Turbo charged engines must be idled down to allow the turbo to spool down and even out the temperature in the turbo this is done either by using oil cooling or the engine coolant or both in combination.The engine needs to be running to circulate the oil and coolant if you shut the engine down without idling the engine down it can burn the oil or coolant and in many cases both which will cause carbon blockages in the oil feed and coolant feed and hamper lubrication leading to catastrophic turbo failure (fires and explosions)
The idle shutdown mechanism depends on how the ECM is set up... there are many ways this can be done. Running it at high idle might or might not override the idle shutdown, dependent on how the parameters are set. If you have ambient air temperature override, you can tape a hand warmer to the temperature sensor.
The idle control valve works by regulating the idle speed of the engine. The idle speed of the engine is usually controlled by the engine of the computer.
A "bang bang" or anti-lag system is a way to reduce the lag in a turbocharged car by introducing fuel into the engine during idle time, but only igniting it when the engine exhaust valves are open. See the related link for some more details and a discussion of its legality in the UK.
because that's kind of a big engine
Depends on how it's programmed. Electronic motors can be set up with an idle shutdown timer which can be set at whatever interval the person doing the programming wishes. If there is no idle shutdown timer, the truck can idle until it's out of fuel. Idling is not a recommended practice, however - at low idle, insufficient force is generated by the pistons to force all of the carbon (a byproduct of fuel combustion) out of the pistons, and the end result is a carbon ridge which forms at the top of the cylinder.
Well, high idle has to be enabled - some fleets have it disabled. If it isn't disabled, it's more the same as on any other semi.. doesn't matter if you have a Volvo or Cummins engine (or Cat prior to 09, or Detroit prior to 2003). With the parking brakes set, and no pressure on the clutch (if you have one) or brake pedals (position must be at absolute zero... same thing with regens), then you just press the "Resume/Accel" button and it'll bump up your idle. On Volvos, this is typically on the end of the turn signal/mulitifunction switch on the left side of the steering column. Exactly what this will do for you depends on a number of things... it may or may not bypass an idle shutdown timer, depending on how stringent the company was when they had the parameters set in the ECM.
of Idle
does the engine have a carburetor or is it fuel injected? A carbed engine has mixture screws along with a base idle screw, a fuel injected engine the idle is computer controlled.
Since it is starting from 0, the engine idle is low.
A picture of an idle??? Idle is a state of operation not an actual part. As in, the engine is idling at 750 rpms. A picture of an engine at idle would look almost exactly like a picture of an engine that is running at 3000 RPM or shut off.
The idle speed control solenoid controls the idle of the engine when the air conditioning is engaged. Since the ac pump draws down the engine idle the solenoid increase the idle when the ac is on.
low idle and uneven idle