Pontiac Sunfire 1998 Owner's Manual
![Pontiac Sunfire 1998 manual cover](/images/fkFSNUPnZEFkfGgESpLBZcft/thumbs/thumb175x175.webp)
The recommended oil type for a 1998 Pontiac Sunfire is 5W-30.
To reset the 'Check Engine' light, disconnect the battery for about 15 minutes, then reconnect it. If the issue persists, diagnose the problem using an OBD-II scanner.
The spark plug gap for the 1998 Pontiac Sunfire should be set to 0.060 inches.
The 1998 Pontiac Sunfire is equipped with a timing chain, which typically does not require regular replacement unless there are specific issues.
The recommended tire pressure for a 1998 Pontiac Sunfire is 30 psi for both front and rear tires.
First, check the fuses and relays related to the air conditioning system. Ensure the refrigerant level is adequate and inspect for any visible leaks. If issues persist, a professional diagnosis may be required.
The 1998 Pontiac Sunfire requires Dexron III automatic transmission fluid.
To improve fuel efficiency, ensure regular maintenance such as timely oil changes, maintaining proper tire pressure, and replacing air filters when needed. Avoid rapid acceleration and excessive idling.
Possible causes include a malfunctioning thermostat, low coolant levels, a faulty radiator, or a broken water pump. Thoroughly inspect these components to diagnose the issue.
To replace the headlight bulb, remove the retaining screws on the headlight assembly, unplug the electrical connector, and replace the old bulb with a new one. Reassemble the components in reverse order.