Really poor design to have a PCV valve built into the intake manifold that causes replacement of the intake manifold when the PCV valve goes bad, but instead I'm going to install a 5/8th inch one way valve soon in the PCV vacuum hose which will do the same thing for a few dollars. Also when the PCV valve goes bad it causes a check engine light with P1101 power train code and P0174 running lean code and a rough idle and engine surging and poor MPG, but if you pull off the PCV vacuum hose and stop the vacuum leak with your hand the engine instantly starts running normal and the check engine light goes off, so I know that using a one way valve is a cheap solution instead of replacing the intake manifold plus all the labor!
Really poor design to have a PCV valve built into the intake manifold that causes replacement of the intake manifold when the PCV valve goes bad, but instead I'm going to install a 5/8th inch one way valve soon in the PCV vacuum hose which will do the same thing for a few dollars. Also when the PCV valve goes bad it causes a check engine light with P1101 power train code and P0174 running lean code and a rough idle and engine surging and poor MPG, but if you pull off the PCV vacuum hose and stop the vacuum leak with your hand the engine instantly starts running normal and the check engine light goes off, so I know that using a one way valve is a cheap solution instead of replacing the intake manifold plus all the labor!
- Korey M., Fort Payne, AL, US