General Maintenance

It’s Time for the 21st Century Tune-up

Times are changing…cars are changing. One of the biggest changes in today’s automotive industry is the perception of a “tune-up.” Ask 10 vehicle owners their definition of a tune-up and chances are there’ll be 10 different answers. The classic “tune-up” was once the heart of the automotive business and contrary to some beliefs; today’s modern vehicles still need tune-ups to keep them performing at the most efficient levels.  It’s just that the “tune-up” is completely different now.

tobias-closeThe tune-up was historically associated with the routine replacement of key ignition system parts like spark plugs and ignition points, condenser, distributor rotor, and cap, along with some basic adjustments to help “tune” the engine. Mounting pressure for increased fuel economy and lower emissions drove the car manufacturers to adopt electronics and to do away with ignition points in the ’70s, along with the carburetor in the middle ’80s. This eliminated the need for the replacement and adjustment of a growing number of ignition and fuel system parts.

As the pace of technology quickened, the procedures required to perform a traditional tune-up changed dramatically. Highly sophisticated ignition and fuel systems are now the norm, using one or more onboard computers to control critical engine and transmission management functions. Things that were once handled mechanically are now controlled electronically through the widespread use of onboard computer technology.

Because vehicles have changed so much over the years, the Car Care Council has introduced the 21st Century Tune-up. This program is designed to help re-define and educate motorists as to what a tune-up should consist of on today’s modern vehicles.

tools“There is a misconception that today’s modern vehicles don’t need tune-ups because they never break down, but that simply is not true,” said Rich White, executive director of the Car Care Council. “If you’re at work and your computer goes down, you can’t get any more work done. It’s the same with your vehicle. If the vehicle isn’t being properly maintained, you’re not going to get where you want to go.”

As part of the 21st Century Tune-up on today’s modern vehicles, the following systems should be inspected:

 

    • 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, 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.

Vehicle owners ask for tune-ups for a variety of reasons, including improving performance, passing state required emissions testing, maintaining reliability, planning a vacation, preparing for winter/summer or because they’re giving the car to a friend or family member.

To help ensure good performance, fuel economy and emissions, the Car Care Council also recommends that motorists take the time necessary to become familiar with their vehicle from every aspect. Study the owner’s manual to become thoroughly acquainted with the operation of all systems. Pay special attention to the indicator lights and instruments.

Getting Your Vehicle Ready for Summer

Summer’s heat, dust, and stop-and-go traffic, will take their toll on your vehicle. Add the effects of last winter, and you could be poised for a breakdown. You can lessen the odds of mechanical failure through periodic maintenance. . . Your vehicle should last longer and command a higher resale price, too!  Mechanical failure—an inconvenience anytime it occurs–can be deadly in the Summer.  Preventive maintenance is a must. Besides, a well-maintained vehicle is more enjoyable to drive, lasts longer, and could command a higher resale price.

Some of the following tips can be performed by any do-it-yourselfer; others require the skilled hands of a professional auto technician.

