Date: Sun, 30 Mar 2003 13:35:10 -0700
From: "Hogan Whittall" <>
Subject: Re: Hard(er) question (Was: Odd knob, no markings...what is it?)

"Grunff" <> wrote in message news:b67i2d$2bh2d$ > Hogan Whittall wrote: > > > While we're on transaxles, will synthetic oil do anything to cure the lazy > > syncros on 1-2 shifts? How about adjusting the clutch, going into 1st or > > reverse often results in a *thud*, typically to get into 1st at a stop I'll > > touch on 2nd gear and then move into 1st. Acts like the clutch isn't fully > > disengaging. > > You can't adjust the clutch, it either works or it doesn't. If > it doesn't, then it's probably air in the system, or possibly a > failing master or slave. Alternatively it could be a worn > linkage. When you put your foot on the pedal, do you feel > resistance right from the top? An inch from the top? Two inches? > There's about 1/8" play in the linkage and then 3/4" (including the 1/8" play) before there's resistance. The clutch also engages about 3" off the floor, maybe a little less. There's enough movement to allow controlled engagement, not like it's off at one point and then full on. The clutch drives fine, no slippage. > > Another mystery...erratic boost. My gut tells me the APC solenoid for the > > wastegate isn't doing its thing right. Often times I'll only get 1/3 into > > the orange, sometimes it'll go right up to the red, other times it'll head > > to the red and then drop back down to 1/3rd. The weirdest only happened one > > trip, but at part throttle and marginal boost the gauge would waver from > > boost to no boost and back again. It's not the gauge, I can feel the car's > > speed change at the same time and I haven't changed how much throttle I'm > > giving it. I've checked the electrical connections, everything is clean. > > Maybe it's coincidence, but if I pull over, unplug the solenoid and then > > plug it back in that seems to fix it, if only temporarily. Sometimes when I > > plug it back in the solenoid will click about 20 times and then stop. My > > vacuum lines and intake hoses are tight with no cracks, this is something > > somewhere messing with the wastegate. The other weird thing is when I do > > get decent boost it's not always the same amount. When I'm lucky the needle > > will sit right on the line where red and orange meet, other times it'll be > > down a couple of needle widths. Only thing I can think of is with 146k > > miles, the solenoid isn't holding shut under boost as well as it used to and > > pressure is leaking past, opening the wastegate and killing my boost. > > Possible? Heard of this happen before? > > Does sound like it could be the APC. Maybe borrow one and do a > swap-test? > If I had one to swap out I'd give it a shot, but I live out in northern Arizona and there aren't very many of us Saab guys here. :) I suppose it could be the APC, but I figured it would be one of those things that either worked or didn't, nothing in between. Getting closer...! =) -- Hogan W.

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