps bubbling up in your reservoir bottle. If that keeps bubbling, you are looking at more costly repeair relating to airleak into your cooling, l!ikethe head issues. just to check: your coolant is nice and green and 50/50 mix? |
Pressure check system if heads bad youll know ....
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Originally Posted by Roler
(Post 2561660)
agree with the fan cluch: you overheat in slow traffic, the fan then needs to cause the air flow acrossthe radiator.
did you bleed the system from air thoroughly? air trapped can do cause weird overheating gremlins. Then run it on idle and see if air keeps bubbling up in your reservoir bottle. If that keeps bubbling, you are looking at more costly repeair relating to airleak into your cooling, l!ikethe head issues. just to check: your coolant is nice and green and 50/50 mix? |
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