Hissing FDV?

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Hissing FDV?

Post by mnde » Wed Dec 28, 2005 11:47 am

When Mr D Rutherford delivered my BX to me :) he remarked that the intermittent hissing noise from the engine bay was apparently the FDV, and demonstrated that the hissing stops as soon as one turns the steering wheel.

Sometimes it falls silent, sometimes the hissing resumes as soon as you let go of the steering wheel. What could it be?? The LHM seems to have last been changed in March 2004.

1982 Citroen GSA Spécial Estate
1997 Renault Mégane RT 1.4e
1991 Citroen BX16 TGS Meteor - gone to Scotland

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Post by Vanny » Wed Dec 28, 2005 4:13 pm

FDV needs overhauling at a guess!

The noise is pressure only just getting past a valve within the FDV, i suspect the hissing is from a seal in there some where?

Cavmad has this on one of his BX's and i've seen it many times before. I think it can be caused by low pressure, but everybody i know who has sat and changed the pump has found no difference, so i'd guess its an FDV overhaul!

But i know nothing about FDV problems :D