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    HIgh Oil Pressure

    Last oil change was at dealer, so no clue as to oil and filter. Dealer changed oil last 2-3 times I took it in for high oil pressure. Right now in the cold, I start it up, and it idles at 50. 50-60 at moderate speeds even when warm. When warmed up really good, may ilde at 45+, but closer to...
  2. A

    HIgh Oil Pressure

    I have a 2008 Yukon XL. The oil pressure gauge started reading high, so dealer replaced sensor. Now it operates at idle or slow speeds with no load between 50 and 70 psi. My last Yukon never went above 40. Dealers says no worries, but I am. Any input appreciated.

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