Repairs :: Testing A Fuel Pump
Fuel pumps have a check valve that prevents the fuel from draining back into the tank when the engine is shut off. You'll need a fuel pressure gauge and the adapters to fit your vehicle. If your diagnostics lead you to believe you have a fuel pump problem, here's the proper way to check out the pump. If yours passes that test, move on to the electrical tests.. It's a major job to replace it and these pumps are expensive. if you are handy you can probably replace the battery and or alternator in your car. The problem is that the problem with your vehicle might not be caused by the battery. finding electric problems in a car can be challenging. It is very difficult to trace one of the hundreds of wires in a vehicle. You need a specialized electric automotive repair shop to find most electric problems in a vehicleor the alternator! It might be a short in a wire, a bad ground or just a sticky relay that causes the battery to drain or the alternator to not charge the battery. That is why there are professional auto repair shops! A cool engine provides two things: better working conditions with less chance of a fuel-spill related fire, and a more accurate reading of residual fuel pressure after sitting for a long time. Check out a printed or online shop manual for those.
Perform the fuel pressure check first thing in the morning, with the engine cool. Usually, the tech looks for pressure to stay within 5 lbs of the running pressure.
Fuel pumps in fuel injected vehicles are mounted inside the gas tank. So before you replace one, you better do your homework. A scope will tell you if you have a bad winding in the pump since it detects every lobe on the armature.
http://www.articlebiz.com/article/439885-1-testing-a-fuel-pump/
If your fuel pressure and leakdown readings are within spec, you'll need to check fuel delivery volume. Just like any other electric motor that meets resistance, it uses more power. Yup, that's an important test especially if your performance problems occur at high speeds or heavy throttle. If the valve isn't working properly, you'll have fuel drain back and that causes hard starting first thing in the morning. Some auto parts stores rent this test gear. Remember, the pump is always pumping against resistance (the pressure regulator and he fuel injectors). So like an EKG at your doctor's office, measuring current draw at different throttle openings tells you how the pump is performing. If you can't find a spec, use this rule of thumb-a fuel pump should deliver 1 quart of fuel in 30 seconds. You'll also need the specs for your vehicle. A properly operating auto repair fuel pump should draw from 3 to 6.5 amps.
If you own a scope, you can get even better readings. I've seen too many DIY mechanics make the assumption that their engine running problems are due to a bad pump. First, perform a fuel pressure test. Several hundred dollars later, they still have the same problem.
The electrical test can spot a fuel pump problem that evades all other diagnostics. Shop manuals have a specific procedure for performing this "leakdown" test if the vehicle is brought in warm with high fuel pressure. Some manufacturers list a volume of fuel for a specified period of time
Perform the fuel pressure check first thing in the morning, with the engine cool. Usually, the tech looks for pressure to stay within 5 lbs of the running pressure.
Fuel pumps in fuel injected vehicles are mounted inside the gas tank. So before you replace one, you better do your homework. A scope will tell you if you have a bad winding in the pump since it detects every lobe on the armature.
http://www.articlebiz.com/article/439885-1-testing-a-fuel-pump/
If your fuel pressure and leakdown readings are within spec, you'll need to check fuel delivery volume. Just like any other electric motor that meets resistance, it uses more power. Yup, that's an important test especially if your performance problems occur at high speeds or heavy throttle. If the valve isn't working properly, you'll have fuel drain back and that causes hard starting first thing in the morning. Some auto parts stores rent this test gear. Remember, the pump is always pumping against resistance (the pressure regulator and he fuel injectors). So like an EKG at your doctor's office, measuring current draw at different throttle openings tells you how the pump is performing. If you can't find a spec, use this rule of thumb-a fuel pump should deliver 1 quart of fuel in 30 seconds. You'll also need the specs for your vehicle. A properly operating auto repair fuel pump should draw from 3 to 6.5 amps.
If you own a scope, you can get even better readings. I've seen too many DIY mechanics make the assumption that their engine running problems are due to a bad pump. First, perform a fuel pressure test. Several hundred dollars later, they still have the same problem.
