Below are some pictures of an air intake plenum assembly and some
supporting components from a 2000 ford crown victoria
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The idle air control valve (IAC)
![](PICT4628-vi.jpg)
The exhaust gas recirculation (EGR) valve
![](PICT4631-vi.jpg)
The throttle body and the throttle position sensor (TPS)
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The location on the plenum where the IAC valve mounts.
![](PICT4635-vi.jpg)
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The location where the EGR would mount
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The location where the throttle body would mount
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This is where the plenum would normally connect to the intake manifold
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Here's the throttle body.
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And the bolts which hold the throttle body to the intake plenum
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A closeup of the throttle position sensor. From the factory, the TPS
screws have thread locker on them.
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Take note of the EGR, TPS, and throttle body gaskets
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Here's the EGR valve with the metal tube that runs to the exhaust
manifold connected. Note the flexible DPFE sensor hoses.
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When new, the metal tube twists off the egr valve with minimal effort.
But on that 100k+ mile car, you'll likely have to use an acetylene
torch to heat the connection first before using a wrench.
![](PICT4668-vi.jpg)
Here's the connection of the egr tube to the exhaust manifold. This
connection often requires lots of effort to seperate on the 100k+ mile
cars.
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This is the area of the exhaust manifold that the catalytic converter
flange would normally connect to.
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Normally, there would be a stud screwed in to hold the catalytic
converter to the exhaust manifold.
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Here's the side of the exhaust manifold which would normally be
connected flush against the cylinder head exhaust ports.
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And a closeup of the casting numbers
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Here's the pcv valve and the line which connects it to the air intake
plenum
![](PICT4700-vi.jpg)