Here's how to adjust it, but proceed with caution:
Tools You'll Need:
* Socket wrench and sockets: To access the cable adjustment. You'll need the right size for the cable adjuster.
* Screwdriver (likely Phillips): Possibly needed depending on the cable adjuster design.
* Owner's manual: Consult it for specific torque specifications and diagrams if available.
* Jack and jack stands (strongly recommended): To safely work underneath the vehicle.
* Wheel chocks: For added safety.
Procedure:
1. Safety First: Engage the parking brake, chock the wheels, and use jack stands to securely lift the car. Never work under a car supported only by a jack.
2. Locate the Kickdown Cable: The kickdown cable connects from the throttle linkage to the transmission. It's usually located on the passenger side of the engine compartment, near the firewall.
3. Identify the Adjustment: The adjustment mechanism is usually a turnbuckle or a similar device on the cable itself. It may be accessible from the engine bay or may require reaching under the car.
4. Disconnect the cable (optional but recommended): For easier adjustment, you might want to disconnect the cable from the transmission. This makes it easier to manipulate the cable without accidentally over-adjusting while trying to re-attach it. *Take note of the cable's position before disconnecting it to aid in reinstallation.*
5. Adjust the Cable: With the engine OFF, adjust the cable using the turnbuckle or other adjustment mechanism. There's no single universally correct setting. The goal is to find the point where the throttle linkage is fully open (wide open throttle - WOT), and the kickdown cable is *just* starting to engage at the transmission.
6. The "Feel" Method (Most Common): This is a subjective process. Have someone depress the accelerator pedal to the floor while you observe the kickdown cable. You want just the slightest amount of slack in the cable before the transmission linkage is engaged. Too tight, and the transmission may shift harshly. Too loose, and the kickdown won't engage properly. This usually involves small, incremental adjustments. It's best to err on the side of slightly too loose at first.
7. Road Test (Crucial): After making an adjustment, carefully lower the vehicle, and perform a road test. Pay close attention to how the transmission shifts under acceleration. If the shifts are harsh, adjust the cable slightly looser. If the kickdown isn't engaging properly, tighten it slightly. Repeat this process until you achieve smooth, consistent shifting.
8. Reconnect the cable (if disconnected): If you disconnected the cable, carefully reconnect it ensuring it's properly seated.
9. Torque Specification (If Applicable): If your owner's manual provides a torque specification for the cable adjustment, ensure you meet it.
Important Considerations:
* Transmission Condition: A worn or malfunctioning transmission may require more adjustments or may not respond well to adjustments.
* Throttle Linkage: Ensure your throttle linkage is properly adjusted and free of binding. Problems here can affect kickdown cable adjustment.
* Professional Help: If you are uncomfortable or unsure about this process, seek professional help from a qualified mechanic. Incorrect adjustment can damage your transmission.
This process is inherently a bit trial and error. It takes patience and careful observation to achieve optimal results. Remember, safety is paramount. If you're not mechanically inclined, it's best to leave this job to a professional.