- May 22: GM Duramax Diesel Lawsuit Awaiting Appeals Court Decision news | 1 days ago
- May 7: GM Transmission Lawsuit Affects Hydra-Matic 8L90 and 8L45 news | 16 days ago
- April 17: GM Shift to Park Recall Needed, Alleges Class Action Lawsuit news | 36 days ago
- March 10: GM Trucks Suffer Automatic Emergency Braking Incidents recalls | 74 days ago
- March 4: GM to Replace Engines in 2023 Colorado, Silverado 1500, GMC Sierra 1500 news | 80 days ago
Chevrolet TSB #PIP5630D
2019 Chevrolet Suburban
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- Summary
- This Preliminary information communicates A vehicle may have a concern of no oil pressure and/or P0521 set. the releif 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.
Click a tab for more information.