Testing & Service

Battery Testing Service

Electrical Testing

at CW Exhaust & Auto Care of Olympia

We can perform electrical testing and services on your vehicle's computer, diagnostics, battery, and engine controls. Typically, batteries should be replaced every three years, but extreme temperatures can shorten their life. We can also diagnose drivability. We want our customers to have the opportunity to feel comfortable in their vehicle. You can leave the repairs and services to our professionals, but please do not hesitate to ask us questions about why a service is needed or how an issue occurred. Give us a call at (360) 489-0589, and we will be happy to assist you.

What is it?

Your vehicle's battery, along with the starting and charging systems help ensure dependable vehicle operation whenever you drive your car, in many different driving conditions.

What does it do?

The battery stores electrical energy and the starter converts that energy into mechanical force to turn the engine for starting. The alternator produces electric current to replace what the starter used during start-up and to support electrical loads when the engine is running. An ignition module turns the low-voltage supply to the ignition coil on and off, and the coil produces the high voltage for the ignition system. This creates a spark at the spark plugs and ignites the air/fuel mixture in the engine. A belt transmits power from the front of the engine to the alternator pulley, along with other accessories.


  • Charles is very good at what he does. He fixed my husband's brakes and my client's truck. I will recommend everybody I know to him. Sabrina Chesley
  • Quality work at a great price. Charles took care of the exhaust on my truck, and did a great job on it. I highly recommend CW Exhaust and Auto Care. Curtis Bush
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