With wear and tear, the timing belt in your 1997 Chevy S10 may stretch, which causes the ignition timing to need adjustment. An ignition timing adjustment can help restore the performance and fuel economy of your truck to acceptable levels. This adjustment can be performed on the 1997 Chevy S10 in 20 minutes or less.
Instructions
1. Start the Chevy by turning on the ignition. Allow your truck to run until the engine reaches operating temperature. Leave it in Park and rev the engine speed up to 3,000 rpm two or three times by pressing on the gas pedal. Turn off the ignition.
2. Open the hood of the S10. Remove the yellow cap from the ignition timing adjustment on the wiring harness. Locate this in the rear of the engine. Connect all pins on the white, green, and brown wires using a small jumper.
3. Connect cables of the timing light to the main battery of the S10. Clip the timing light cable to the first spark plug wire at the front of the engine in the S10. Restart the ignition.
4. Loosen the nuts that attach the distributor cap to the top of the distributor using a 12 mm wrench. Rotate the S10 distributor clockwise until you can line up the pointer on the timing belt with the notch on the crankshaft pulley. Disconnect the jumper wire and timing light from the engine of the Chevy S10.
5. Drive the S10 to verify that the timing is properly adjusted.
Tips Warnings
Always use caution when working on vehicles.
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