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Vacuum hose near pcv valve


HawaiiB2300

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2001
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Mazda B2300
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Automatic
Hello, I’ve got a 2001 B2300. It’s idling rough and almost dyeing so I’ve been replacing parts. I just replaced the PCV valve and while I was doing that, I noticed this vacuum hose hanging out. Can someone please tell/show me where it is supposed to be plugged into?
 

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Colin

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2WD / 4WD
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Whereabouts is that in the engine bay? I'm not familiar with the 4 cylinders
 

HawaiiB2300

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Hey, thanks for the reply Colin. I think I figured it out. I found a spot in the bottom of the manifold. Unfortunately, it didn’t do anything for my idle and almost stalling when I’m at a red light. I’m continuing down the list of things to replace.
 

Colin

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Tried cleaning the IAC yet?
 

HawaiiB2300

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Mazda B2300
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Yeah, that was one of the first things.
IAC
Air filter
Spark plugs...which led to valve cover gasket
PCV valve

Next up:
Fuel filter
 

Colin

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2004
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Mazda
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
2WD
Tried spraying around the engine with brake cleaner to see if the idle changes?
 

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