The electrical test can spot a fuel pump problem that evades all other diagnostics. Shop manuals have a specific procedure for performing this "leakdown" test if the vehicle is brought in warm with high fuel pressure. Some manufacturers list a volume of fuel for a specified period of time
Siemens AG (SIEGY.PK) Company Profile
This includes both geared turbines and direct drive turbines. The power generation services division offers a set of services for products, solutions and technologies of the power and gas, and wind power and renewables divisions, covering performance enhancements, maintenance. finding electric problems in a car can be challenging. It is very difficult to trace one of the hundreds of wires in a vehicle. You need a specialized electric automotive repair shop to find most electric problems in a vehicleservices, customer training and professional consulting.
Power and Gas
Digital Factory
Mobility
The Process Industries and Drives auto repair division offers a product, software, solution and service portfolio for moving, measuring, controlling and optimizing mass flows. Its healthcare products include medical imaging products, such as ACUSON NX3 Ultrasound System, SOMATOM Drive and Multitom Rax, and laboratory diagnostics products, such as Viva Drug Testing Systems and ADVIA Centaur XPT Immunoassay System. The Company operates through nine segments: Power and Gas (PG); Wind Power and Renewables (WP); Energy Management (EM); Building Technologies (BT); Mobility (MO); Digital Factory (DF); Process Industries and Drives (PD); Healthineers, and Financial Services (SFS). SFS provides financial solutions for the Company's customers as well as other companies, and also manages financial risks of the Company.
The Digital Factory division offers a product portfolio and system solutions used in manufacturing industries, complemented by lifecycle and data-driven services. The division also offers solutions and energy storage systems for integrating renewable energy into power grids, together with vertical information technology (IT) software applications that link energy consumers and producers. Healthineers is organized into six business areas: Diagnostic Imaging, Laboratory Diagnostics, Advanced Therapies, Ultrasound, Point of Care Diagnostics and Services.
https://www.reuters.com/finance/stocks/companyProfile/SIEGY.PK
The Mobility division combines all the Company's businesses in the area of passenger and freight transportation, including rail vehicles, rail automation systems, rail electrification systems, road traffic technology, IT solutions and related services. The Company's automation solutions include automation systems, such as SIMATIC Industrial Automation Systems and SIMOTION Motion Control System; industrial communication with products and systems, such as PROFINET and PROFIBUS; operator control and monitoring systems, such as SIMATIC HMI, and product lifecycle management software, such as Teamcenter, Tecnomatix and Velocity Series. The Division offers products, solutions, services and software for fire safety, security, building automation, heating, ventilation, air conditioning and energy management. The division's offerings include a portfolio of products, components and systems, such as couplings, gears, motors and converters, process instrumentation systems, process analytics devices, wired and wireless communication, industrial identification and power supplies up to systems level with decentralized control systems, industrial software as well as customized, application-specific systems and solutions. The offerings are used to process and transmit electrical power from the source down to various load points along the power transmission and distribution networks to the power consumers. The division's portfolio includes power supply solutions for conventional power plants and renewable energy systems as well as substations for urban and rural distribution networks. The division supplies to customers in discrete, process and hybrid manufacturing industries.. The Company offers Hearing Instruments Services, Imaging & Therapy Services, Maintenance Services, Spare Part Services and Energy consumption analysis, among others. The Company's power and gas portfolio includes gas turbines, steam turbines, generators, compressor trains, integrated power plant solutions, and instrumentation and control systems for power generation.
The Energy Management division offers a range of products, systems, solutions, software and services for transmitting and distributing power and for developing grid infrastructure. Its consumer products include electrical installation systems, and switches and socket outlets.
Energy Management
Financial Services
Siemens AG, incorporated in 1996, is a technology company with activities in the fields of electrification, automation and digitalization. The Company's market-specific solutions are focused on markets, such as aerospace, automotive, chemicals, data centers, fiber industry, food and beverage, machinery and plant construction, marine, mining, oil and gas, pharmaceutical industry, power utilities, transportation and logistics, water industry and wind.
The Company's Wind Power and Renewables division designs, manufactures and installs wind turbines for onshore and offshore applications. Its Energy portfolio includes products for Fossil Power Generation, High-voltage - Power Transmission, Energy Automation and Smart Grid, Compression and Expansion, Medium-voltage - Power Distribution, and Renewable Energy. Its Drive Technology includes Converters, Motors, Generators, Geared Motors, Gear Units, Couplings, and Selection and Engineering Tools. The division offers a portfolio of medical solutions along the continuum of care, from prevention and early detection to diagnosis, treatment and follow-up care. The Company competes with ABB, General Electric, Rockwell, Schneider Electric and Toshiba.
