Does the MAF sensor have a gasket?

Tiny
STARLORD1976
  • MEMBER
  • 2008 CHEVROLET IMPALA
  • 3.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
On my MAF sensor and in the picture, it shows sensor with a gasket, but when I call auto part stores, they say it doesn’t have a gasket.
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Sunday, May 1st, 2022 AT 9:09 AM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

It doesn't have a "gasket" in the sense of a paper gasket, but instead, it has a rubber o-ring.
I'm not sure if they are confusing that with what you are referring to.

If you look below, I attached the directions for the removal and replacement of the MAF sensor. It indicates there should be an o-ring. Otherwise, there would be an air leak, and the MAF signal would be off.

Keep in mind, the o-ring is likely to stay in the air intake box. Maybe because of that, most new ones don't come with a new o-ring.

The best thing to do is remove your sensor and see if there is one on the MAF or if it is part of the air intake box.

I attached the directions below for you if needed.

Let me know what you find or if you have other questions.

Take care,

Joe

See pics below.
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Sunday, May 1st, 2022 AT 8:51 PM

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