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WHAT IS A TUNE-UP TODAY?
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 is a must in our state to confirm the vehicle's ability to meet the applicable clean air standards, and to detect gross fuel, ignition or emission problems that require attention)
Verify idle speed (should be checked even if computer controlled to detect possible ISC motor problems); Idle mixture (older carbureted engines only, but injector dwell can be checked on newer vehicles to confirm proper feedback fuel control)
Check ignition timing -- if possible (should be checked even if it is not adjustable to detect possible computer or sensor problems) Operation of the EGR valve.
SCHEDULE A TUNE-UP TODAY!
Some things never change, such as the need for periodic preventive maintenance. But a tune-up is one job that's changed a great deal over the course of automotive history. The outdated term is still widely used by many people to describe a service procedure that's supposed to make an engine run better.
There's no absolute definition of what exactly a tune-up should include, but most would agree that it involves replacing the spark plugs and performing other adjustments to maintain or restore like-new engine performance.
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Most likely, when you talk about a tune-up its probably because you're experiencing some kind of driveability problem. Your vehicle might be getting hard to start, not getting the fuel mileage it once did, hesitating or stalling, knocking or not running with the same zip and power as before. Or, your vehicle may have failed an emissions test. So what you probably need is an engine performance analysis -- and maybe a new set of spark plugs, too.
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:
In addition to these performance checks, hoses and belts should be visually inspected. All fluids (oil, coolant, automatic transmission fluid, power steering fluid and brake fluid) should also be inspected to make sure all are at the proper level, and that the appearance and condition of each is acceptable. There should be no sludge in the oil, the ATF should not smell like burnt toast, the coolant should have the proper concentration of antifreeze and not be full of rust or sediment, the brake fluid should be clear and not full of muck, etc.
WHEN TO GET A TUNE-UP
Your gas mileage is decreasing
You experience a loss of power or torque
Your engine sounds like it's running rough or stalls out at a stop
You hear knocking or pinging sounds when accelerating or after the ignition is turned off
Your check engine light remains on after your initial start
We're confident in our professionals and proud of the work we do, so let us personally show you how we care for your car. Our number-one goal is your complete satisfaction. When you leave, you should be confident, relieved, and happy. We strive to provide our customers with quality auto repair services, affordable prices, and honest service.
Tune-ups are an important part of regular vehicle maintenance and should be scheduled annually. You should schedule a tune-up sooner if you notice any of the following: