how many solenoids are in a 4l60e transmission
GM 4L60-E transmission The 4L60-E family of transmissions use 2 shift solenoids, initially called Shift Solenoid A & Shift Solenoid B, later changed to comply with OBD II (On Board Diagnostics revision 2) regulations to 1-2 Shift Solenoid & 2-3 Shift solenoid. By activating and deactivating the solenoids in a predetermined pattern by the PCM, 4 distinct gear ratios can be achieved. The shift solenoid pattern, also sometimes referred to as solenoid firing order, is as follows;
Honda Accord (North America seventh generation) Mechanically, the 4-cylinder engine was the all new K-series. For the first time the 4-cylinder Accord gained a direct ignition (distributorless) coil-on-plug ignition system, which had previously been introduced on the V6. The direct ignition system provides a slight horsepower and fuel economy gain, as well as improved long-term reliability, relative to the traditional system with a distributor and spark plug wires. In addition, Honda provided a new recommendation for engine oil viscosity, 5W-20 instead of the previous 5W-30 viscosity. Because of the lower viscosity, engine parts move with less friction, which increases fuel economy. Together with other improvements, this change effected an increase from the previous generation's (with VTEC 4-cylinder F23A1 engine and the manual transmission) 22mpg city/29 hwy rating, to 23mpg city/31 hwy, according to 2008 EPA ratings. The 4-cylinder engine could be mated to a 5-speed manual transmission or to a 5-speed automatic transmission with overdrive (also new for 2003). A specific 4-cylinder model was the first production car in the world to meet California's Super Ultra Low Emissions standards.