How often changing distributor cap rotor on a 1996 Toyota 4 cylinder Camry. to change too?

The distributor cap and rotor in a 1996 Toyota Camry 4-cylinder engine should be inspected every 30,000 miles or 24 months, whichever comes first. If they show signs of wear, such as cracks, breaks, or corrosion, they should be replaced. It's also a good idea to replace them if the engine is running rough or if the spark plugs are fouled.

When changing the distributor cap and rotor, be sure to follow the instructions in your vehicle's owner's manual. Here are the general steps involved:

1. Disconnect the negative battery cable.

2. Remove the distributor cap by removing the screws or bolts that hold it in place.

3. Remove the rotor by pulling it straight up.

4. Inspect the distributor cap and rotor for cracks, breaks, or corrosion. If any of these are present, replace the distributor cap and rotor.

5. Install the new rotor and distributor cap by aligning them with the distributor and gently pressing them into place.

6. Reinstall the screws or bolts that hold the distributor cap in place.

7. Reconnect the negative battery cable.

After installing the new distributor cap and rotor, it may be necessary to adjust the ignition timing. This should be done by a qualified mechanic.