Rather than clogging up the other thread, I thought I'd start a new one regarding the center vent flap not working problem. (Of course, as I was in the middle of typing someone comes in who has to use my computer -- 2 hours later.... I find another computer to use and have to type from the beginning! )
Anyway, I worked on the vent issue yesterday and discovered something in the process, so I'll get that out of the way first. The diagram in the Bentley for the vacuum lines attached to the vacuum distributor is slightly wrong. Bentley has the center line on side of the distributor going to the vacuum reservoir, when in fact the center line goes to the servo (I even reversed the lines to make sure):
Second, all vacuum lines are good (in mine at least) -- no leaks.
Okay, on to the problem. Running the A/C with the fan speed on 2 or 3 and dash-only selected, pushing the center vent flap in it stays open. Selecting dash-and-floor engages the servo (had my hand on it to make sure) and air comes out the floor vents and center vent (side vents in this whole story are irrelevant). Servo in question:
After sliding the selector over to defrost, the center vent flap slammed shut immediately. Began the process again and then shut the car off. The center vent moves back and forth (distance of about 1/4") for about 10-15 seconds then appears to close. I say "appears" because it does drop but not all the way because 15 seconds later the flap slams all the way shut. According to Bentley, if the servo retracts before 1 minute has passed, one of four things is faulty: vacuum leak, faulty distributor and 2 other things I can't remember.
So, unless Nrcabby can explain where that $5 vaccum part is on the heater core (couldn't find anything in ETKA), I shall be purchasing and installing a vacuum distributor to see if that solves the problem (the dealer was right afterall?! and was gonna charge me $250?!). If not, I'll just be propping the stupid flap open -- I mean really, why have a vacuum-operated flap when the vent has a built-in flap itself?!
And for those wanting/needing to remove the center vent, here's a clear view of where the clip is:
Modified by kamzcab86 at 10:57 AM 7-19-2004