The Saab Link Forums - Troubleshooting APC Solenoid.

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Troubleshooting APC Solenoid.

Hi. I am having a no-boost situation with my son's '93 C900 Turbo. I have chased down and checked a lot of things, and I'm stuck at this point. APC Solenoid doesn't seem to be acting correctly-

I have read the APC troubleshooting guide, but something is unclear:

Quote:

7. Next check the APC solenoid by applying +12v to it; under power, the solenoid should snap. Check that it is fully functional by removing the vacuum lines from the "W" and "R" ports, and connecting a length of vacuum line to the "C" port. With no power applied, air passed through the "C" port will come out through the "W" port; with power applied, air passed through "C" will come out through "R".

Mine opens both "W" and "R" with power applied. I assume this means that it's failed?

Can anyone please verify?

im not sure what the native state of that solinoid is, however if it makes noise when you give it power its probably good.

i would start by checking for boost leaks or failed diverter valve. before electronics
Many small leaks can add up to one huge problem in c900's

I myself am looking for an APC solenoid, part number 9342072?

Lee