Auto Repair in Mesa AZ. "Trustworthy Mechanic" do exist?
- Author Mike Rux
- Published February 4, 2010
- Word count 932
Full-Service Auto Repair
Services offered: RV Repair & Service, Auto Air Conditioning Repair, Axle and Differential, Brake
Repair, Carburetors, Catalytic Converter Replacement, Cooling System Service & Repair,
Diagnostics, Diesel Repair, Drive ability, Driveline & Axle Shafts, Electrical Systems, Emissions, Engine, Engine Major Repair, Engine Minor Repair, Exhaust and Muffler, Extended Warranty Service, Hybrid Service, Oil Change, Scheduled Maintenance, Steering and Suspension, Synthetic Oil Change, Transmission Major Service, Transmission Minor Service, Transmissions, Tune-ups, Hot Rod & Race Car Building, High Performance, European Exotics, Mechanic, Technician, Auto Repair Shop.
Services performed on: Acura, AMC, Audi, Bentley, BMW, Buick, Cadillac, Chevrolet, Chrysler,
Daewoo, Daihatsu, Datsun, Dodge, Eagle, Ferrari,Ford, GEO, GM, Honda, Hummer, Hyundai, Infiniti, Isuzu, Jaguar, Jeep, Kia, Lamborghini, Land Rover, Lexus, Lincoln, Mazda, Mercedes-Benz, Mercury, Merkur, Mitsubishi, Nissan, oldsmobile,
Peugeot, Plymouth, Pontiac, Porsche, Saab, Saturn, Scion, Sterling, Subaru, Suzuki, Toyota,
Volkswagen, Volvo, Jaguar, Mercedez, Lotus.
Free Diagnostic Information:
Engine analyzers come in varying sizes:
-Big box
-Hand-held
An engine analyzer should be considered one of the essential tools for any type of drive ability diagnostics, not just
intermittent. No other single piece of equipment can provide as much information about the basic function of the
engine. The engine analyzer of today is typically hand-held, versus the big box of yesterday. Although there are
some benefits to the hand-held such as portability; there are also draw backs, such as fewer features and smaller
screens. To overcome this drawback, many hand-held engine analyzers can now display directly on a PC monitor for
easier viewing and greater clarity.
Offer similar features:
-Starting and charging system tests
-Ignition system analysis
-Cylinder balance test
-Relative compression test
-Cylinder time variations
Big box or hand-held, most engine analyzers offer similar features that are helpful in diagnosing intermittent
problems. Since many drive ability related problems are still related to basics, the engine analyzer is a fast and
effective way to pin-point drive ability problems in a wide variety of areas.
Late Model Vehicles are complicated:
In the past, there were two common methods of dealing with intermittent problems. First, we could wait until the intermittent problems becomes consistent or at least repeatable. Then we could apply standard diagnostic techniques to solve the problem. Second, we could start at the front of the vehicle and begin changing parts until either the problem goes away or, at the very least, becomes less of a problem. The first solution seldom works because customers need there vehicles to be ready for the daily commutes, nor do they want to drive a vehicle with a known problem waiting for it to break. The second solution is an even bigger problem, as the customer will end up paying for parts that we most likely don't need. Or worse yet, the unneeded parts end up costing a customer way too much money, therefore a good, knowledgeable auto repair shop is needed.
Automotive diagnostic strategies:
Barometric pressure, manifold pressure, intake air temperature, volumetric efficiency and exhaust gas recirculation these items are all involved along with modifiers like battery voltage, coolant temperature and throttle position. Of course you have to look at trim, short term fuel trim and the adaptive strategy being long term fuel trim. The most important input to the PCM needs for most any calculation is engine speed. This input comes from a sensor that is located in the distributor. The PCM must see what the engineer designed it to see of the vehicle won't run.
-Barometric pressure, when the key is first turned to the on position, the PCM reads the BARO sensor to determine the altitude the vehicle will be operating at. Higher altitudes have less dense air and less molecules of oxygen in a given volume of air.
-Manifold absolute pressure or (MAP) is the measurement of potential air. This measurement tells the PCM how much air is ready to enter the combustion chamber when the intake valve opens.
-Intake air temperature or (IAT) hot air is less dense than cold air. Volumetric efficiency, this value is stored in the PROM. It is a value measured by the engineer when the vehicle was developed that represents the amount of air that has the ability to enter the cylinder on the intake stroke at a given rpm.
-Exhaust gas recirculation or (EGR) the PCM needs to know how much exhaust gas is being recirculated into the cylinders to effectively know the real weight of the air in the chamber. This action performed by the EGR system actually cools the cylinders to reduce NOX emissions and engine ping. Modifiers tweak the calculated values to compensate for operating conditions that always change.
-Battery voltage, the PCM looks at battery voltage as an input to modify parameters, which is important to all systems and will maintain fuel efficiency and catalyst. Therefore a good battery in is crucial to all operating systems!
-Coolant temperature, when cold the engine coolant temperature or (ECT) will cause the PCM to add time to the base pulse width or (BPW) to compensate for lack fuel vaporization. The PCM will never subtract time for BPW, it will only add. The ECT is the main control sensor when the engine is cold or in closed loop. When the engine warms up, it remains in closed loop and the o2 or oxygen sensor takes charge.
-Throttle position sensor or (TPS) affect the BPW in two ways. The PCM looks at throttle position to
determine which strategy to use (idle, cruise or wide open throttle). The PCM looks for rate of change from the TPS to effect BPW and cause either and accelerator pump effect or a fuel cut effect.
Our Business was born in 1987 by Mike Rux who has acquired over 30 years of experience. Mike brought his son into the business at a young age they both continue to satisfy and wow mesa Arizona with their outstanding knowledge of the Automotive Industry! Michael Rux, has been serving the Mesa area with excellent service and prices since 1987. Recently he has moved to a new location off Higley and McKellips in Mesa.
http://www.autorepairinmesa.com/services
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