Max Vacuum -5Kpa refers to the maximum vacuum level that a device, such as a vacuum cleaner or pump, can achieve, measured in kilopascals (Kpa). A level of -5 Kpa indicates that the device can create a vacuum that is 5 kilopascals lower than atmospheric pressure. This measurement is significant for understanding the suction power and efficiency of the vacuum device in applications like cleaning or industrial processes.
1 month max.
When making any changes to a car, it is important to have a diagram to help. A 1987 Mitsubishi Mighty Max wiring and vacuum hose diagram can be found in its maintenance manual.
Speed of light is max. in vaccum and slower in air.
because the voltage drop.
run motor and set A/C on max, blower on full, pull a vacuum on the system and recharge with R12a 2.9Lbs
The air selector valve (MAX AIR-off- to defrost) is a vacuum switch that runs vacuum motors in the air ducts. If the switch fails or if the vacuum supply from the engine fails, the selector function will fail. The default mode with no vacuum is flow to air conditioning vents. The vacuum hoses resemble a wire and from the engine is usually red and black
Check for vacuum leak--either under dash or in engine compartment Check for bad vacuum motors under dash Defrost is the default position for this system There is a vacuum resovoir located behind your battery , it is for this condition. When you accel your engine doesn't produce vacuum due to the throttle plate being open so a resovoir is there to hold a vacuum reserve so that when there is low vacuum produced by the engine there will be reserve to hold the vacuum motor applied preventing the air from changing direction in your dash. When there is no vacuum the direction is at the defrost vents if you have a broken hose or no vacuum your ac would blow out the defrost all the time But since it happens when you accel it sounds like your vacuum resovoir is cracked thus not allowing it to hold a vacuum
Actually, it should be don e with a vacuum gauge, to maximum vaccuum. Without one, adjust the idle mixture to max., idle.
Check for vacuum leak either in engine compartment or under dashCheck vacuum actuators )(get a hand operated vacuum pump to check motors and actuators)Check selector switch
Bad blower motor? Plugged air duct? Bad selector switch? (air being re-directed) Bad vacuum acutated motor under dash? Vacuum leak under hood or under dash?
Because it has a vacuum.
To check the EGR valve on a 1991 Mitsubishi Mighty Max, first, locate the valve, typically found on the intake manifold. Remove the vacuum hose connected to the valve and inspect it for any cracks or blockages. Then, with the engine running, manually apply vacuum to the EGR valve to see if it opens; you should hear a change in engine sound. If the valve does not open or shows signs of carbon buildup, it may need cleaning or replacement.