2006 pacifica no heat at vents, tried almost everything, please help
#1
11-14-2021, 01:31 PM
2006 pacifica no heat at vents, tried almost everything, please help
2006 pacifica has no heat, only blows cold air. Air flow is good on all speeds and areas.
new thermostat already
new rad cap as the upper and lower hoses were collapsing
this happened all of a sudden
upper and lower rad hoses are warm and flow is there
no engine overheating and coolant cycles as it should
ac is good
heater core hoses are cool to touch, both of them…… flush? Failed core?
oil cooler failure?
I am at a loss and overthinking now
please help
new thermostat already
new rad cap as the upper and lower hoses were collapsing
this happened all of a sudden
upper and lower rad hoses are warm and flow is there
no engine overheating and coolant cycles as it should
ac is good
heater core hoses are cool to touch, both of them…… flush? Failed core?
oil cooler failure?
I am at a loss and overthinking now
please help
#2
11-15-2021, 11:08 AM
Where does the temp gauge sit when fully warm?
When fully warm, the radiator hoses should be hot, not warm, 190F+. Heater hoses should also be hot. Is the coolant at the proper level; air in the system prevents proper coolant circulation? When was the last time the coolant was flushed and the cooling system inspected?
When fully warm, the radiator hoses should be hot, not warm, 190F+. Heater hoses should also be hot. Is the coolant at the proper level; air in the system prevents proper coolant circulation? When was the last time the coolant was flushed and the cooling system inspected?
#3
11-15-2021, 04:05 PM
Gauge is right in the middle, upper and lower rad hoses are at the 195 when tstat opens. Heater core inlet and outlet are not warm at all.
my next thought is to remove heater core inlet and outlet hoses to make sure there not clogged.....?
my next thought is to remove heater core inlet and outlet hoses to make sure there not clogged.....?
#4
11-15-2021, 04:07 PM
Sorry, coolant levels good, burped system several times from tstat replacement. Coolant system flushed and refilled.....really cant say. It's just odd to me that core hoses have no warmth to them at all
#5
11-16-2021, 03:15 PM
"heater core hoses are cool to touch, both of them…" your issue is there.
Heater core hoses need to be the same temp as the radiator hoses or you will have no heat inside/. so likely a clogged heater core. A flush is preventive measure will not really unclog one that's already to that point.
Heater core hoses need to be the same temp as the radiator hoses or you will have no heat inside/. so likely a clogged heater core. A flush is preventive measure will not really unclog one that's already to that point.
#6
11-16-2021, 06:49 PM
Here is my HVAC inexperience but shouldn't one hose to the core be warm at least? I will check hoses this weekend, if the next step is the core we may be parking it for the winter.....ugh.
#7
12-17-2021, 08:40 PM
06 Pacifica no heat
2006 pacifica has no heat, only blows cold air. Air flow is good on all speeds and areas.
new thermostat already
new rad cap as the upper and lower hoses were collapsing
this happened all of a sudden
ac is good
heater core hoses are cool to touch, both of them…… flush? Failed core?
oil cooler failure?
I am at a loss and overthinking now
please help
new thermostat already
new rad cap as the upper and lower hoses were collapsing
this happened all of a sudden
upper and lower rad hoses are warm and flow is there
no engine overheating and coolant cycles as it shouldac is good
heater core hoses are cool to touch, both of them…… flush? Failed core?
oil cooler failure?
I am at a loss and overthinking now
please help
I replac the face of the climate control face and my heat works again and blow from all vents again. I bought it from eBay for about 50.00 cheap and easy fix. Thank goodness it's cold here
#8
12-17-2021, 09:15 PM
The temp difference will be negatable to the touch. It will feel the same as the upper heater hose. Use your infrared gun and mesture the temps of the heater core hoses they both need to be close to the same temp as the radiator.