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fuel pump relay and frequency valve RE: 5k freq valve
Sometime in the relay it self a couple of the solenoid contact points are
not solid enough (especially in older relay), this will also cause the
frequency valve to operate intermittently. The fix is to put a new relay or
to bend the contact points in the relay to increase the tension on the
From: email@example.com [mailto:firstname.lastname@example.org]
On Behalf Of Arryn Milne
Sent: Wednesday, September 02, 1998 11:22 PM
Subject: RE: 5k freq valve
just wanted to update the list on my problems. Suspected a CIS freq valve
problem because I couldn't hear it buzzing and the car was acting like it
had a vacuum leak. Also had an oily substance in the pressure sensor line
to the ECU.
Turned out to be the fuel pump relay (I think). Two connections were loose.