Building Technologies
The Company's product groups include automation, building technologies, drive technology, healthcare, mobility, energy, financing, consumer products and services. The division's customers include power providers, network operators, industrial companies, infrastructure developers and construction companies. The Division also offers solutions for heavy industry, the oil and gas industry and the process industries.
Healthineers
The Healthineers division is a supplier of technology, including medical imaging and laboratory diagnostics, to the healthcare industry. The digital factory division supports manufacturing companies with the transformation towards the Digital Enterprise. The Company offers its solutions for the transportation and logistics sectors.
The services of the Company include industry services, energy services, healthcare services, rail and road solutions services, logistics and airport solutions services, home appliances services, and building technologies services. if you are handy you can probably replace the battery and or alternator in your car. The problem is that the problem with your vehicle might not be caused by the battery or the alternator! It might be a short in a wire, a bad ground or just a sticky relay that causes the battery to drain or the alternator to not charge the battery. That is why there are professional auto repair shops! The division also sells gears, couplings and drive solutions to other Siemens Divisions, which use them in rail transport and wind turbines.
Power and Gas offers a spectrum of products, solutions and services for generating electricity from fossil fuels and for producing and transporting oil and gas. The division provides medical technology and software solutions as well as clinical consulting services, supported by a set of training and service offerings. The mobility division's services include consulting, planning, financing, construction, service and operation of turnkey mobility systems. The division serves utilities and independent power producers.
The Building Technologies division is a provider of automation technologies and digital services. The mobility division also provides mobility solutions for networking of various types of traffic systems. It also offers various financial solutions, such as Debt Financing, Working Capital Finance and Leveraged Finance. The Company's Building Technologies include heating, ventilation and air conditioning (HVAC) products, such as Standard controllers, home automation system Synco living, Thermostats, Sensors, and Valves and actuators. The product portfolio is based on four product platforms, two each for onshore and offshore applications. The Company is also a supplier of systems for power generation and transmission as well as medical diagnosis. Its mobility solutions include rail solutions, such as Railways Electrification and Rail Automation, and road solutions, such as Sitraffic smartGuard and Sitraffic SiBike. The Company offers its solutions to owners, operators and tenants for both public and commercial buildings, building construction general contractors and system houses.
Process Industries and Drives
Wind Power and Renewables
The Financial Services division supports its customers' investments with leasing solutions and equipment, and project and structured financing in the form of debt and equity investments
Power and Gas
Digital Factory
Mobility
The Process Industries and Drives auto repair division offers a product, software, solution and service portfolio for moving, measuring, controlling and optimizing mass flows. Its healthcare products include medical imaging products, such as ACUSON NX3 Ultrasound System, SOMATOM Drive and Multitom Rax, and laboratory diagnostics products, such as Viva Drug Testing Systems and ADVIA Centaur XPT Immunoassay System. The Company operates through nine segments: Power and Gas (PG); Wind Power and Renewables (WP); Energy Management (EM); Building Technologies (BT); Mobility (MO); Digital Factory (DF); Process Industries and Drives (PD); Healthineers, and Financial Services (SFS). SFS provides financial solutions for the Company's customers as well as other companies, and also manages financial risks of the Company.
The Digital Factory division offers a product portfolio and system solutions used in manufacturing industries, complemented by lifecycle and data-driven services. The division also offers solutions and energy storage systems for integrating renewable energy into power grids, together with vertical information technology (IT) software applications that link energy consumers and producers. Healthineers is organized into six business areas: Diagnostic Imaging, Laboratory Diagnostics, Advanced Therapies, Ultrasound, Point of Care Diagnostics and Services.
https://www.reuters.com/finance/stocks/companyProfile/SIEGY.PK
The Mobility division combines all the Company's businesses in the area of passenger and freight transportation, including rail vehicles, rail automation systems, rail electrification systems, road traffic technology, IT solutions and related services. The Company's automation solutions include automation systems, such as SIMATIC Industrial Automation Systems and SIMOTION Motion Control System; industrial communication with products and systems, such as PROFINET and PROFIBUS; operator control and monitoring systems, such as SIMATIC HMI, and product lifecycle management software, such as Teamcenter, Tecnomatix and Velocity Series. The Division offers products, solutions, services and software for fire safety, security, building automation, heating, ventilation, air conditioning and energy management. The division's offerings include a portfolio of products, components and systems, such as couplings, gears, motors and converters, process instrumentation systems, process analytics devices, wired and wireless communication, industrial identification and power supplies up to systems level with decentralized control systems, industrial software as well as customized, application-specific systems and solutions. The offerings are used to process and transmit electrical power from the source down to various load points along the power transmission and distribution networks to the power consumers. The division's portfolio includes power supply solutions for conventional power plants and renewable energy systems as well as substations for urban and rural distribution networks. The division supplies to customers in discrete, process and hybrid manufacturing industries.. The Company offers Hearing Instruments Services, Imaging & Therapy Services, Maintenance Services, Spare Part Services and Energy consumption analysis, among others. The Company's power and gas portfolio includes gas turbines, steam turbines, generators, compressor trains, integrated power plant solutions, and instrumentation and control systems for power generation.
