Low oil pressure at startup in low temperatures
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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, Low oil pressure at startup in low temperatures in Cadillac Escalade Forums; Hi all, The past few weeks my 2005 Escalade ESV has been giving me a low oil pressure warning at ...
  1. #1
    jtkirk5598 is offline Cadillac Owners Member
    Join Date
    Jan 2004
    Posts
    45

    Low oil pressure at startup in low temperatures

    Hi all,

    The past few weeks my 2005 Escalade ESV has been giving me a low oil pressure warning at cold startup in the morning. Since I now live in Dallas, this means nighttime temps below 40 or so. The warning goes away within 5 seconds and if I open the door I can here it tick pretty loudly until the warning display goes away. When the engine is at operating temperature, it has normal oil pressure (at least at the gauge). Has anybody had this symptom? I'm wondering if the oil pump O-ring may be failing on the pickup tube. Anybody have any experiences with this issue?

    Thanks!

    Nick

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  3. #2
    jnrsesv is offline Cadillac Owners Enthusiast
    Automobile(s): '05 ESV Platinum
    Join Date
    Feb 2010
    Location
    Sunny South Carolina
    Posts
    625

    Re: Low oil pressure at startup in low temperatures

    Sounds very similar to what our 2005 did. There are a couple of guys here that had the same thing happen and in all cases the O-ring was replaced and no more problems.

  4. #3
    jtkirk5598 is offline Cadillac Owners Member
    Join Date
    Jan 2004
    Posts
    45
    That's what I was thinking. Did you do it yourself or did you have a shop do it? I'm capable of doing this easily but am getting lazy. If you had a shop do it, what did they charge? At this point I would rather throw a couple hundred at not having to bother with it myself.

  5. #4
    jnrsesv is offline Cadillac Owners Enthusiast
    Automobile(s): '05 ESV Platinum
    Join Date
    Feb 2010
    Location
    Sunny South Carolina
    Posts
    625

    Re: Low oil pressure at startup in low temperatures

    I did it myself as did others. Its not that bad of a job just a bit time consuming, I believe it took me under 5 hours IIRC but I also changed out the timing gear set as well since I had about 175,000 miles on ours and replaced the oil cooler lines.

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