GM Service Manual Online
For 1990-2009 cars only

Low Oil Pressure Due to Restriction in the Hose for GMC Truck GMC P42 Commercial Chassis 1999

Problem

Action

The hoses are kinked.

  1. Remove the kinks.
  2. Replace the hoses as needed.

A foreign object is stuck in the hoses.

  1. Remove the foreign object.
  2. Replace the hoses as needed.