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|Author:||EMEDIO [ Tue Apr 11, 2017 3:42 pm ]|
I have a 2004 blazer ls sometime I get good heat other times it's warm or cold air . Normal operating temp has always been just below 210 degrees now it increases to just over 210 then after a short while it goes back to normal
|Author:||carriedi [ Tue Apr 11, 2017 9:05 pm ]|
first thing to do is check your coolant level. If the coolant gets low in the system you may not get flow through the heater core.
next time the heat is not coming out hot, check the two hoses that go to the heater core. see if one is hot and one is not so hot. You could have a heater core that is starting to plug up.
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