Weak Heater
02-06-2019, 06:53 PM
#1
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Weak Heater
I have been having trouble with my heater. When set to the hottest position its hardly warm. The coolant is clean, the heater hoses are hot, I did a heater core flush when I did a cooling system overhaul, the blend door cable/linkage isn't broken.
The water pump, radiator, t-stat, hoses, radiator cap are all maybe 7 months old. Any help would be greatly appreciated. Thank you.
The water pump, radiator, t-stat, hoses, radiator cap are all maybe 7 months old. Any help would be greatly appreciated. Thank you.
02-06-2019, 08:35 PM
#3
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Join Date: Jun 2016
Location: Santa Clarita California
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Year: 2001
Model: Cherokee (XJ)
Engine: 4.0L
Did you back flush the heater core ? you need to flush the heater core both ways and when you get done , do it all over again .
02-07-2019, 05:01 PM
#4
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What if my heater hoses are connected backwards?
I did back flush the core and clean water is coming thru.
I did back flush the core and clean water is coming thru.
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