PCV Solenoid, Does everyone have one? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 12-24-1999, 01:35 PM Thread Starter
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PCV Solenoid, Does everyone have one?

My Jeep doesn't have the PCV Solenoid. Do I need this to complete my emmissions system?

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<font color=blue>1985 CJ7 4.2L, T-176, Dana 300, 2.5" lift, 32"BFG MT, Durabak</font color=blue><font color=red> On-Board Air</font color=red>
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post #2 of (permalink) Old 12-24-1999, 01:57 PM
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Re: PCV Solenoid, Does everyone have one?

No, There was a bulliten to remove it or plumb around it. There was also a bulliten to remove the vapor door in the air cleaner. The problem with the vapor door is hot soak, and causing a hot re-start problem.

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post #3 of (permalink) Old 12-24-1999, 06:10 PM Thread Starter
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Re: PCV Solenoid, Does everyone have one?

Currently my PCV is connected to the carb, vapor can, and one of the pulse air tubes. Is this correct? What is the vapor door? Is it the door in the snorkel that closes for cold weather starts?

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<font color=blue>1985 CJ7 4.2L, T-176, Dana 300, 2.5" lift, 32"BFG MT, Durabak</font color=blue><font color=red> On-Board Air</font color=red>
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post #4 of (permalink) Old 12-25-1999, 01:00 AM
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Re: PCV Solenoid, Does everyone have one?

The purpose of the PCV solenoid is to block the PCV line when the engine RPM drops below about 1200 RPM....this is to allow the engine to idle at a lower RPM. It does not hurt anything for it to not be there if you don't mind the higher RPM and slight lean mis.


John......southern CA
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