Parts:
- Spark plugs (8)
- Spark plug wires (8)
- Distributor cap
- Distributor rotor
- PCV valve
- Air filter
- Fuel filter
- Serpentine belt
- Coolant
- Oil
Tools:
- Socket set
- Spark plug wrench
- Screwdriver
- Pliers
- Funnel
Instructions:
1. Start by removing the air filter. The air filter is located in the engine compartment, on top of the engine. It is held in place by a cover that is secured by screws or clips.
2. Next, remove the spark plug wires. The spark plug wires are located on the top of the engine. They are connected to the spark plugs by rubber boots. To remove a spark plug wire, simply pull it off of the spark plug.
3. Remove the spark plugs. The spark plugs are located at the end of the spark plug wires. Use a spark plug wrench to loosen and remove the spark plugs. Be careful not to drop the spark plugs into the engine.
4. Replace the spark plugs with new ones. Make sure that the new spark plugs are gapped correctly. The gap specification is usually printed on the packaging of the spark plugs.
5. Replace the spark plug wires. Make sure that the spark plug wires are connected to the correct spark plugs.
6. Replace the distributor cap and distributor rotor. The distributor cap and rotor are located on the side of the engine, near the spark plug wires. To remove the distributor cap, simply remove the screws that hold it in place. Then, remove the rotor by pulling it off of the distributor shaft. Replace the cap and rotor with new ones.
7. Replace the PCV valve. The PCV valve is located on the back of the engine, near the valve cover. It is held in place by a rubber grommet. To remove the PCV valve, simply pull it off of the grommet. Replace the PCV valve with a new one.
8. Replace the air filter. Replace the old air filter with a new one.
9. Replace the fuel filter. The fuel filter is located under the chassis of the vehicle, near the fuel tank. It is held in place by two clamps. To remove the fuel filter, simply loosen the clamps and pull the filter off. Replace the fuel filter with a new one.
10. Replace the serpentine belt. The serpentine belt is located on the front of the engine. It is wrapped around the water pump, power steering pump, and alternator. To remove the serpentine belt, you will need to use a wrench to loosen the tensioner pulley. Once the belt is loose, you can remove it from the pulleys. Replace the serpentine belt with a new one.
11. Add coolant. The coolant reservoir is located on the passenger side of the engine compartment. It is marked with a "Coolant" label. To add coolant, simply remove the cap of the reservoir and pour in coolant until the level reaches the "Full" mark.
12. Add oil. The oil fill cap is located on the top of the engine, near the valve cover. It is marked with an "Oil" label. To add oil, simply remove the cap of the reservoir and pour in oil until the level reaches the "Full" mark.
Once you have completed all of these steps, your 2003 Chevy Trailblazer will be tuned up and ready to go!
