Tools You'll Need:
* Socket wrench set (probably a 7/16" or 1/2" socket for the distributor hold-down bolt)
* Phillips head screwdriver (may be needed depending on the hold-down)
* New distributor cap and rotor
* Optional: A timing light (to verify timing after replacement, not strictly necessary for the cap and rotor swap itself but recommended)
* Shop rags or paper towels
Procedure:
1. Locate the Distributor: The distributor is usually located on the top of the engine, near the firewall. It's a cylindrical component with wires connected to the top (cap).
2. Disconnect the Wires: Carefully disconnect the spark plug wires from the distributor cap. It's crucial to remember which wire goes to which spark plug. Take a picture or number them clearly. Some caps have markings to help.
3. Remove the Distributor Cap: Once the wires are disconnected, gently lift off the distributor cap. Look inside; you should see the rotor.
4. Remove the Rotor: The rotor is usually held in place by a simple friction fit. It should just pull straight off. If it’s stubborn, gently wiggle and pull it.
5. Remove the Distributor Hold-Down: There's a bolt or clamp holding the distributor to the engine. Locate and remove this. It's typically on the side of the distributor.
6. Install the New Rotor: Carefully install the new rotor onto the distributor shaft, ensuring it's seated properly.
7. Install the New Distributor Cap: Place the new distributor cap onto the distributor body, ensuring it aligns correctly with the rotor.
8. Reconnect the Spark Plug Wires: Carefully reconnect the spark plug wires to the distributor cap in the same order you removed them (refer to your picture or numbering).
9. Secure the Distributor: Tighten the distributor hold-down bolt or clamp.
10. Reconnect the Battery: Reconnect the negative battery terminal.
11. Test and Verify: Start the engine. Listen for any misfires or unusual sounds. Ideally, use a timing light to double-check the timing is still accurate. If the timing is significantly off, you may need to have it adjusted by a mechanic. If the engine runs roughly, double-check all spark plug wire connections.
Important Considerations:
* Engine Off: The engine must be completely off and cool before starting this procedure.
* Sharp Edges: Be careful of sharp edges on the distributor and cap.
* Wiring Order: The order of the spark plug wires is critical for proper engine operation. If you're unsure, consult your vehicle's repair manual.
* Timing: While replacing the cap and rotor usually doesn't affect timing, it's a good practice to verify it afterward. Significant timing issues point to a bigger problem beyond the cap and rotor.
If you're not comfortable performing this task yourself, it's best to take your Tahoe to a qualified mechanic. Incorrect installation can damage your engine. A repair manual specific to your 1995 Chevy Tahoe is also highly recommended.
