Rear heat
#1
#3
Cruiser:
When you refilled the cooling system after the repair, did you burp the cooling system correctly? If not, you might have air remaining in the system causing issues.
As also mentioned, your aux coolant pump might not be working. This is located on the passenger side fender well and usually the failure mode is to leak as opposed to quitting.
Check and see if the hoses to the rear core located on the underside of the passenger rear quarter panel are both hot.
Don
When you refilled the cooling system after the repair, did you burp the cooling system correctly? If not, you might have air remaining in the system causing issues.
As also mentioned, your aux coolant pump might not be working. This is located on the passenger side fender well and usually the failure mode is to leak as opposed to quitting.
Check and see if the hoses to the rear core located on the underside of the passenger rear quarter panel are both hot.
Don
#4
#5
is this the heat at the very back if you search more you will find people talking about a blend door failure. something about a tab breaking off so it cant move. some people say the pump is not really needed to make it work and it will work just fine with the pump removed from the system.
#6
DESCRIPTION
The pump is controlled by the HVAC controller and
is only operational under the following conditions:
(1) Vehicle speed below 17 m.p.h.
(2) Coolant temperature above 150° but less than 230 ° F.
(3) Any blower speed setting.
(4) Temperature heat setting above the halfway setting (60% heat).
(5) The pump will turn off at speeds above 30 m.p.h.
(6) The pump will turn off if the coolant temperature rises above 230° F.
The pump is controlled by the HVAC controller and
is only operational under the following conditions:
(1) Vehicle speed below 17 m.p.h.
(2) Coolant temperature above 150° but less than 230 ° F.
(3) Any blower speed setting.
(4) Temperature heat setting above the halfway setting (60% heat).
(5) The pump will turn off at speeds above 30 m.p.h.
(6) The pump will turn off if the coolant temperature rises above 230° F.