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Intake manifold plenum crack surrounding IAT sensor

Tiny
GORDON2
  • MEMBER
  • 1998 HONDA ACCORD
  • 2.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 240,500 MILES
My car listed above has an Intake Air Temperature (IAT) sensor that attaches to the upper portion of my intake manifold, which my Haynes book refers to as a plenum. There is a crack surrounding the IAT sensor. Is this a concern? Should I try to patch the crack? The car runs well.
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Friday, July 6th, 2018 AT 2:10 PM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, Danny here.
It is possible to get a false reading having that crack. You can try to patch by using JB Weld on aluminum. I did this a a Ford van intake when it had a porous crack leaking Anti-freeze. Just be sure to not get any on the sensor so it could still be removable in the future in needed. Danny-
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Friday, July 6th, 2018 AT 8:59 PM

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