  • Engine Performance – Get engine drivability problems (hard starts, rough idling, stalling, diminished power, etc.) corrected at a good service facility. Hot weather makes existing problems worse.  Hot engines are twice as hard to start requiring the battery be in very good condition. Replace dirty filters-air, fuel, etc. make sure tires are up to the manufacturer’s specified pressure.
  • Fuel – Make sure to put the fuel that the manufacturer recommends.  Using Regular Unleaded where Premium or 91 octane fuel is required will diminish fuel economy, increase un-healthy emissions, and possibly cause engine damage.  Saving a few bucks at the pump could be the costliest thing you ever did to your car.
  • Oil – Change your oil and oil filter as specified in your manual—more often (every 4,000 miles) if your driving is mostly stop-and-go or consists of frequent short trips.  Most cars today have a calculator algorithm built in but pay attention to it.  Perform routine maintenance when specified or sooner.  It can’t hurt.
  • Cooling Systems – The cooling system should be completely flushed per the manufacturer’s specification. The level, condition, and concentration of the coolant should be checked periodically. (A 50/50 mix of anti-freeze and water is usually recommended.) DIYers, never remove the radiator cap until the engine has thoroughly cooled! The tightness and condition of drive belts, clamps, and hoses should be checked by a pro.  You can no longer determine if a belt is worn to replacement visually.  There is a specific tool required.  They’re cheap, sometimes free, just go to the parts store and ask.
  • Windshield Wipers – Replace old blades. Our climate is harsh, purchase rubber-clad blades. Stock up on windshield washer solvent-you’ll be surprised how much you use.  I actually carry a spare set of blades in the trunk and install when it rains or just before monsoons.  After-all, they just rot on the windshield if you’re not using them.
  • Heater/Defroster – The heater and defroster must be in good working condition for passenger comfort and driver visibility. Newer models have a cabin air filter that should be replaced periodically. Check your owner’s manual for the location and replacement interval.
  • Battery – Wear eye protection and rubber gloves.  The only accurate way to detect a weak battery is with professional equipment. Routine care: Scrape away corrosion from posts and cable connections; clean all surfaces; re-tighten all connections. If battery caps are removable, check fluid level monthly. Avoid contact with corrosive deposits and battery acid.
  • Lights – Inspect all lights and bulbs; replace burned out bulbs; periodically clean road grime from all lenses. To prevent scratching, never use a dry rag.
  • Exhaust System – Arizona’s dry climate really helps your exhaust system last.  We rarely replace exhaust components because of corrosion.  Usually, it’s because of an emissions problems.  Your vehicle should be placed on a lift and the exhaust system examined for leaks. The trunk and floor boards should be inspected for small holes. Exhaust fumes can be deadly.
  • Tires – Worn tires will be of little use in summer weather. Examine tires for remaining tread life, uneven wearing, and cupping; check the sidewalls for cuts and nicks. Check tire pressures once a month. Check the tires when they are cold, before driving for any distance. Rotate as recommended. Don’t forget your spare, and be sure the jack is in good condition.
  • Air Conditioning - A marginally operating system will fail in hot weather. Have the system examined by a qualified technician. Newer models have cabin air filters that clean the air entering the heating and air conditioning system. Check your owner’s manual for location and replacement interval.
  • Brakes - Brakes should be inspected as recommended in your manual, or sooner if you notice pulsations, grabbing, noises, or longer stopping distance.  Having an inspection annually regardless of mileage is prudent, after-all, they stop the car right?  Minor brake problems should be corrected promptly.
  • Battery - Wear eye protection and rubber gloves.  Batteries can fail any time of year. The only accurate way to detect a weak battery is with professional equipment. Routine care: Scrape away corrosion from posts and cable connections; clean all surfaces; re-tighten all connections. If battery caps are removable, check the fluid level monthly. Avoid contact with corrosive deposits and battery acid. 
  • Carry emergency gear: WATER, WATER, WATER, gloves, boots, blankets, flares, a small shovel, sand or kitty litter, tire chains (for winter snow, what’s that?), and a flash light. Put a few “high-energy” snacks in your glove box.

Keeping Your Vehicle in Tune with the Environment

Car care is definitely a win-win situation. Besides helping the environment, a properly maintained and operated vehicle will run more efficiently, will be safer, and will last longer-up to 50% longer, according to a survey of ASE-certified Master Auto Technicians. The following tips should put you on the road to environmentally conscious car care.

  • Keep your engine tuned. A misfiring spark plug can reduce fuel efficiency as much as 30%. Follow the service schedules listed in your owner’s manual. Replace filters and fluids as recommended.
  • Check your tires for proper inflation. Under inflation wastes fuel-your engine has to work harder to push the vehicle. Wheels that are out-of-line (as evidenced by uneven tread wear or vehicle pulling) make the engine work harder, too. Properly maintained tires will last longer, meaning fewer scrap tires have to be disposed.
  • Keep your air conditioner in top condition and have it serviced only by a technician certified competent to handle/recycle refrigerants. Air conditioners contain CFCs-gases that have been implicated in the depletion of the ozone layer. According to the Environmental Protection Agency, almost one third of the CFCs released into the atmosphere come from mobile air conditioners; some simply leaks out, but the majority escapes during service and repair-so it’s important to choose a qualified technician.
  • Do-it-yourselfers: dispose of used motor oil, anti-freeze/coolant, tires, and old batteries properly. Many repair facilities accept these items, WE DO!  Or call your local municipal or county government for recycling sites. Never dump used oil or anti-freeze on the ground or in open washes.
  • Observe speed limits. Mileage decreases sharply above 55 mph (who drives 55?).
  • Drive gently. Avoid sudden accelerations and jerky stop-and-go’s. Use cruise-control on open highways to keep your speed as steady as possible.  This very important and surprisingly, the cruise control is used very rarely anymore?  Gas is very expensive, stop with the fast starts and stops and go to a steady speed and saves tons of cash!
  • Avoid excessive idling. Shut off the engine while waiting for friends and family. Today’s vehicles are designed to “warm up” fast, so forget about those five-minute warm ups on cold winter mornings.
  • Remove excess items from the vehicle. Less weight means better mileage. Store luggage/ cargo in the trunk rather than on the roof to reduce air drag.
  • Plan trips. Consolidate your daily errands to eliminate unnecessary driving. Try to travel when traffic is light to avoid stop-and-go conditions. Join a car pool.

Remember, how your car runs, how you drive it, and how its fluids, old parts, and tires are disposed of all have serious consequences on the environment.