GM Air core motor revitalize using Prolube Oil

Chevrolet S10 Silverado GMC Sierra GM instrument panel gauge air core revitalize by injecting Prolube Oil. Use a syringe to draw out air from the air core motor stem/shaft waiting for the bubbles to stop then allow the oil to be drawn back in. Then apply slight pressure to force some oil inside the motor. Remove the syringe and work the motor shaft back & forth and spin it several times. The repeat using the syringe to draw out air and add more oil. Make sure to cream any oil from the stem/shaft. Make sure to keep it clean, you don’t want oil everywhere.