The Energy Management division offers a range of products, systems, solutions, software and services for transmitting and distributing power and for developing grid infrastructure. Its consumer products include electrical installation systems, and switches and socket outlets.
Energy Management
Financial Services
Siemens AG, incorporated in 1996, is a technology company with activities in the fields of electrification, automation and digitalization. The Company's market-specific solutions are focused on markets, such as aerospace, automotive, chemicals, data centers, fiber industry, food and beverage, machinery and plant construction, marine, mining, oil and gas, pharmaceutical industry, power utilities, transportation and logistics, water industry and wind.
The Company's Wind Power and Renewables division designs, manufactures and installs wind turbines for onshore and offshore applications. Its Energy portfolio includes products for Fossil Power Generation, High-voltage - Power Transmission, Energy Automation and Smart Grid, Compression and Expansion, Medium-voltage - Power Distribution, and Renewable Energy. Its Drive Technology includes Converters, Motors, Generators, Geared Motors, Gear Units, Couplings, and Selection and Engineering Tools. The division offers a portfolio of medical solutions along the continuum of care, from prevention and early detection to diagnosis, treatment and follow-up care. The Company competes with ABB, General Electric, Rockwell, Schneider Electric and Toshiba.
Building Technologies
The Company's product groups include automation, building technologies, drive technology, healthcare, mobility, energy, financing, consumer products and services. The division's customers include power providers, network operators, industrial companies, infrastructure developers and construction companies. The Division also offers solutions for heavy industry, the oil and gas industry and the process industries.
Healthineers
The Healthineers division is a supplier of technology, including medical imaging and laboratory diagnostics, to the healthcare industry. The digital factory division supports manufacturing companies with the transformation towards the Digital Enterprise. The Company offers its solutions for the transportation and logistics sectors.
The services of the Company include industry services, energy services, healthcare services, rail and road solutions services, logistics and airport solutions services, home appliances services, and building technologies services. if you are handy you can probably replace the battery and or alternator in your car. The problem is that the problem with your vehicle might not be caused by the battery or the alternator! It might be a short in a wire, a bad ground or just a sticky relay that causes the battery to drain or the alternator to not charge the battery. That is why there are professional auto repair shops! The division also sells gears, couplings and drive solutions to other Siemens Divisions, which use them in rail transport and wind turbines.
Power and Gas offers a spectrum of products, solutions and services for generating electricity from fossil fuels and for producing and transporting oil and gas. The division provides medical technology and software solutions as well as clinical consulting services, supported by a set of training and service offerings. The mobility division's services include consulting, planning, financing, construction, service and operation of turnkey mobility systems. The division serves utilities and independent power producers.
The Building Technologies division is a provider of automation technologies and digital services. The mobility division also provides mobility solutions for networking of various types of traffic systems. It also offers various financial solutions, such as Debt Financing, Working Capital Finance and Leveraged Finance. The Company's Building Technologies include heating, ventilation and air conditioning (HVAC) products, such as Standard controllers, home automation system Synco living, Thermostats, Sensors, and Valves and actuators. The product portfolio is based on four product platforms, two each for onshore and offshore applications. The Company is also a supplier of systems for power generation and transmission as well as medical diagnosis. Its mobility solutions include rail solutions, such as Railways Electrification and Rail Automation, and road solutions, such as Sitraffic smartGuard and Sitraffic SiBike. The Company offers its solutions to owners, operators and tenants for both public and commercial buildings, building construction general contractors and system houses.
Process Industries and Drives
Wind Power and Renewables
The Financial Services division supports its customers' investments with leasing solutions and equipment, and project and structured financing in the form of debt and equity investments
