Date: Wed, 16 Aug 2000 04:42:32 GMT From: hohnopsamlid.invalid (Goran Larsson) Subject: Re: Aero Boost
In article <8ncojh$3tme$1nopsamsvr05-en0.news.prodigy.com>, Jeff Augenstein <jeffaugensteinnopsamigy.net> wrote: > About 6,000 miles ago I experienced a problem with no boost. At the local > Saab dealer they diagnosed the problem as a faulty "boost control solenoid" > and replaced it at a cost of $220 for parts. The part description was > "solenoid valve". Does this sound like they replaced the APC? The solenoid valve is the small plastic thing with three tubes connected down by the turbo and an electrical connector. It is a valve that can connect one tube (connected to the waste gate) to one of the other two (high pressore and low pressure side of turbo). The valve is pulse width modulated by the APC and this is how the APC controls how much the waste gate opens. On the '86 9000 Turbo the APC is a box with analog electronics in it, mounted inside the instrument panel (above the drivers left knee). For later models it moved down to under the drivers seat and later it was integrated with the direct ignition. Current cars have it as some software inside the Trionic engine computer. > If so, do > you know if that is the going price for an APC? Again, assuming it is the > APC, what would cause it to fail so quickly? Failure of the solenoid valve is common but I don't know why. Perhaps the environment at its mounting position is not very healthy for it? -- Göran Larsson Senior Systems Analyst hoh AT approve DOT se
 |
 |
 |
 |
 |
