I got the car at 128K miles, it passed the 200K milepost this week, so I know the brushes have at least 72K on them. The repair records show no alternator work done by PO's dealer. Also, the voltmeter test across the battery with car not running and then running showed low charging voltage.

I have the new brush+regulator part. Looking at the alternator, it appears that the cover over the rear must be removed, and that there is not sufficient access to do that without pulling the P/S pump and maybe the alternator, too.

I have not worked on the engine front, nor any serpentine belt, either. (Had my indie shop do the recent replacement of both belts, all tensioners and idlers, and water pump).

How do you loosen the serpentine belt tensioner?

Once loosened, must the belt be removed from the car?

The brush+regluator appears to require soldering in the leads as there are no lug connections. Is that correct?

Unfortunate computer problems prevent me from searching the FAQ's or other BB sources for answers to these Q's, so I appreciate your indulgence.

I am hoping that low brushes are creating a low charging voltage situation which allows the A/C clutch to have a weaker magnetic clutch which is why the unit kicks out after running wonderfully cold for a good while. (96F today for wife's 24-mile afternoon commute.)

Other A/C things are OK. Both pressure switches are new, the refrigerant charge is correct, the control panel has no failure code in its computer, so the tech guys say "might be weak clutch, same labor as new compressor which you probably need anyway, so do that (mega-$$$).

Your tips and ideas and encouragement will be most welcome.

Many thanks,

Bob (near Houston, TX)

:>)