Vortec 3500 Straight-Five Engine
The five-cylinder was seen as a way to achieve better fuel economy and performance than the six, but with more power and torque than the four. Back in 2002,General Motors developed what would become a new series of Vortec inline four-, five- and six-cylinder engines. All of the engines in the “Atlas” engine lineup share
ASE PS2 Test Preparation Guide: Fuel System
● FUEL PUMP — Delivers fuel from the fuel tank to the engine. Fuel injected engines usually have a tank-mounted, high-pressure electric pump. Older carbureted vehicles used an engine-mounted, low-pressure mechanical pump. Most EFI fuel pumps operate at 35 to 85 PSI or higher. Designs vary and include single- or double-vane, roller-vane, turbine or gerotor
ASE PS2 Test Preparation Guide: Engine Parts
● BEARINGS — Provide support for the crankshaft and camshaft. A thin film of oil between the bearings and shafts reduce friction and prevent wear. Most late model original equipment engine bearings are aluminum, or aluminum with a steel backing. Older engines typically use tri-metal (babbit and copper/lead over steel) rod and main bearings. Worn
ASE PS2 Test Preparation Guide: Heating, Ventilation & Air Conditioning (HVAC)
● COMPRESSOR — Pumps refrigerant to the condenser and evaporator to cool the passenger compartment, and pulls refrigerant vapor from the evaporator to compress it. Most compressors are belt-driven (a few hybrids have electric compressors). A “magnetic clutch” on the compressor pulley cycles the compressor on and off as needed to control cooling. Some compressors
ASE PS2 Test Preparation Guide: Automatic Transmission/Transaxle
● AUTOMATIC TRANSMISSION — A transmission that shifts itself using engine RPM, load and other inputs to regulate shift points and gear engagement. Late model automatics have electronic/hydraulic controls operated by the Powertrain Control Module (PCM) or its own Transmission Control Module (TCM). Most late model automatics have five or six gears (speeds), though some
OEM (Original Engine Management) Expands to Body Systems Parts
FT. LAUDERDALE, Fla. – In addition to ignition, engine management and filters, OEM has expanded its lineup of Body Systems parts. Blower motor resistors (BMR), turn signal switches (TSS), power window switches (PWS) and pigtail sockets (PS) are a few of the new products being introduced, with coverage offered for import as well as domestic
19th Annual Technical Forum: Batteries
How can you tell if a battery needs to be replaced?
19th Annual Technical Forum: Belts & Hoses
When do belts and hoses need to be replaced?
19th Annual Technical Forum: Chassis Parts
How often should chassis parts be replaced?
19th Annual Technical Forum: CV Halfshafts
Is it easier to replace a worn constant velocity joint, or to replace the entire halfshaft?