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vacuum

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How to Replace a Cruise Control Vacuum Reservoir
The cruise control system has a failing vacuum reservoir if the cruise control does not hold speed or you hear a hissing noise coming from the car.
How to Replace a Vacuum Brake Booster
The vacuum brake booster generates extra force for car brakes. If your car is hard to stop or wants to shut off, replace your brake booster.
Symptoms of a Bad or Failing Vacuum Pump
Common signs include poor fuel efficiency, difficulty pressing the brake pedal, oil leaking under the engine, and the AC not working.
How Long Does a Brake Booster Vacuum Pump Last?
The hydraulic braking system on your car is very complicated. Without all of the various components of this braking system working together, it will be very hard for you to...
How Long Does a Vacuum Pump Last?
Your car’s engine is a very complex piece of machinery. In order for it to function properly, there are a number of different components that will have to work together. Among the...
How Long Does a Brake Booster Vacuum Sensor Last?
In order for a car to have the brake power that it needs, there will have to be a sufficient amount of vacuum power. The engine of a car produces...
Symptoms of a Bad or Failing Thermostatic Vacuum Sensor
Common signs include the Check Engine Light coming on, poor engine performance, and an overheating engine.
How Long Does a Thermostatic Vacuum Sensor Last?
Winter can make for tricky driving conditions - just starting up your vehicle can be a bit more of a chore. When the engine is cold, it takes a few minutes...
How Long Does an EGR Vacuum Modulator Last?
Not only does the EGR (exhaust gas recirculation) system in your vehicle cut down on emissions, but it also helps to make your engine run more efficiently. However, in order for...
How Long Does a Cruise Control Vacuum Reservoir Last?
The cruise control vacuum reservoir is an air bladder that stores a supply of spare air that is vacuum pressured for when the primary vacuum runs low. This part is...
Symptoms of a Bad or Failing Vacuum Booster
Common signs include a stiff brake pedal, intermittent power to the brakes, and a brake pedal that sinks all the way to the floor when applied.
How Long Does a Vacuum Booster Last?
Without a properly working braking system, it will be nearly impossible to avoid being in a wreck. Most people fail to realize just how important their braking system is until they are...
Symptoms of Bad or Failing Vacuum Hoses
Common signs include the Check Engine Light coming on, the engine not running smoothly, and the engine losing power or not starting.
Symptoms of a Bad or Failing Vacuum Brake Booster Check Valve
Common signs of a faulty vacuum brake booster check valve include the brake pedal being difficult to engage, feeling spongy, or not working at all.
How to Replace an Exhaust Gas Recirculation (EGR) Vacuum Modulator
The EGR vacuum modulator meters the EGR valve in some car systems. Some signs of a failing EGR vacuum modulator include stalling and a rough idle.
How to Inspect Car Vacuum Hoses
As you drive your car, your engine draws in massive amounts of air which it then mixes with gas and ignites it to keep the engine running. The vacuum created as a...
How to Replace a Brake Booster Vacuum Sensor
The brake booster vacuum pressure sensor is a vital part of power brake operation. A Check Engine Light or a hard brake pedal are signs of failure.
How to Replace a Cruise Control Vacuum Bleed Switch
Cruise control slows when the vacuum bleed switch activates. It fails if the cruise control deactivates automatically or will not hold the speed.
How to Replace a Coolant Vacuum Valve Switch
A vacuum line attaches to the vacuum switch in your car as part of the engine’s heating and cooling system. A faulty switch can break your heater.
How to Replace a Vacuum Hose
A vacuum hose is failing if the Check Engine Light comes on, the engine does not run smoothly, or the engine loses power and does not start.

