Quote:
Originally Posted by mountie
76r... Could you take a photo ( photos), of what that area of your engine looks like now?
EVERY truck after the '70's have an "air pump".. also called a smog pump.
Your right side exhaust manifold should have connections for the attached plumbing, and there is a small pigtail / vacuum hose that will connect.
Yellow - most of smog system.
Orange - sensor pigtail / vacuum hose.
Red arrow- Smog Pump.
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There were more trucks made without air pumps than with. There is also a tube that goes around the back of the engine to supply fresh air to the left exhaust manifold.
Quote:
Originally Posted by mountie
If 76r could post a picture, showing the lower passenger area... Then we can see what is missing - needed. ( Is the smog mount bracket there?)
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We need a pic of the emissions label, so we can determine if this is an item the truck had from the factory.
OP, It will look like this. It will have a vacuum diagram. It may be black.
