It is usually it is Intake Manifold Vaccum.
vacuum pump in a diesel, is a pump installed to create vacuum to assist in opreation of brakes in pickups tha have diesel engines, the brakes are same as any other pickup and use vacuum created by the ngine to operate. a diesel engine does not create vacuum, as a gasoline engine does. that is why there is a vacuum pump added to a small diesel engine on f250 the pump is belt driven, is on the driver side of engine, under the a/c compressor.
You must have a diesel. The vacuum pump is what gives you POWER BRAKES and on the newer engines it also makes the power steering work. Only a gas engine makes vacuum. A diesel engine does not make vacuum, so they install a vacuum pump.
Diesel engines do not have enough vacuum themselves
Diesel engines don't have vacuum because they don't have a throttle plate.
Brake boosters are found on car braking systems, to help the brakes to stop the car. They work on the disc brakes, using a vacuum supply to add to the hydraulic braking system. On petrol engines the engine may provide the vacuum, on diesel engines there needs to be a separate pump.
Because a diesel engine does not create vacuum and the vacuum pump is necessary to operate things like the vacuum assist brakes and cruise control.
check vacuum pump.
The engine does not produce enough vacuum to be usable.
no a diesel does not produce vaacuum when running. but vehicles that require vacuum for the brakes have a vaccuum pump attached to the engine to supply the needed vaccuum
As a diesel engine does not have a throttle valve in the air intake, no useable depression is created in the intake manifold. That is why diesel engines are fitted with vacuum pumps to operate the brake servo.
diesel's dont produce enough
Type your answer here... could be the vacuum pump. Diesel engines do not create vacuum, so they have a external pump. on my 96 it is on the drivers side (one of the accessories on the serpentine belt). I've replaced it twice in 240,000 mi. you can take the hose off it, start the engine, and see if it creating vacuum, also if the pulley is wobbely,its shot.