Here's a breakdown of what you should consider:
Essential Maintenance:
* Spark Plugs: Definitely replace these. They are a crucial part of ignition and will likely be worn out by 100,000 miles. Get the correct type for your engine (consult your owner's manual).
* Wires (Ignition Cables): These can crack or degrade with age and mileage, leading to misfires. Consider replacing them alongside the spark plugs.
* Air Filter: Replace the air filter. A clogged air filter restricts airflow and reduces engine performance and fuel efficiency.
* Fuel Filter: This is less frequently replaced than air filters, but at 100,000 miles, it's a good idea to replace it. A clogged fuel filter can starve the engine of fuel.
* PCV Valve (Positive Crankcase Ventilation): This valve helps prevent crankcase pressure buildup. Replacing it is relatively inexpensive and can improve engine performance and longevity.
* Oil Change (with filter): This should be done regularly, and 100,000 miles is definitely due for another one. Use the correct oil weight specified in your owner's manual.
* Transmission Fluid and Filter (if automatic): This is a crucial maintenance item for automatic transmissions. The fluid degrades over time, and a fluid change with a new filter can significantly extend transmission life. Consider a professional fluid exchange for best results.
* Coolant Flush: Flushing the cooling system removes old, degraded coolant and prevents corrosion and overheating.
* Brake Fluid Flush: Brake fluid absorbs moisture over time, reducing its effectiveness. A flush and replacement is crucial for safe braking.
* Serpentine Belt Inspection: Inspect the serpentine belt for cracks, fraying, or wear. Replace it if necessary.
Important Inspections:
* Tires: Check tire tread depth and pressure. Replace if necessary. Consider rotation and balancing as well.
* Brakes: Have your brake pads and rotors inspected. Replace if worn.
* Suspension: Inspect all suspension components for wear and tear.
* Hoses and Belts: Examine all hoses and belts for cracks, bulges, or leaks. Replace any damaged ones.
* Battery: Test the battery and have it replaced if necessary. This is more related to age than mileage, but 100,000 miles warrants a check.
* Fluid Levels: Check all fluid levels (power steering, brake, transmission, coolant).
Tools and Materials: You'll need basic tools (socket set, wrenches, screwdrivers), jack stands, and the specific parts mentioned above.
Professional Help: Some of these tasks (especially transmission fluid exchange, brake fluid flush, and cooling system flush) are best left to professionals. They have the specialized equipment and expertise to do the job correctly.
Before starting any work: Consult your owner's manual for specific maintenance schedules and recommendations for your 2002 Pontiac Bonneville. This is crucial for ensuring you use the correct parts and fluids. Ignoring the manual could damage your vehicle.
