How crazy is this,.. years ago I removed and over road the over boost sensor, but left the over boost switch alone, and the car has been boosting excellent so good it was jaw dropping. However just with-in the last few months I heard a distinct hissing coming from under the dash while trying to put the car into boost. Located the hiss to the over boost switch. The vacuum lines are 100% its the switch itself that is now leaking on every boost, every time the car would try to boost past 4psi the switch would bleed off all the boost (it was a very loud hiss)
So pulled the vacuum lines and hard wired the line from the motor to the boost tac. Everything works again. Question is why did the switch take so long to start bleeding off boost. The car in question was boosting 15psi+ and the switch had never opened before, not once. then all of a sudden... what is it blown out?
Being that I probably just leave the switch bypassed for now on, whats up with the 3 wires running to the switch what purpose do they serve?
posted by 67.77.8...
Posts in this Thread:
Members can receive an alert when someone posts in this thread.
- Over boost switch, vvack0matic, Sat, 28 Apr 2012 19:39:15
- Re: Over boost switch, CBS , Sun, 29 Apr 2012 08:29:37
- Re: Over boost switch, IrieTom , Sun, 29 Apr 2012 07:30:52
- 2 wires, not 3, Siegfried, Sun, 29 Apr 2012 02:46:22
Post a Followup
The content on this site may not be republished without permission. Copyright © 1988-2012 - The Saab Network - saabnet.com.
This is a moderated bulletin board - Posting is a privilege, not a right.
Unsolicited commercial postings are not allowed (no Spam). Please, no For Sale or Wanted postings, SERIOUSLY.
Classifieds are to be listed in The Saab Network Classifieds pages.
This is a problem solving forum for over 250,000 Saab owners, so expect to see
problems discussed here even though our cars are generally very reliable. This is not an anything goes
type of forum. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the
Saabnet.com Mission and Purpose Page. Please remember that you are
not anonymous. Site Donations
Your address is: 184.108.40.206 - Using CCBot/2.0 - Logged.
Site Members do not see red text instructions, green links, and bottom of the page banners.
Click here to see all
the Site Membership Benefits!