Vacuum hose diagrams, May 2002
These were based on the existing hose locations on my truck, and do not show the California and High Altitude variants.
This diagram (3 of 4) intends to show how the driver's side of the carb is interconnected.
The EGR valve is located on the intake manifold, under, and forward, of the carburetor.
The distributor's vacuum advance is easily located at the front of the engine
The triangular vacuum connector is easy to recognise (red arrow), but tends to be hidden behind other hoses.
Diagram 1
Diagram 2
Diagram 4
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