Erratic oil temp

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2004-2007 Cadillac CTS-V General Discussion Discussion, Erratic oil temp in Cadillac CTS-V Series Forum - 2004 - 2007; Driving today I noticed my oil temp was rising again, shut off a/c and it immediately went down, A/c on ...
  1. #1
    gregj1006 is offline Cadillac Owners Fanatic
    Automobile(s): 2005 CTS-V
    Join Date
    Aug 2009

    Erratic oil temp

    Driving today I noticed my oil temp was rising again, shut off a/c and it immediately went down, A/c on it went back up. Did the washer about 3wks ago and it was fine,

    Appreciate any/all replies

  2. #2
    alradco's Avatar
    alradco is offline Cadillac Owners Fanatic
    Join Date
    Oct 2011

    Re: Erratic oil temp

    How high was it?

  3. #3
    heavymetals's Avatar
    heavymetals is offline Cadillac Owners Master
    Automobile(s): 05 maggied CTS-V, 03 maggied Z06
    Join Date
    Nov 2004

    Re: Erratic oil temp

    Go back to the washer.

    Clean the surface under the strut with a wire brush.

    Spray contact cleaner on the threads and surface.

    Wire brush the contact surface of the bolt, and both sides of the cable terminal.

    Spray the bolt threads with contact cleaner.

    Reassemble: bolt, star washer, cable terminal to surface.

    Clean the engine ground (near the starter) the same way.

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