This might be a silly question but do I need dielectric grease to install an ignition failure sensor where it mounts on to the thermostat housing assembly?

  • Welcome to the site. What vehicle are you working on? Year/Model/Engine? – Pᴀᴜʟsᴛᴇʀ2 Jan 18 '17 at 20:58
  • @Pᴀᴜʟsᴛᴇʀ2 2005 Kia Sedona 3.5L V6. – Menachem Eliyahu Jan 18 '17 at 21:01

No you don't, but it's a good idea anyways. The sensor connector should have a gasket on it as well.

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old sensor

Here's a picture of the bottom of the old sensor. I thought it sat flush on the thermostat housing, but it's actually mounted on two posts above the housing. In any case, RPM gauge works now.

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