Weird voltage issues (84 4kq)

[Huw Powell]

That's where I was going - combination of a soft engine mount (lets 
engine move substantially under load) and a bad connection or rubbing 
wire that is only a problem when the engine moves.

The alt ground is via its case to the engine block.

The "exciter" is the small wire you mentioned.

Make sure the battery ground wire is cleanly and securely connected to 
the battery tray and the engine block/transmission bolt.

Have you run a voltmeter in the cabin yet, or are the headlights your 
stand-in?  Could just be a problem in the lighting circuit(s)...

On 3/1/2011 1:00 PM, Andrée-Anne Bourgeois wrote:
> Also, check that passenger side engine mount. If dead, then engine will rock
> a lot under acceleration.
>
> Louis-Alain
>
> -----Message d'origine-----
>
>
> John, in addition to what has been mentioned:
>
> It almost sounds like a wire is rubbing somewhere when you floor it. I'd be
> checking the wiring around the engine. Try moving the wiring around while
> the car is at idle and see if you can duplicate the problem. The full
> throttle thing is what has me leaning toward this conclusion. Oh, and if it
> started occuring when the alt was changed, look at the wires connecting to
> the alt, and in that immediate area.
>
> Tony
>
>
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-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/