Intake manifold plenum crack surrounding IAT sensor

1998 HONDA ACCORD
240,500 MILES • 2.3L • 4 CYL • 2WD • AUTOMATIC
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GORDON2
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  • 76 POSTS
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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Jul 6, 2018 at 2:10 PM
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DANNY L
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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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-
Jul 6, 2018 at 8:59 PM
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