1. Safety First:
* Disconnect the battery's negative terminal. This prevents accidental shorts or electrical issues.
* Let the engine cool completely. Working on a hot engine is dangerous.
2. Locate the Throttle Cable and Linkage:
* Open the hood.
* The throttle cable connects to the throttle body (located at the intake manifold) and the throttle lever on the transmission. You may need to look around the area of the firewall and the transmission for the linkage. The linkage will likely include the ball studs you want to lubricate.
3. Identify the Ball Studs:
* The ball studs are small, usually metal, and connect the various linkages. They're the points where the linkages pivot. They might be covered by a protective boot or grommet.
4. Prepare Lubricant:
* Use a high-quality, silicone-based lubricant. Avoid petroleum-based greases, as they can attract dirt and degrade rubber parts. A spray-on silicone lubricant with a straw applicator is ideal. White lithium grease is also acceptable, but use sparingly.
5. Lubricate the Ball Studs:
* Carefully remove any boots or grommets protecting the ball studs. If they are tightly affixed, it's likely not necessary to remove them.
* Apply a small amount of lubricant to each ball stud. A tiny drop or a very light spray is all you need. Too much lubricant can attract dirt and gum up the linkage.
* Gently work the linkage back and forth a few times to distribute the lubricant. This helps ensure the lubricant reaches all contact points.
* Reinstall any boots or grommets that you removed.
6. Re-check and Test:
* Visually inspect the linkage to ensure smooth operation and that no lubricant is leaking excessively.
* Reconnect the negative battery terminal.
* Start the engine and test the throttle response. It should be smooth and responsive. If not, there might be a more significant problem with the throttle cable or linkage.
Important Considerations:
* Don't over-lubricate. Excess lubricant can attract dirt and grime, leading to binding and sluggish throttle response.
* If you're not comfortable performing this task, take your Explorer to a qualified mechanic. Incorrect lubrication or damage to the linkage could lead to drivability problems.
* If you find excessive wear or damage to the ball studs or linkage, replacement might be necessary.
Remember to consult your owner's manual or a repair manual specific to your 1998 Ford Explorer for additional diagrams and information. Pictures will be very helpful in identifying the specific linkage components on your vehicle.
