I thought that I'd post some pictures...
This is how you remove the vacuum hoses.
They end up getting stuck and have to be "broken" free.
Don't pull on the vacuum hose if its stuck, you may break something.
Pry the tube off with a flathead screwdriver, or grip it lightly and twist it with a pliers to "crack" it loose.
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Don't pull on the wires of the connector. They will break.
Grip the connector with a pliers and wobble it around to crack it free, then pull...
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The pliers pushes the locking clip down then holds the connector firmly.
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The solenoid connects to the bracket like this...
There is a lip/clip on the solenoid that snaps into the bracket.
Push it down and out of the way.
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The oval plug thing is a vent/filter.
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It can be removed and put on the proper port.
Take a bunch of pictures of what you have before you surf any work.
Do one solenoid at a time.
The vacuum tubes and electrical connectors can be removed first.
Then you can even break the old solenoid off.
The new solenoid will just push in until it clicks.
They're all pretty much the same.
My pictures are from the PRC solenoid valve that I replaced.
It's the same solenoid, but it has one brass port.
It may be a better quality solenoid because it's working with the fuel control system ??