Re: APC box not working?? - Saab 900 Bulletin Board - Saabnet.com
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Re: APC box not working??
Posted by George (more from George) on Tue, 28 Nov 2000 16:38:36
In Reply to: Re: APC box not working??, ed, Tue, 28 Nov 2000 14:39:01
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Two simple tests can be done:
1)Take off the vacum hose that goes to the pressure transducer and overboost switch. Connect a bicycle-pump on it, set the ignition ON and pump pressure in the line, look at the turbo gauge and see the pressure rice. When reaching about the base boost the solenoid valve should start rattling, turn OFF the ignition. Test-Passed.
2)Let the engine run at idle (or Ignition ON), place a rod/pipe extender/big screwdriver at the top of the mounting-bolt on the knocksensor, gently knock on it with a hammel and the solenoid shold start rattling. The knock sensor is OK and APC works.
I did this on mine to sort out Boost problems, in my case the problem was solved by cleaning the solenoid valve.
God luck
George (Norway)
Posts in this Thread:
- APC box not working??, Gary C., Tue, 28 Nov 2000 11:02:23
- I had a bad box, Vas, Wed, 29 Nov 2000 16:11:50
- Re: APC box not working??, ed, Tue, 28 Nov 2000 14:39:01
- Re: APC box not working??, ed, Tue, 28 Nov 2000 14:32:48
- The way to be certain..., IrieTom , Tue, 28 Nov 2000 12:53:43
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