Oil pressure fluctuations

Asked by Guru8SG6 May 02, 2017 at 07:04 PM about the 2005 Chevrolet Trailblazer LS RWD

Question type: Maintenance & Repair

Gage going from 40 to 20

1 Answer
221,025

Rowefast answered 7 years ago

The oil pressure does go from 20 lbs to 40 lbs when driving. Once the rpms are up it should read around the 40 lbs mark or even more. Idling oil pressure is 20 lbs.

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