heater blows cold at idle
#1
heater blows cold at idle
Hey there, that is pretty much the symptoms, if I go and warm up the car in the morning, it doesn't matter the engine temperature, it can be completely at operating temp and it still blows cold, until I bring up the rpms to about 1500 or just start driving. When I am driving it is fine and blows warm, but when I stop at lights it blows cold again
Let me know what you think
thanks
Let me know what you think
thanks
#3
Guest
Posts: n/a
1) start by verifying that the heater core valve is opening. if it opens then
2) purge any air from the system...
http://forums.maxima.org/showpost.ph...2&postcount=14
3) if that doesn't work you probably have a clogged heater core and a "standard" chemical flush (just pouring stuff into the radiator) probably will not fix it...
http://forums.maxima.org/showpost.ph...6&postcount=44
before you tear out the heater core though, your could try to open the heater core lines and attempt to directly force flush it with a high concentration of the flushing chemicals. it might work, but I think your chances are low.
whatever you do, follow this advice (esp coolant type and purging air) ...
http://forums.maxima.org/showpost.ph...4&postcount=45
2) purge any air from the system...
http://forums.maxima.org/showpost.ph...2&postcount=14
3) if that doesn't work you probably have a clogged heater core and a "standard" chemical flush (just pouring stuff into the radiator) probably will not fix it...
http://forums.maxima.org/showpost.ph...6&postcount=44
before you tear out the heater core though, your could try to open the heater core lines and attempt to directly force flush it with a high concentration of the flushing chemicals. it might work, but I think your chances are low.
whatever you do, follow this advice (esp coolant type and purging air) ...
http://forums.maxima.org/showpost.ph...4&postcount=45
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