Spark Plug Replacement Guide: Timing, Symptoms, and Next Steps
Wondering how often to replace spark plugs? Know when it’s time to service your ignition system with these signs — from rough idle to poor fuel efficiency.
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Your transmission helps transfer power from the engine to the wheels—and it needs clean, cool fluid to keep shifting smoothly. In automatic vehicles, transmission fluid also creates the hydraulic pressure needed to change gears.
Regular inspections and fluid changes are key to keeping your transmission in good shape. Many manufacturers recommend scheduled transmission maintenance, so check your owner’s manual–or ask one of our experts–and don’t wait until there’s a problem.
Is it time for a transmission inspection or maintenance service appointment? Look for these signs of transmission trouble:
If you notice any of these symptoms or you've reached the manufacturer-recommended mileage point for a transmission service appointment, schedule a transmission service appointment at your nearest Firestone Complete Auto Care.
Safety Note: If you experience slipping, a complete loss of drive, or loud grinding, do not operate the vehicle. Immediate towing for professional diagnostics is crucial to prevent catastrophic and costly damage.
Pro Tip: Always use the exact OEM-specified transmission fluid for your vehicle; using incorrect fluids can severely compromise performance and longevity.
When you get your transmission serviced at your local Firestone Complete Auto Care, you have a few options to fit your needs. All fluid exchanges are made according to the fluid specifications recommended by your vehicle manufacturer. We offer the following transmission services:
Transmission service intervals vary between vehicle models and transmission types. Check your owner’s manual for an exact recommendation, or contact your nearest Firestone Complete Auto Care for maintenance service tips. Our expert technicians know your vehicle manufacturer's recommended maintenance schedule, so you can get the right service for your vehicle.
Following your manufacturer-recommended service intervals for transmission fluid is important in helping keep transmission fluid clean and free of debris. Over time, the additives in transmission fluid that lubricate, cool, and clean the gears eventually wear out. When this happens, debris (like tiny metallic compounds shed from worn gears) can wreak havoc on transmission parts.
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