Cars Technical Articles - Code P06DD No Or Low Oil Pressure

Code P06DD No Or Low Oil Pressure

- Edited: Aug 13, 2022
- Popularity: 50 Views

Makes:

GMC

Vehicles Affected:

  • 2016-2019 Cadillac CTS-V 6.2L LT4
  • 2015-2019 Cadillac Escalade 6.2L L86
  • 2016-2019 Chevrolet Camaro 6.2L LT1 LT4
  • 2014-2019 Chevrolet Corvette 6.2L LT1 LT4
  • 2014-2018 Chevrolet Silverado 4.3L LV3, 5.3L L83, 6.2L L86
  • 2019 Chevrolet Silverado LD 4.3L LV3, 5.3L L83, 6.2L L86
  • 2015-2019 Chevrolet Suburban 5.3L L83
  • 2015-2019 Chevrolet Tahoe 5.3L L83
  • 2014-2018 GMC Sierra 4.3L LV3, 5.3L L83, 6.2L L86
  • 2019 GMC Sierra Limited 4.3L LV3, 5.3L L83, 6.2L L86
  • 2015-2019 GMC Yukon 5.3L L83, 6.2L L86
  • 2015-2019 GMC Yukon XL 5.3L L83, 6.2L L86

Condition:

Vehicle setting code P06DD, no or low oil pressure, oil control valve may be stuck off commanding high oil pressures (95 psi) and or oil pump face may be damaged.

Cause:

Tensioner spring in timing chain guide may be “short” not fully seating into guide pivot end.

Correction:

Replace the timing chain tensioner guide. If the oil pump face is damaged and or worn thru replace the oil pump. Inspect bearings for damage and wear due to debris from the oil pump.

Service Procedure:

Tensioner spring in timing chain guide may be “short” not fully seating into guide pivot end.

GM Timing Chain Guide

Cycling Oil Pump Control Valve will not cause changes in oil pump response.
1) Short spring not reaching the pivot
Also, a broken tensioner shoe may allow the spring to rub a hole in the oil pump.
GM Timing Chain Guide Broken

The hole in the oil pump
GM Oil Pump With Hole