Heater valve actuator

[moab_b2]

Hello. I have a problem with my heater. When turned on the rear heat works great and the front doesnt, so I know that I need to flush the system.

But the biggest problem is that someone replaced a hose sometime ago (ive only had the 94 fzj80 for 10 months or so). I noticed that the hose clamp that was installed with the new hose blocked the arm actuator that moves the value open or closed. Well I moved the hose clamp to allow freedom of movement, and now the actuator wont move when moving the temp on the HVAC. I manually moved the valve to allow heat and thats how I found out that the front needed a good flush. I need to know how hard and how much it is to fix the actuator that moves the valve. Any writeups or howto's on this?

I did search but only found the solution of flushing the system. Any help would be great. Thanks in advance.

Jason

P.S. its been snowing and in the teens tonight and 20s in the day..... We are cold.

 

[RavenTai]

might help if you tell us what you are driving. is it a Ford Bronco II?

assuming you drive the same thing I do on a 96LX the actuator that moves the hot/cold air baffle in the dash also operates the cable to the heater valve,

first thing I would do is get access to that valve and make usre it is moving, being restrained by the clamp it may have burned up or just maybe the cable came off, wont knwo until you look at the actuator, it is in the center of the dash behind the contols, you will need the FSM to get to it and test it.


Edit oops sorry,

"(ive only had the 94 fzj80 for 10 months or so)"

 

[moab_b2]

The valve will move, like I said, I moved it so heat would atleast goto the rear heater. The cable was taut and wont not move when I tried to test it. If the actuator is toast how hard is it to change out? I would guess that it has to be changed in the inside of the dash, but other then taking off the dash to change out a radio I havent messed with the HVAC.

 

[RavenTai]

sorry valve was suppose to be actuator: gain access and see if the actuator is moving,


it is forward of the AC controls, but I cannot remember if you can see it by just removing the center dash surround (part around the radio and HVAC) but that is where i would start. the one I fooled with the whole dash was apart,

 

[speedracer]

I have the same issue as well.

On the heater valve (by the firewall) if I move it down the rear heater works. Move up towards the arrow of the valve no heat on the rear heater. No change either way for the front heat.

Cable for the heater valve moves slightly (so my guess is that the front dash is independant and requires that cable to move

I wish toyota would send me the FSM quicker (the 2 australian manual suck) as I have no idea what is involved or where teh actuator/soleniods are .

 

[moab_b2]

The FSM is the only manual that you can use? Chiltons isnt good enough? I have heard that the FSM is hard to get time wise.

 

[speedracer]

I have the Chilton on order from Amazon awaiting as well.

I just bought the LC last month

 

[moab_b2]

I have bought several chilton and haynes, so i will look for one of those and check it out some.

 

[speedracer]

That would be great. There has to be a way to have it manually on heat.