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So my daughter calls on her way home from school last night.
"Dad, I have no heat!" It is about 10 degrees out and she's 3.5 hours away.
Over the cell phone, we do the ACC calibration thing but no faults. I think she does have a minor heater core leak, but that's not the issue. She has a full load of coolant and her temp gauge is at 8:30 to 9 o'clock. So she bundles up and drives home, thaws out by the wood stove.
Today I go poke at her ride, a '95 CS. ACC calibration comes up with no faults, but takes about 2 mins or so to complete, not the usual 30 secs or so. Did it 3 times. I pull the aquarium cover, expecting to see the arm for the mixing flap broken or the wire off, but that's OK. Arm won't move manually though, and doesn't move when cycling through the buttons on the ACC. Hmmmm...
I pull the ACC and grope around to find the inside end of the wire to the mixing flap. I can move that manually, and adjust it so I get warm air out for the feet, the dash and defroster. Arm will NOT move by using the buttons on the ACC. Back in the aquarium the arm has moved. She now has heat in the car. The ACC lets me adjust the temp up and down and control the fan speed, but the flaps don't move.
So riddle me this all you ACC veterans: Since the ACC calibrates with zero faults, is there a fault in the ACC itself, or is it a servo for the mixing flaps? I suppose it's possible that the ACC has gone south, but why it doesn't show faults is a bit of a mystery. To test further, I could swap the ACC out of my '96 and see if that makes a difference. However, I'm a little reluctant to do a swap in case there's a short circuit someplace that has damaged her ACC, and I don't want mine to die, too. (Paranoia strikes deep on cold days in the winter.)
I do long for the days of manual climate control, when you could usually tell what was going on.
All thoughts and ideas are very welcome. But at least the kid will have heat to get her through the rest of winter. I hope.
, Mon, 18 Feb 2008 09:48:54, Tue, 19 Feb 2008 16:57:29
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