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Old 10-12-2019, 06:02 PM #1
The Cold War Kid The Cold War Kid is offline
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Heater door actuator help please?

Tore into it today. It was cold all day - got into it late in the afternoon.

My noise is coming from the right heater door actuator. There are two - one on each side of the driveshaft hump.

I almost got it off. The "pipe" that brings heater air to the right floorboard is in the way of the third and final screw holding the actuator. I think I can flip that gear over and just fix it like I saw in a post on here... I hope.

Anyway - how can I get that damn pipe off? I tried pulling the computer so I could see behind it but the torx bolts are in a weird angle and I can't get into them...
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Old 10-13-2019, 03:58 PM #2
The Cold War Kid The Cold War Kid is offline
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OK - I'll answer my own question.

Thanks to a video on youtube (https://www.youtube.com/watch?v=yRRcLVNqgC8) I learned there is a chunk of wiring over the final (3rd) screw.

I used gorilla super glue on the worm gear. I roughed the shaft of the motor up good, first. Be careful - that stuff sets up FAST and you need to align the worm with the keys that make it turn (they protrude from the motor shaft).

When I took the thing apart most of the mickey-mouse plastic thingys that hold the two halves of the cast together broke - old, and brittle. A single tie-wrap (cable tie) fixed that.

Put it back together - motor does not run. Turns out the case interferes with the outside motor contacts. Bent that, worked fine.

Test the thing before you install it. Just let it hang on the wires. Start it up and watch as you move the temp knob. Make sure it works...

Finally, after I installed it, it would not work. Had a hunch. Disconnected the water valve cable (on the firewall, dead center). Then it worked. Sprayed copious amounts of blaster on both ends of cable. Helped it with vicegrips under the hood. Now the thing works.
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