1998 Buick LeSabre Owner's Manual - Page 130

If the LightIs On Steady You may be able to i?iifli%tthe emission system malfunction by considering the following: Did you recently put fuel into your vehicle? If you experience one or more these conditions, of change the fuel brand you use. It will require at least one full tankof the proper fuel to the lightoff. turn If none of the above steps have made the light off, turn have your dealer or qualified service center check the If so, reinstall the fuel cap, making sure to fully install vehicle. Your dealer has the proper test equipment and if the the cap. The diagnostic system can determine fuel diagnostic tools to fix mechanical or electrical any cap hasbeen left off or improperly installed. loose or A problems that may have developed. missing fuel cap will allow fuel to evaporate into the Oil Pressure LightIGage atmosphere. A few driving tripswith the cap properly installed shouldturn the light off. If your vehicle has the Did you just drive through a deep puddlewater? of standard instrument panel cluster, this light If so, your electrical systemmay be wet. The condition will come on if there is will usually be corrected when the electrical system a problemwith your dries out.A few driving trips should the light off. turn OIL engine oil pressure. Have you recently changed brands fuel? of 7 3 If so, be sure to fuel your vehicle quality fuel (see with "Fuel" in the Index). Poor fuel quality cause your will engine not to as efficiently as designed. may run You notice this as stalling after start-up, stalling when you put the vehicle into gear, misfiring, hesitationon "acceleration or stumbling on acceleration. (These conditions may go away once the engine is warmed up.) This will be detected the systemand cause the light by to turn on. Standard Cluster