i'm trying the check valve - Saab 9000 Bulletin Board - Saabnet.com
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i'm trying the check valve
Posted by Graham (more from Graham) on Mon, 4 Mar 2002 15:31:19
In Reply to: Re: They gave good advice/ & my pump experience, Steve Smith, Mon, 4 Mar 2002 01:22:16
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I have ordered a new check valve for the supply line. These seem to have been troublesome, and I think it's possible that if the existing check valve is screwed up a) it's not keeping pressure in the line, which would make for hard starting and b) if something is broken in it, it could be partially blocking the line. I'll also pull the pump while I'm at it and see if the supply screen is clear. and i'm getting some new grommets for the valve cover and intake manifold, 'cause I think I'm getting at least a little vacuum leak.
And it could indeed be a bad (new) Walbro insert, but occasionally the car does run perfectly, which seems to suggest that the pump is working. I'll post my results back here ... but if this doesn't work, I give up ... I've spent probably eight hours of driveway time trying to diagnose this problem.
thanks for all the advice.
posted by 66.140.19...
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