960 AC blower fan cutting off on acceleration- revisited

Well, I finally got to fixing the HVAC problem I inherited when I bought the
960 earlier this year. The AC/heater blower would quit blowing out the dash
vents on acceleration. Thanks to the tip by MikeF, I found a double-acting
floor/dash vacuum servo unit that was leaking. On acceleration, the reduced
vacuum and vacuum leak would allow the dash vent flap to close, directing
the air to the floor or defroster but away from the dash vents. Annoying to
say the least.

Found a really good procedure outlined on the Brickboard with some nice tips
although if anyone else does this, I have some other suggestions to make
life easier. This is one of the more miserable repairs I have done to the
960- just plain no fun and requires disemboweling much of the under dash
area. I'm sorry now that I didn't first just block off the vacuum line to
the bad servo side just to see how bad the effect would be. This can be done
in a short period of time by removing the glove box insert to gain access to
the HVAC vacuum distribution control unit.

To add insult to injury, I replace a number of burned out bulbs for switches
and accessories. Some of the bulbs have special plastic bases and seemed to
be available only through Volvo at $10.50 a pop. I didn't try other sources
since I wanted to get in and out of there quickly.

Anyhow, I lost a little enthusiasm for an otherwise nice car due to the
vacuum servo and bulbs. End of rant. Thanks for listening.

ChuckB
95 965