Gap the new plug using a spark plug gap tool. You can find the recommended gap ratio on the engine displacement label on the underside of the hood or the front engine frame rail. There will be a minimum to maximum gap ratio. Figure gone what they charge per generation, and that's how still cash you'll be saving by doing it yourself.
Instructions
1. Construct certain that the engine is not close or sizzling. Confess it to algid down before attempting to interchange the Glimmer plugs.
2. Dust the Glimmer plug wire cavity conscientious below the valve contain with a shop rag to luminous any debris or dirt.
3. Twist the first spark plug wire boot on the left to loosen it from the spark plug, and pull it off. Only remove one wire at a time. Do not remove all the wires, or you may mix up the firing order.
4. Place the spark plug socket (with black rubber insert) onto the extension and place that on the ratchet. Loosen the first plug and extract it from the chamber.
5.
You don't include to be a certified mechanic to exchange Glimmer plugs in your 1994 Saturn SL2. There are a couple of inexpensive tools you could obtain to constitute it easier, and you can add them to your assemblage and handle them again subsequent on. It may catch you a half time or so the cardinal age you arrange it, on the contrary you'll be still faster the closest era, and chances are, most repair shops are going to charge you a Apartment lodgings standard much interval to modify the four Glimmer plugs. Match the gap on the new spark plug within the ratio suggested.6. Apply a small amount of spark plug grease to the very top of the spark plug, insert the plug into the socket and remove the extension from the ratchet. Thread the new spark plug into the chamber by hand at first to make sure you're threading it properly. Cross-threading a spark plug can cause serious damage to a cylinder. Tighten with the ratchet; do not over-tighten.
7. Replace the plug wire pressing down securely until the boot locks into place.
8. Repeat the procedure for the second, third and fourth spark plugs.
9. Start the engine to make sure it's running properly.
