Problem Reports

Chevrolet Express 2500

Report: Check Engine Light Due to Loose or Worn Gas Cap

• Check Engine Light Due to Gas Cap Issue
  A Loose or worn gas cap may cause Check Engine Light to illuminate.

  Common Problems > Chevrolet Express 2500

• Check Engine Light Due to Restricted Secondary Air Injection Check Valves
  One or both secondary air injection check valves may become restricted causing poor air flow re...

  Common Problems > Chevrolet Express 2500

• Check Engine Light and Misfire Due to Stuck Fuel Injectors
  One or more fuel injectors may become stuck closed causing an engine misfire  and the Chec...

  Common Problems > Chevrolet Express 2500

• Intake Manifold Gaskets May Leak Coolant or Engine Oil
  The intake manifold gasket may develop and external engine oil or coolant leak. In some cases,...

  Common Problems > Chevrolet Express 2500

• check engine light
  My check engine light would sometimes come on in the winter. This last winter it did not. Now i...

  Q&A > Chevrolet > 2003 Chevrolet Express 2500