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vacuum

Related articles

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
Went in for an oil change and came out with a non working car.
Hi there. First check the ECM (computer) for any codes that could be store as the check engine light came on. Before blaming any location for the vehicle's running condition, check to see what codes are stored to have a...
Question
1998 dodge viper gts letting of throttle rpm hang 2100 for about 10 to 15 seconds then drop to 700 where it should be.
Hi there. Check the engine for any vacuum leaks. Check all of the vacuum lines to the engine and the brake booster. If there is no vacuum leak, then check the idle air control valve (IAC) and see if it's...
Question
Toyota cynos is sputtering and stalls out.
Hi there. There could be a vacuum leak on the engine or to the brake booster causing the engine to run rough and then rev up and down. If all of the vacuum lines are good with no crack, breaks,...
Question
Help with my truck's rpm's being too low and won't stay running.
Hi there. It seems that there is a vacuum leak on your engine. Check all of the vacuum lines and the vacuum brake booster for any cracks or breaks on the lines and hoses. Replace any hoses or lines that...
Question
Ac vents not blowing
If your system is vacuum operated you should see hard plastic black colored lines and there should be a visible line through the firewall. If no such lines are visible, your system is electronically controlled. If vacuum operated, you can...
Question
After replacing the power steering pump there was a low idle, idle screw is all out, running rich, and idle speed doesn't change.
Hi there. The engine has a vacuum leak and is causing the engine to stumble down on the idle. Check all of the vacuum hoses and the brake booster for any leaks. The engine is rich for it's not burning...
Question
The check engine light
The two codes you are getting P0171 and P0174 are indicators that both sides of your engine is running lean. This means you have unmetered air getting into the engine that the mass air flow sensor does not see or...
Question
Engine Light On - System Too Lean.
Hi there. Check the mass air flow sensor (MAF) and see if it got unplugged. When the oil change was done, most likely the air filter was checked and the MAF sensor was disturbed. Also, check all of the vacuum...
Question
Rough Starts & Idle
The fuel pump code for the secondary fuel circuit fault may be the fuel pump module on the cross member under the truck. The module can go bad and cause no fuel pump operation intermittently. The engine vacuum line from...
Question
4Runner has no power in the engine.
Check the engine for a vacuum leak and see if the valve on the brake booster is leaking. Also check the EGR (Exhaust Gas Recirculation) is stuck on all the time. A vacuum leak or the EGR being stuck on...
Question
Can brake problem cause engine problem? 2006 VW Jetta
Hi there - the brake booster on your Jetta uses an engine-driven vacuum pump - rather than vacuum from the engine intake system and a vacuum booster cylinder as many cars have historically used. It sounds like your mechanic is...
Question
Dont have vacuum on any of the vacuum system
The line to the brake booster should be disconnected to see if it is getting any vacuum from the engine when it is running. If it is not then remove the check valve in the line to see it it...
Question
Engine hunts/stalls at idle.
Hi there. The issue seems to be a vacuum leak on the engine. Get a stethoscope that is made for automotive vehicles and listen for a hissing noise around the intake gasket or the intake hosing to the throttle valve....
Question
I have a 2002 lancer oz rally. It starts right up just fine but after about 10 seconds it shuts off.
Hi there. There could be a vacuum leak, the timing could have jumped, or the Mass Air Flow sensor could be dirty or have failed causing the engine to stall out after 10 seconds of operation. Billing question was sent...
Question
Have a South African model Golf 3 1.8 need a carburetor vacuum diagram 1996 VW Golf CSX
Hi there - best bet is a VW factory manual. If that is not available, internet searches may prove helpful. Try this link (w/antivirus) for a diagram of the vacuum lines for your model - http://www.cyanic.co.uk/vw.jpg
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...

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