Base boost only - Saab 900 Bulletin Board - Saabnet.com
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darcey,
When I get my hands on a car that has only base boost I first want to ask: Is there a turbo problem or is the APC system bad? To find out pinch off (I use a big hemostat) or disconnect the pressure hose that goes from the APC solenoid to the wastegate, then drive the car. If the boost gauge needle will hit the red zone you can call the turbo good and move on to troubleshooting the APC system. Of course the APC system protects the engine so don't overdo it, just do the test and un-pinch the hose.
With oil spewing from various locations related to the crankcase it might be a good idea to do a compression check as well. Excessive blow-by under boost will force oil out of those places.
Good luck, let us know what you find.
posted by 198.233....
Posts in this Thread:
- new to me '87 900 Turbo...low boost issues., darcey, Mon, 22 Aug 2011 15:52:50
- Re: new to me '87 900 Turbo...low boost issues., bill schultz , Wed, 24 Aug 2011 09:12:41
- UPDATE! Swapped boxes and more about smoke., darcey, Wed, 24 Aug 2011 07:37:55
- Darcey, before you swap components, check wires, Cmyles , Tue, 23 Aug 2011 10:54:40
- Re: new to me '87 900 Turbo...low boost issues., Hans, Tue, 23 Aug 2011 09:26:24
- base boost issues, tsw, Tue, 23 Aug 2011 08:59:18
- Re: new to me '87 900 Turbo...low boost issues., Simon S, Mon, 22 Aug 2011 16:15:56
- sorry...typo. plowing oil should be losing oil., darcey, Mon, 22 Aug 2011 16:00:51
- Base boost only, Cmyles , Mon, 22 Aug 2011 20:25:26 <-- Viewing This Message
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