The "Check Engine" Light is On. What Should I Do?
When you start your vehicle, the check engine light comes on momentarily to test the engine/emission
control system and bulb. The system is self-diagnostic and the light is a way to communicate trouble. The system is
designed to function in a "limp home" mode when trouble occurs and the light comes on - and stays on. However, we recommend that you call our Hadley Service Center right away. Our technicians have specialized tools and are trained to access
trouble codes stored in the vehicle's memory each time the light is illuminated. This is a sophisticated system, with
the ability to detect and store information about even the slightest changes.
One item which may seem insignificant
but which can cause the system to detect trouble is a loose or missing fuel filler cap. Remove the cap, then tighten
it until it clicks. If you are unsure whether the loose cap was the cause or if the light stays on, visit our Service Center on Route 9, Hadley, MA.
For more information, check
your Owner's Manual.