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Old 10-30-2023, 07:59 PM   #3
78F350
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Join Date: Jul 2014
Location: Oklahoma
Posts: 3,817
Garage
Quote:
I have a replacement vacuum canister, but wanted to confirm. Is it just a small phillips screw that holds it in/on?
Yes, a single screw holds it to the bracket.
Quote:
I noticed the one little plastic line that sorta "wraps around it" (not the one directly connected to the reservoir) is broken in half. I believe that line would go to the electronic changeover valve correct?
Correct, the changeover valve for the secondary air injection.
Quote:
Are there any other valves/parts I should replace "while I'm in there" (under the manifold)?
A good visual inspection of the plastics: Oil filler tube, long tube that crosses from the AOS to the PCV valve at the left front.
Check the wires that connect to the knock sensors - often chewed by rodents.

I've posted various diagrams of the vacuum system here over the years and they should be easy to find with a search. I can pull one up if needed.
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