Here's what you need to know about the plugs and wires:
* Spark Plugs: The recommended spark plug type will be in your owner's manual, but generally, a common replacement type for the 2.8L V6 would be something like AC Delco R45TS or similar (check your owner's manual!). Always replace spark plugs with the correct type for your engine.
* Spark Plug Wires: These are the wires that run from the distributor cap to each spark plug. They're typically a high-voltage, silicone-coated wire. They should be replaced if cracked, brittle, or showing signs of significant wear. The firing order is crucial; getting this wrong can lead to misfires and poor engine performance.
* Firing Order: The firing order for the 2.8L V6 is critical. You must find the correct firing order for your specific engine in your owner's manual or a reliable online resource like a repair manual for that year and model. Getting the wires in the wrong order will cause major problems.
* Distributor Cap and Rotor: These are also part of the ignition system and should be inspected for wear and tear when you're working on the spark plugs and wires. Cracks or excessive carbon buildup can cause misfires.
To find the precise information for your specific 1987 Pontiac Fiero V6:
1. Consult your owner's manual: This is the most reliable source of information.
2. Use a repair manual: A Haynes or Chilton repair manual for your vehicle will have detailed diagrams and specifications.
3. Online resources: Websites like forums dedicated to the Pontiac Fiero often have detailed information from experienced owners and mechanics.
Important Note: Working on the ignition system involves high voltage. Disconnect the negative battery terminal before starting any work. If you are not comfortable working on your car's ignition system, it's best to take it to a qualified mechanic.
