Exhaust valve p.side
08-07-2005, 08:03 PM
#1
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Exhaust valve p.side
What does this vacuum operated exhaust valve do? Can I unhook it? It's makeing a rattling noise.
08-15-2005, 08:16 AM
#2
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Think this is a heat riser for cold weather operation. I'd guess the vacuum closes it and it would fail to the open position so if it quiets it down with the vacuum unhooked, do it.
08-15-2005, 10:50 AM
#3
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
It blocks the passenger side manifold so that the exhaust has to go through the crossover under the manifold to warm it up.
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