Buick Century 1999 Owner's Manual
![Buick Century 1999 manual cover](/images/YBpBVasDBReuvpNGDdXkcQPv/thumbs/thumb175x175.webp)
The recommended oil type for a 1999 Buick Century is 5W-30. It's best to use high-quality oil that meets the API certification.
To reset the "Check Engine" light, you can disconnect the battery for about 15 minutes. If the light persists, it may indicate a more serious issue that should be checked with an OBD-II scanner.
The recommended tire pressure for the 1999 Buick Century is typically 30 PSI for the front and rear tires. Always check the owner’s manual or the sticker on the door jamb for specific recommendations.
To improve fuel efficiency, ensure regular maintenance like air filter changes, maintain proper tire pressure, and use the recommended oil type. Avoid excessive idling and aggressive driving.
If the AC is blowing hot air, it could be due to low refrigerant levels, a faulty compressor, or a blend door issue. It's best to have the system checked by a professional.
To replace the headlight bulb, open the hood and remove the retaining clips on the headlight assembly. Pull the assembly out and replace the bulb, then reassemble.
Overheating can be caused by a variety of issues such as a faulty thermostat, a leaking radiator, or a malfunctioning water pump. Check coolant levels and inspect for leaks.
It's recommended to change the transmission fluid every 30,000 to 50,000 miles, but consult the owner's manual for specific guidance.
Poor acceleration can be due to clogged fuel injectors, a dirty air filter, or a failing mass airflow sensor. Performing regular maintenance can help mitigate these issues.
To diagnose a faulty alternator, check for dimming lights or a dead battery. Use a multimeter to test voltage output; it should read between 13.5 and 14.5 volts when the engine is running.