Low Oil Pressure

Information on Engine Low Oil Pressure Indicator on the Driver Information Center (DIC) – DTC P0521 Set – 2019-2020 Chevrolet GMC

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2019 Chevrolet Suburban

NHTSA ID Number: 10198859 Manufacturer Communication Number: 20NA161   Summary This informational bulletin advises the technician to check for a possible stuck oil pressure relief valve.     8 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET 3500 2019 CHEVROLET EXPRESS 2019-2020 CHEVROLET SILVERADO 2500 2019 CHEVROLET SUBURBAN 2019 GMC SAVANA 2019-2020 GMC SIERRA 2500 2019   Condition … Read more

6.0L L96 Low Oil Pressure And/Or P0521 – 2019 Chevrolet & GMC

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2019 Chevrolet Silverado

NHTSA ID Number: 10163661 Manufacturer Communication Number: PIP5630A Summary This Preliminary information communicates A vehicle may have a concern of no oil pressure and/or P0521 set. the relief valve in the pump is sticking or the number 1 main bearing is damaged. Drop oil pan and confirm #1 main is spun or not.  If bearings are OK Then … Read more