On thursday I gave thanks for the existence of 30 watt pencil-tip soldering guns. I decided to tackle the loathsome ACC units in both my 123 and 124. Pulled the PBU from both and proceeded to do the touch-and-go on each circuit board. When it was over, the 123 performed flawlessly, while my 124 returned to its usual routine of
Excellent! I've had (eventual) good luck in getting the VDO ACC's to work again. I'm really quite fond of them. Once they work.
obstinately refusing to send vacuum to the footwell pod. The 123 had obvious signs of cold solder joints, but the 124 unit had a sticker claiming it was "rebuilt", so I couldn't find too many outward signs of problems on the circuit board. I touched up a few joints just to say I did, plugging it in and crossing my fingers--nothing to be thankful for.
Sometimes I've needed more than one 'treatment', and a good contact cleaning of the switches is part of it.
Does anyone know if the 7 port vacuum manifold is the same between diesels and gassers, or between and amongst all the years of the 124 (and 201 or later 126) series? Anyone got a spare lying around? If I
I'm sure that any of the things that can be made to fit physically will function well. I'd think they'd tend to be the same part, but of course I have no proof.
can't easily fix this on the cheap, I might just wire in a spare overboost solenoid or other electro-mechanical vacuum solenoid to send vacuum to that infernal footwell pod in all circumstances except full defrost.
You _are_ sure that the pod works, and doesn't have a microscopic leak? The footwell pod gets a vacuum restrictor in its line, so it is the most sensitive to the beginnings of a diaphragm tear. I can't remember if you've proven the system out already. (No leaks, voltage as req'd to the vacuum valve.) -- Jim
