GM Cadillac Deville_Fleetwood_ELD_Seville 1990-1998



When there is a problem starting or driving a vehicle, two of the most important checks involve the ignition and the fuel systems. The questions most mechanics attempt to answer first, "is there spark-" and "is there fuel-" will often lead to solving most basic problems. For ignition system diagnosis and testing, please refer to the information on engine electrical components and ignition systems found earlier in this guide. If the ignition system checks out (there is spark), then you must determine if the fuel system is operating properly (is there fuel-).

While servicing the fuel system, fuel vapors can collect in enclosed areas such as a trunk. To reduce the risk of fire and increased exposure to vapors:

Use forced air ventilation such as a fan.
Plug or cap any fuel system openings in order to reduce fuel vapor formation.
Clean up any spilled fuel immediately.
Avoid sparks and any source of ignition.
Use signs and any necessary warning to alert others in the work area that fuel system work is in process.

Always wear safety goggles when working with fuel in order to protect the eyes from fuel splash.