One problem related to engine oil leaking has been reported for the 2003 GMC C2500. The most recently reported issues are listed below.
Instrument panel cluster components failed thus all gauges on dash board went "flat"/back to -0-; vehicle did operate however could not even read how much gas was in tank. Also as of mileage of 13312 notice vehicle began to use oil, as of 26300 after watching the vehicle noticed that it was extremely low; apparently the vehicle has been leaking oil on the intake - loosing almost 2 quarts of oil - on a newer vehicle it should not be using this much oil.
| Engine And Engine Cooling problems | |
| Engine Oil Leaking problems | |
| Engine Cooling System problems |