PCV location

Tiny
BILLYBILLY7
  • MEMBER
  • 1998 CHEVROLET CAVALIER
  • 2.2L
  • 4 CYL
  • 100,000 MILES
I cannot find PCV on my car. Is it built in my valve cover?
Saturday, December 29th, 2018 AT 4:23 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

No, it does not have a PCV valve. It is built into the valve cover.

Below is the description for you to read

Roy

This system on this vehicle no longer utilizes a PCV Valve.
Refer to Description and Operation for more information. See: Positive Crankcase Ventilation > Components

General Description
A crankcase ventilation system is used to provide scavenging of the crankcase vapors. Blow-by gases are passed through a crankcase ventilation oil/air separator into the air cleaner outlet resonator. The oil/air separator is inside the valve rocker arm cover and allows any scavenged oil to be returned to the crankcase.

Operation
The only flow through the oil/air separator is the combustion blow-by, as there is no fresh air inlet to the crankcase. The primary flow of blow-by into the separator is through the openings inside the valve rocker arm cover. The oil/air separator causes oil, which may be suspended in the blow-by gases, to be separated and drain back to the crankcase. The blow-by gases are then drawn into the air cleaner outlet resonator by normal engine vacuum and burned in the combustion process.
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Saturday, December 29th, 2018 AT 5:27 PM

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