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 change oil pump.
4 Affected Products
Vehicles
SEOCONTENT-START
Bulletin No.: PIP5630A Published date: 07/10/2019
Preliminary Information
PIP5630A 6.0L L96 Low Oil Pressure And/Or P0521
Models
Brand: Model: Model Years:
VIN:
from to
Engine: Transmissions:
Chevrolet
Express 2019 All
All 6.0 L96 All Chevrolet LCF 2019
All All 6.0 L96 All Chevrolet Silverado HD
2019 All All 6.0 L96 All Chevrolet
Suburban 2019 All All 6.0 L96
All GMC Savanna 2019 All
All 6.0 L96 All GMC Sierra HD 2019
All All 6.0 L96 All
Involved Region or Country North America
Condition A vehicle may have a concern of no oil pressure and/or
P0521 set
Cause The relief valve in the oil pump is sticking or the
number 1 main bearing is damaged.
Correction:
Check the engine oil dip stick to confirm crankcase is not over filled. Confirm oil pressure at
main gallery with a manual gauge.
If lower then spec, replace the oil filter.
If no improvement remove the oil pan and inspect for #1 main bearing damage.
If bearings are OK, change the engine oil pump. Engineering is currently working on a root cause.
This PI will be updated to a bulletin when the root cause is isolated.
Version History
Version 2
03/07/2019 – Created
Modified
Update
07/10/2019 – Updated to add 2019 Chevrolet LCF
SEOCONTENT-END
Bulletin No.: PIP5630A
Published date: 07/10/2019
To View or Download this Document Click Here
Bulletin No.: PIP5630
Published date: 03/7/2019
To View or Download this Document Click Here
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- Exquisite design: dual display pressure gauge head, clear scale, easy to clean, and equipped with rubber buffer protection cover, shockproof and scratchproof.
- Complete accessories: select high-quality metal materials, 10 adapters to fit most brands and models, suitable for most gasoline and small diesel engine cars, motorcycles, boats and other vehicles, as long as the adapter can match your engine and The oil pressure does not exceed 140PSI, each marked with a number, stored in a fixed position in the red case for easy selection.
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