I am trying to replace the turbo bypass (dump) valve (aka "hooter" valve) on my 1990 SAAB 900 SPG but I can't for the life of me find the damn thing. I found some info and a pic at:
Can anyone help me out here? I must be blind...
I am trying to replace the turbo bypass (dump) valve (aka "hooter" valve) on my 1990 SAAB 900 SPG but I can't for the life of me find the damn thing. I found some info and a pic at:
Can anyone help me out here? I must be blind...
There is a valve, plastic I think, about 1.5" in diam and maybe 2" long. Hose comes from near the throttle plate to the boot which connects to the turbo intake. There is also a small vacuum hose connected to the thing. It is just behind the turbo intake and probably there is a heater hose on top of it.
I am looking at an 85 and 86 900 T.
Charles.
in article snipped-for-privacy@nospam.xyz, Scott I. Remick at snipped-for-privacy@nospam.xyz wrote on 20/07/2004 00:31:
Find the throttle butterfly on your intake manifold. Opposite the butterfly is a half inch width pipe that gradually gets wider and ends up at the "hooter" valve.
It recirculates turbo-charged air back into the pre-turbo air pipe when the throttle is closed. If you don't have one, get one fitted - they're about 20 UKP new from SAAB or some other Bosch dealer.
Paul
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