Preventive Maintenance
7 LessonsLearn systematic preventive maintenance that keeps vehicles reliable and customers happy.
Overview
Preventive maintenance is the backbone of automotive service. Most vehicles that come into the shop are there because something was neglected. This module teaches you every fluid, filter, belt, and wear item — when to inspect, when to replace, and how to sell maintenance services that actually help the customer.
Key Components
- Engine oil and filter systems
- Transmission fluid services
- Coolant system maintenance
- Brake fluid and brake inspection
- Tire rotation and alignment checks
How It Works
Preventive maintenance follows manufacturer-recommended intervals but also requires technician judgment. Severe driving conditions, climate, and driving habits all affect service intervals. Understanding why each service matters lets you explain it to the customer — and that builds trust.
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Join the Nation — FreeCommon Problems
- Overlooked cabin air filters
- Extended oil change intervals causing sludge
- Brake fluid never flushed causing ABS failures
- Coolant neglect leading to head gasket failure
- Transmission fluid not changed causing premature wear
Diagnostic Tips
- Always check fluid condition, not just level
- Document mileage and condition on every inspection
- Use UV dye to find slow leaks
- Check tire wear patterns for alignment issues
Related Systems
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