gnx547

I have 95 mustang with the power dyne and I found one end of the surge valve not connected. The bottom part connects to the cat and where does the left hose of the valve connect to? Does it connect to the bottom part of the egr valve?




On the valve there is a nipple, should there be a vacuum line connected on top of it? I found a vacuum line that is not connected and wondering if there should be a line on top of the valve?




There is another valve to the right that connects to the smog pump, is that another surge valve?





On the intake tube there is another valve that looks like a surge valve, so I have a total of 3 surge valve, what is the purpose of having all 3 of these valves?

mjr46

yes the vaccum line connects to the valve

gnx547

Does the big hose on the left of the valve connect to the EGR valve?

mjr46

egr valve connects to fitting on header

luckythirteen13

in the last pic, the valve on the intake is your bypass valve for the sc. it should have a vacuum line going from it, to your intake manifold

gnx547

From the first pic, where does the big hose on the left of the valve go to?

luckythirteen13

it should be going to a metal pipe that runs to the back of each head. its designed to pump fresh air from the smog pump into the back of the heads and into the exhaust ports. this helps the first set of cats work better

gnx547

I looked from the top at the back of the heads and I don't see any airtubes. It this air tube noticeable? How big is it? Is it only seen from going under the car? Does this hose need to be connected to the airtube?

luckythirteen13

its for emissions so if you dont have to pass smog then you dont need it. if the last owner took it off, your going to want to make sure they did it right by plugging up the hole in the back of the heads.

the tube should be easily seen because it wraps around the side of the head and points forward on the passenger side.

gnx547

I looked again and I don't see the tube and I don't see any tube by the passenger side. I would assume it would be close to the hose of valve, The previous owner must of removed it. What is used to plug the holes in the back of the heads? Are there 2 holes, one hole for each head? These holes on the back of head, are they on top, middle, or bottom of the head? The heads on the car are edlebrock.