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Is it normal to hear a rattling noise at the PCV vale while running?

Tiny
FLOATR925
  • MEMBER
  • 2001 DODGE DAKOTA
  • 3.9L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
I'm told the dealer PCV valve is best. This one has been on it for about 10 months. Basic one from parts store.
I know you shake it to test but wasn't sure when running what that may mean.
Monday, October 31st, 2022 AT 4:09 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

The PCV basically limits air flow in one direction. So, when you start the engine, you may hear a click when it opens from the engine vacuum, but it shouldn't rattle when running.

Is that what you mean?

Let me know.

Joe
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Monday, October 31st, 2022 AT 7:11 PM

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