Covina (626) 331.6295 | Map & Hours
Upland (909) 982.1396 | Map & Hours
La Verne (909) 593.1516 | Map & Hours
Covina (626) 331.6295 | Map & Hours
Upland (909) 982.1396 | Map & Hours
La Verne (909) 593.1516 | Map & Hours
Since 1996, all vehicles have been equipped with an On-Board Diagnostics (OBD) system that continuously monitors engine performance. When a discrepancy is detected, the system triggers a warning light—such as “Check Engine” or “Service Engine Soon”—indicating that your vehicle may require diagnostics or a tune-up. Engine diagnostics help identify potential issues by retrieving diagnostic trouble codes (DTCs) from your vehicle’s computer. These insights allow our technicians to assess the condition of your engine and determine the necessary repairs. Many diagnostic codes relate to powertrain issues, affecting performance and efficiency.
Regular engine tune-ups are essential for maintaining optimal performance and preventing unexpected breakdowns. During a tune-up, our service team may replace essential components such as spark plugs, spark plug wires, the air filter, the fuel filter, and the distributor cap and rotor. We also inspect emission levels, fuel lines, belts, and hoses to ensure everything is functioning correctly. Routine diagnostics and tune-ups not only enhance engine efficiency but also extend the lifespan of your vehicle.
While regular maintenance is key to keeping your engine in peak condition, there are certain warning signs that indicate the need for immediate attention. If your “Check Engine” light illuminates, it's crucial to have your vehicle inspected as soon as possible. The OBD system stores trouble codes that our technicians can access to diagnose the issue.
Additional signs of engine trouble include slow cranking, rough idling, stalling, knocking, or pinging during acceleration. A noticeable drop in fuel efficiency or a loss of power when accelerating may also suggest the need for an engine tune-up. By addressing these issues early, you can prevent minor problems from escalating into costly repairs.
If your vehicle is showing any of these warning signs, don’t wait—schedule an engine diagnostic or tune-up with Sunland Tire today.
Sunland Tire proudly serves customers in La Verne, CA, Covina, CA, Upland, CA, and the surrounding areas for all their engine diagnostics and performance needs.
