FYI :update on 92 9000 stalling and TCS light - Saab 9000 Bulletin Board - Saabnet.com
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Hi all, and especially Anders and vacuum line diagrams, for helping me diagnose my stalling problem. I actually had two problems, unrelated. First was, low boost. I was able to pull air through the vacuum line that opens the Turbo BPV, indicating it was blown. Also, the CONTROL VALVE SOLENOID that operates this vacuum line was dead, so after replacing them both, Boost Returned. Second problem was found when after replacing all vacuum lines in and around new TCS safety valve (on false firewall), it was discovered that the check valve between intake manifold and safety valve was leaking back. I temporarily replaced it with the one that connects to PCV valve, and all is well. My checkvalve is black and white, others have reported red, anyway, mine was shot. Previous post said 35 dollars dealer only part, but WAY worth it. 92 9Kturbo 5 speed, 178K.
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