Sentences with phrase «engine vacuum»
"Engine vacuum" refers to the suction created by the engine of a vehicle. It is a crucial force that helps with various functions like braking, operating air conditioning, and components like power steering. Full definition
The brake booster uses engine vacuum for braking assist.
yourmechanic.com
Obviously that isn't optimal for engine vacuum, but you get the idea.
When the air conditioning cycles off, the load on the engine is decreased and the amount of engine vacuum is increased.
A manual cable, a thermostat type system, or even engine vacuum can control them.
The AC has a vacuum reservoir that is designed to hold a vacuum to the AC blend doors during acceleration, or low engine vacuum conditions.
The vacuum hose to the valve cover is not to be under engine vacuum but rather under throttle vacuum.
Any change in engine vacuum (load) can affect the amount of «assist,» or boost, provided by the brake booster.
With regard to vacuum leaks, on a fuel injected engine a vacuum leak will cause a high engine idle as the engine's oxygen sensor detect the extra oxygen entering the engine through the vacuum leak.
You can get an indirect indication of incorrect valve timing by measuring engine vacuum...
º Checking batter voltage º Checking dynamic compression º Checking engine vacuum º Scanning for fault codes
Like you mention, getting on a flat surface (with wheel chocks of somesort), and not using the brake, to avoid changing engine vacuum abruptly when it's in this delicate state.
Boost gauges can read boost level, and many read engine vacuum.
Icon's latest ride also receives Brembo Sport Brakes that are hydro - boosted with power - steering pressure instead of with engine vacuum.
If you attach a vacuum gauge what's engine vacuum doing?
The starting point to evaluate engine vacuum is the intake manifold.
The Blip system features a patented engine vacuum powered and self regulated throttle blipper with a graduated lockable blip level adjustment.
When the center carburetor was opened to 60 ° or more engine vacuum drawn from the windshield wiper pump would simultaneously open the front and rear carburetors.
The most common way is through engine vacuum.
The engine's positive crankcase ventilation system relies on engine vacuum to function properly.
Due to engine on this BMW having variable valve lift engine vacuum not always present, a vacuum pump is installed to supply sufficient vacuum to run auxiliary systems such as the brake booster.
In December 2014, BMW North America released a voluntary recall («Customer Care Package») relating to issues with timing chain stretch, fuel injectors, mass air flow sensors, crankcase vent lines, battery, engine vacuum pump, low pressure fuel sensor and revising the oil service interval.
It works by using engine vacuum to pull a diaphragm.
This change in brake pedal height is caused by an increase in engine vacuum.
Locate the vacuum source line and measure engine vacuum.
If the engine vacuum is not correct the it's possible the ECU misinterprets the MAP and calculates the load incorrectly.
I'd also be interested in what ignition timing is doing and engine vacuum.
The brake booster runs off engine vacuum, so a vacuum leak can also affect the amount of force you need to exert on the brakes to stop.
The ability to monitor both boost and engine vacuum is vital on a performance car.
If you have a NVG231 there should be engine vacuum (roughly 20inHG) at the shift motor.
In a vacuum control a diaphragm keeps the secondary closed until the engine vacuum is low.
Brakes rely on an electric motor rather than engine vacuum to generate hydraulic pressure for better pedal response, feel, and stopping power.
Do you know if your IAC is actuated by engine vacuum?
I'd suggest checking engine vacuum then maybe doing a leak down test if engine vacuum appears abnormal.
Remember that engine vacuum is just air pressure lower than atmospheric pressure.
To establish the current driving conditions, the system monitors pedal position, throttle position, vehicle speed, engine speed, calculated road slope and engine vacuum.
The EPA started to require that leaking gasoline fumes be reduced to virtually zero, and the EVAP system on every current car is controlled largely by — you guessed it — engine vacuum.
The booster uses engine vacuum to assist the brake pedal so when it fails, you can get a vacuum leak,...
When the car is idling, the engine vacuum opens a valve...
The rough idle may be due to the fuel injection system being dirty or having an engine vacuum leak causing a lean condition.
You may need to have additional diagnosis done by a mechanic like one from YourMechanic to see if the ignition timing is correct and there is no engine vacuum leaks in the intake or vacuum lines.
The pressure release you hear is engine vacuum and may be normal considering, the brake pedal travels to the floor.
The brake booster operates from the engine vacuum; if the engine vacuum is leaking somewhere, then the power assist will not work, and your engine will rev higher to attempt to stay running.
You should have brake boost for a few moments after the engine vacuum drops off.
When air pressure is affected, engine vacuum is also affected.
You may have an engine vacuum leak that is only there when cold and seals up as engine warms.
The brake booster operates from the engine vacuum; if the engine vacuum is leaking somewhere, then the power assist will not work, and your engine will...