Tune-Up Checks Any tune-up today should start with a battery of performance checks to base line or confirm the engine's overall condition. These should include: Battery voltage (very important with all of today's onboard electronics). Charging voltage. Power balance or dynamic compression (to identify any mechanical problems such as leaky exhaust valves, worn rings, bad head gasket, bad cam, etc. that could adversely affect compression and engine performance) Engine vacuum (to detect air leaks as well as exhaust restrictions) Operation of the fuel feedback control loop (to confirm that the system goes into closed loop operation when the engine warms up) Scan for fault codes (to verify no fault codes are present, or to retrieve any codes that may be present so they can be diagnosed and eliminated) Check exhaust emissions (this should be a must in any area that has an emissions testing program to confirm the vehicle's ability to meet the applicable clean air standards.
You'll have to call and ask them specifically what to do regarding what you are wanting done on your car. Most dealerships have different prices for whatever it is that you're needing to have done but for a basic tune up that vary from dealership to dealership however Modesto Toyota does excellent work
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