A normal charging-voltage reading doesn't always mean the alternator is healthy. In this episode of Around the Wheel, take a closer look at alternator AC ripple, what causes excessive ripple, and why it can create difficult-to-diagnose electrical problems on today’s vehicles.

The Cal-Van Tools 7-pc Oxygen Sensor Socket Set, No. 84200CV, is designed to provide an easy method to remove and install various sensors, sending unit, vacuum switches, and injectors on most domestic and import vehicles. Offset sockets are compromised of SAE and metric sized sockets, to be used with 3/8" or 1/2" drive ratchet and breaker bars.

The Power Probe PPFUSE Fuse Monitor helps technicians diagnose parasitic draw by measuring current across fuses without removing them. Lights on the back of the PPFUSE indicate if a circuit is active, inactive, or open to identify circuits with a draw quickly, and the digital display shows real-time current readings.

The Matco Tools Maximus Plus 2.0 Diagnostic Scan Tool, No. MDMAXPLUS2, is designed to deliver OE-level functionality with full software coverage, with no additional purchase required for all available 2- and 4-wheel passenger vehicle makes.

The Ranger Professional Wheel Balancer, No. DST30PX, is an upgrade for shops seeking higher precision, faster workflow, and a more advanced measuring system for today’s increasingly oversized wheels. Its new hood and reinforced chassis accommodate wheel assemblies up to 43 inches in diameter weighing up to 145 lbs.

The Mac Tools 1/2" High Torque Impact Wrenches, Nos. MCF961B and MCF961GH1, are built for demanding fastening applications with powerful performance and jobsite-ready durability. Delivering up to 1,900 ft-lbs of breakaway torque and 1,320 ft-lbs of max fastening torque, they help tackle tough bolts with confidence.