Vacuum line location
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Senior User
Joined: Aug 2007
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Vacuum line location
I have a smallYellow (about 1/8") vacuum line this has broken and is hanging on the passenger side of the engine bay close to the motor. There is a label under the hood that tells where the vacuum lines should go and this Yellow line is to go from something called AIR D SOLENOID to a component called the AIR D. But I cannot find either of these items anywhere. I have no engine lights and the truck is running ok.
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
That is probably the air injection diverter valve line. Follow the line running from the AIR pump to the first valve you find in the line. See if it is missing a vacuum line, else it is the diverter valve to the cat that is missing a vacuum line which should be the next valve in the AIR line.
