Heat running hot and cold
#1
Heat running hot and cold
I have a 2003 Blazer and my heat is temperamental. It blows hotter than blazes for a bit then turns warm. It's never overheated since I have owned it. No leaks, but I get airflow from the front vents no matter what position I have it on.
I plan on replacing the thermostat as a first step.
Any ideas what else it could be?
I'm in Minnesota and winter isn't too far off.
I plan on replacing the thermostat as a first step.
Any ideas what else it could be?
I'm in Minnesota and winter isn't too far off.
#3
Thank you!
Thank you Joe! Another avenue to check out! And no, I don't really hear a hissing, I will have my son listen (I have hearing loss). Would it be in the cabin or engine?
Last edited by ChevyChrissy76; 09-11-2017 at 12:18 PM.
#4
have a full read of my thread, it's pretty detailed..just lacks pictures....
someone might correct me who knows more but have a read...
https://blazerforum.com/forum/2nd-ge...hissing-95272/
also yes ---- make sure you try a new thermostat - that did it for me once !!
that is all it needed when mine would have work!!!!
someone might correct me who knows more but have a read...
https://blazerforum.com/forum/2nd-ge...hissing-95272/
also yes ---- make sure you try a new thermostat - that did it for me once !!
that is all it needed when mine would have work!!!!
#5
have a full read of my thread, it's pretty detailed..just lacks pictures....
someone might correct me who knows more but have a read...
https://blazerforum.com/forum/2nd-ge...hissing-95272/
also yes ---- make sure you try a new thermostat - that did it for me once !!
that is all it needed when mine would have work!!!!
someone might correct me who knows more but have a read...
https://blazerforum.com/forum/2nd-ge...hissing-95272/
also yes ---- make sure you try a new thermostat - that did it for me once !!
that is all it needed when mine would have work!!!!
#6
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