!978 Sedan EGR Thermal switch is broken
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The Classic Cadillac Forum Discussion, !978 Sedan EGR Thermal switch is broken in Past Cadillac Vehicle Discussion; My friends 78 Sedan DeVille has a broken TVS switch which screws into the block below the distributor. This TVS ...
  1. #1
    carnut is offline Cadillac Owners Master
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    !978 Sedan EGR Thermal switch is broken

    My friends 78 Sedan DeVille has a broken TVS switch which screws into the block below the distributor. This TVS is orange with 5 nipples on it. One nipple is blocked off when the vacuum hoses are reinstalled on it. I cannt find this switch anywhere. RockAuto or any local parts store. I can get a three nipple one but I'll need to know which nipple goes where. Hopefully someone here has had this issue and got around it? Thanks for any help.

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  3. #2
    CaddyGas's Avatar
    CaddyGas is offline Cadillac Owners Fanatic
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    Re: !978 Sedan EGR Thermal switch is broken

    I hear O'Reilly auto parts warehouse in California has one. You do mean vacuum ported/delay switch right?

  4. #3
    carnut is offline Cadillac Owners Master
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    Re: !978 Sedan EGR Thermal switch is broken

    Yes! What part number did you find? Thanks!

  5. #4
    CaddyGas's Avatar
    CaddyGas is offline Cadillac Owners Fanatic
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    Re: !978 Sedan EGR Thermal switch is broken

    Come to find out it was for 76, don't know if it is compatible with 78, cause of the EFE. #EC927

  6. #5
    carnut is offline Cadillac Owners Master
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    Re: !978 Sedan EGR Thermal switch is broken

    bump

  7. #6
    carnut is offline Cadillac Owners Master
    Automobile(s): 1988 Allante' (sold), 1984 Eldorado, 84 Sedan DeVille
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    67
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    Re: !978 Sedan EGR Thermal switch is broken

    bump

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