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Posts Tagged ‘car repair 53217’

FUEL SYSTEM: What affects it and the resulting issues

You car’s fuel system works with the rest of the engine control system to deliver the best performance with the lowest emissions. Check your car’s fuel system regularly or immediately if you smell gas or suspect a problem.

The fuel system transfers fuel from the fuel tank and passes it through a fuel filter for straining before it arrives at the injectors. A pressure regulator controls fuel pressure to ensure good engine performance under a variety of speed and load conditions. Fuel injectors, when activated, spray a metered amount of fuel into the engine. Some vehicles use a return line system to return unused fuel back to the tank.

Typical Wear and Tear
Intervals for fuel system maintenance may be influenced by:

  • Fuel quality
  • Vehicle age
  • Mileage/time
  • Operating conditions
  • Maintenance history

Symptoms

  • Poor fuel economy
  • Vehicle won’t start
  • “Check Engine” light is illuminated

EMISSION SYSTEM: What affects it and resulting symptoms

What is it?
Your car’s emission system keeps the engine running cleanly and efficiently in all sorts of operating conditions. A steady or flashing warning light on your vehicle dashboard indicates a problem that is currently happening and may require immediate attention. Failure to do so can reduce your gas mileage or cause your vehicle to pollute.

Your car’s emission system controls the emissions, exhaust and pollutants (including gasoline vapors escaping from the fuel tank), using an array of sensors, computerized engine controls and the exhaust components. The emission system substantially reduces harmful gases such as carbon monoxide (CO), unburned hydrocarbons (HC) and oxides of nitrogen (NOx) and, by law, must be maintained in operating condition.

Typical Wear and Tear
Some factors affecting the emission system include:

  • Driving and atmospheric conditions
  • Mileage
  • Vehicle age
  • Type of spark plug electrode material
  • Poor vehicle maintenance
  • Poor quality fuel
  • Damaged or worn sensors
  • Dry-rotted or cracked vacuum hoses

The Cost-Saving Importance of Proper Fluid Flushes

Many people don’t realize the importance of the fluid flush for their vehicle. Proper fluid flushes save car owners thousands of dollars over the life of the vehicle. Flushes prevent rust build-up inside the lines that transport the fluid. The master cylinder can fail and brake calipers and wheel cylinders can stick. Flushes also limit hose fatigue. These types of issues can happen with all your fluids, including: power steering, differential, clutch and transmission. Flushes can even prevent costly transmission replacement.

Unfortunately, we have found that not all repair shops are providing proper fluid flushes. The industry has referred to these as “drain and fills”. A proper flush is different than a drain and fill in a number of ways. A proper flush is done at regular intervals based upon climate and amount and type of miles driven. It includes cleaning out areas that trap the fluid, like a brake or clutch reservoir. It doesn’t make sense to leave the dirt in these areas and put new fluid in. The fluid will simply become contaminated with the next start-up.

An example to further demonstrate the difference follows. Draining and filling a cooling system requires draining a radiator of it’s fluid. What comes out is about 50% of the system’s capacity. This requires a technician to replace what came out, again 50% of the fluid. Now, you have 50% contaminated fluid and 50% new fluid. What will happen to the new fluid? The new fluid mixes with the old and is contaminated. So, you paid for a service and you still have dirty fluid in your system. The proper way is to flush the system thoroughly with water. This will remove all fluid from the engine, heater core, radiator, water pump and hoses. When the new fluid is added, it is clean and remains so. We do not recommend long-life coolant in any vehicle. It is toxic to the system.

Here at MARS Mobile Auto Repair Service, we always take the additional time to complete a proper fluid flush. A small amount of preventive maintenance through regular fluid flushes can save you a great deal of money down the road.