No rear heat

[Ranrax]

Okay guys, I have warm air blowing out the front, but only cool air in the back. I have good hot hoses running into and out of heater core, but I am blowing cool air. Since both heater hoses are hot, I am ASSUMING the core is clear, but what would keep me fomr getting the warm air to blow? When I switch from cold to heat, there is a definite differenve, so I am guessing the blend door is working. Any ideas what to check before I just dive in and start checking things??

Thanks for any help!!

 

[bedrck46]

Would be nice to know what year your expy is as there are some differences in the 1st gen systems

 

[bedrck46]

The blend door is electrically operated but there are other doors that are vacuum operated I would check the vacuum lines to see if anything has become disconnected or for vacuum leaks. You say both heater hoses are hot are they the ones for the front or rear or both front and rear.

 

[bedrck46]

check the following fuses with a meter not your eyes
Battery Junction under hood 13,23,105,114
Central Junction Box under dash 5,7,23,24

 

[Ranrax]

It is an '01

 

[Ranrax]

Both front and rear hose sets are hot, which makes me think both cores are clear and allowing water to flow them.

Thanks,

 

[Ranrax]

check the following fuses with a meter not your eyes
Battery Junction under hood 13,23,105,114
Central Junction Box under dash 5,7,23,24

Thanks, I will checj them all.

 

[Ranrax]

check the following fuses with a meter not your eyes
Battery Junction under hood 13,23,105,114
Central Junction Box under dash 5,7,23,24

I checked all of these fuses and they are all good. I did use a meter, just in case. Any other ideas you can think of?

Thanks,

 

[bedrck46]

is the blower fan running do you have all the controls set for heat