Related questions

Question
What could be wrong with my engine?
The sound may be due to a vacuum leak and that would include the PCV and EGR systems. There are other possibilities but initially the latter possibilities would be considered first. To get this problem investigated and resolved, your best...
Question
2012 chevy cruze lt 1.4 valve cover vacuum leak. waiting on parts in the mail.
It is possible to temporarily seal air (vacuum leaks). Any method that best creates a seal can be used. In particular, RTV sealant which is flowable can be used to seal a non moving crack so long as the surface...
Question
Engine revving very high and very hard to brake
The pop you heard was probably a backfire through the intake. When that happened, it likely blew a vacuum hose off of the intake. Now the engine has a large air leak that is causing it to idle high and...
Question
I believe a vacuum leak, maybe head gasket.
Hi there. If your vehicle tends to stall out when all of the vacuum lines are hooked up, then there is an issue either with the air coming into the engine or the combustion is not good enough to keep...
Question
1997 GM TBI 5.7 : Idle too high
Hi there. Check for any vacuum leaks that the engine may have. Look for any vacuum hoses or ports that are not connected. Vacuum leaks on the engine will contribute to the engine having a higher idle. If the vacuum...
Question
Revs go up when idle and vibrates
Without knowing the engine size and vehicle having this problem I would have to say that you have an engine vacuum leak in an intake gasket or seal. You should have the computer scanned for any lean codes then have...
Question
hard pedal, no brake action or fluid with engine on or off.
If the brake system was working before and now the brake pedal is hard and the front calipers are not moving, then the brake booster has failed (which is the hissing sound that you are hearing) and there seems to...
Question
Car engine sounds like vacuum cleaner.
The issue sounds like the timing belt is put on 180 degrees off making the exhaust the open when trying to start and the intake open when trying to compression. This will cause a vacuum sucking sound as the vehicle...
Question
How to fix vacuum hose leaks
Toyota vends metric vacuum hose and it is best to buy vacuum hose from Toyota. Toyota sells the hose bulk and in various lengths. The only things to be mindful of are to make the correct connections (i.e., don't connect...
Question
Oil cap is under a vacuum.
The vacuum is due to the (PCV) Positive Crankcase Ventilation valve being plugged up. I recommend replacing the PCV valve and the issue will go away. When the PCV valve is plugged up, the engine crankcase cannot breathe and causes...
Question
Vehicle was sputtering and lost power. Gets spark, cranks but wont start
Hello. There are few things that I recommend you have a technician inspect. In order of probability your vehicle may have a bad mass air flow sensor, a bad crank position sensor, a bad throttle position sensor, or restricted fuel...
Question
Missing IAC valve vacuum line.
The IAC (Idle Air Control) valve is required to have a vacuum line on it to work the engine properly. The line from the carbon box filter is supposed to be hooked to it, but it may be damaged. Take...
Question
Short ram intake installation
Hi there. If the problem started after changing out the intake manifold on you engine and the car is new, then the issue is to be a vacuum leak on the engine. Check around the manifold for any loose bolts,...
Question
My 2005 Kia Sorento doesn't have the power to go down the road. It will start and run, but it won't go faster than 35 mph.
Check to see if any vacuum lines were disconnected when your engine was serviced. A vacuum leak can cause the engine to have a loss of power under a load. If all of the vacuum lines are good, then the...
Question
My truck won't start. I put a new fuel pump, cam shaft sensor, cleaned my crank sensor, and put a new battery in it. It will crank but not start.
Check the exhaust system for any leaks before the oxygen sensors. This can contribute to having more oxygen in the exhaust stream causing the sensors to register a false reading. If there is no leaks in the exhaust, then check...
Question
I have a 1997 dodge ram 1500. It is not getting up to speed and acts like it has no power.
Hi there. Check the fuel pressure on the fuel rail and see if there is at least 30 psi. If the fuel pressure is low, then either the fuel filter is plugged or the fuel pump is not producing enough...
Question
Full exhaust system is not hooked up.
Check to see what on your exhaust system is hooked up. If your catalytic converter is hooked up and the pipes are hooked to the engine with good gaskets, then as long as the sensors are working, there is nothing...
Question
My Camry is starting at 2000 rpm's.
Sounds like there is a vacuum leak that is causing the engine to rev up high. If there is no vacuum leak, then the Idle Air Control Valve could be stuck causing the engine idle to fluctuate on startup. I...
Question
Engine cuts out when breaking
Check the brake booster for any vacuum leaks. The brake booster check valve could be split, the brake booster supply vacuum hose could be loose or split, or the brake booster diaphragm could have a slight tear or a pin...
Question
Acceleration automatically.
Hi there. There is an issue with the engine having a vacuum leak and the may be cruise control is coming on to accelerate the engine. First check for any vacuum leaks on the engine. If the engine is running...

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