Have a 2006 gto with 6.0, dose not want to start. new bat, starter. starts when it wants.
Manual or automatic transmission ? Do you know how complex the electronics are on these vehicles ? What's involved in the starting of the vehicle ?
The battery cable supplies a constant connection from the battery to the solenoid switch . The ignition switch and either the park/neutral position (PNP) switch or the clutch pedal position (CPP) switch provide inputs to the engine control module (ECM). The ECM controls the activation of the start relay.
With the ignition switch in the START position and the automatic transmission in PARK or NEUTRAL, or the clutch pressed to the floor, current flows via the start relay to the solenoid switch. This activates the solenoid switch windings. The pull-in winding causes powerful magnetism to pull in the solenoid switch plunger. The hold-in winding holds the plunger in and the pull-in winding deactivates.
The solenoid switch simultaneously closes the switch contacts to connect terminal 30 to the DC motor and pivots the fork lever to engage the drive assembly to the flexplate or flywheel ring gear.
When the solenoid switch contacts close, current flows from the battery through the DC motor, which spins and provides cranking torque.
The engine control module (ECM) controls the operation of the start relay. When the ignition switch is turned to the START position , the ECM will enable the start relay for 1 second. If the ECM does not receive the correct theft deterrent signal from the powertrain integration module (PIM), it will disable the starter relay. If the ECM receives the correct signal from the PIM, it will continue to enable the start relay. When the engine has started and the engine speed is above 500 RPM, the ECM will disable the start relay, preventing starter engagement while the engine is running.
Mar 28, 2018 |
Cars & Trucks