Best Automotive Replacement Emission Vacuum Valves in 2022

Last update: November 15, 2022

Are all vacuum check valves the same?

There are many types of vacuum check valves, but they all have the same purpose: to allow air to flow in one direction and prevent it from flowing in the other direction. The most common type of vacuum check valve is the diaphragm check valve, which has a flexible diaphragm that opens and closes to allow air to flow through.

Can a vacuum leak destroy an engine?

A vacuum leak can cause serious damage to an engine. If a leak is not fixed, it can cause the engine to overheat and seize up. The engine may also lose power and eventually fail.

How do you test a vacuum valve?

A vacuum valve is a device that controls the flow of a fluid or gas in an enclosed space by using a vacuum. A vacuum valve can be used to regulate the flow of a fluid or gas in a system, or it can be used to isolate a system from its surroundings. To test a vacuum valve, first make sure that the valve is closed. Then, open the valve and allow the vacuum to pull the fluid or gas through the valve. If the valve is working properly, the fluid or gas will flow smoothly through the valve and into the system. If the valve is

How much does it cost to replace a vacuum check valve?

If your vehicle has a vacuum check valve, it is there to make sure that the engine is getting the correct amount of vacuum. Over time, these valves can become worn out and need to be replaced. The cost of replacing a vacuum check valve will vary depending on the make and model of your vehicle, but it is typically a relatively inexpensive repair.


Dorman 911-601 Toyota Vacuum Switching Valve Review:


If you can get your hands on a VSV, there is a way to test it before you buy it. Provide electricity to the VSV by connecting a 9V battery's terminal to one electrical connector and its - terminal to the other. A functioning VSV should make a clicking noise. Also, always use jack stands instead of just a floor jack when working underneath your automobile. Utilizing a ramp with jack stands as a backup is preferable. Rarely do you emerge from an accident under your car having learned from your error. I'll get to the review now.I looked into the P0446 (EVAP) code that my 2000 Corolla LE was throwing and found that there was a slim chance it could be the gas cap. I thus bought a new to see if it fixed the problem. Oh no, that didn't work. I tracked it to a potential VSV after doing further investigation, particularly by the charcoal canister in the back. I wasn't sure if a $70-$80 OEM Toyota replacement would be a permanent remedy. I discovered this Dorman 911-601 to use in its place. It might cost up to $600, according to my technician at the shop; this would cover the charcoal canister as well as other components. I would gamble for a bit more than $20. Additionally, I had to take care of this because the vehicle wouldn't pass when the time came for emissions testing. Without the testing, I wouldn't have to deal with it.Do yourself a huge favor and check whether you can confidently reach and replace the VSV on your own vehicle before I continue with my experience. On some vehicles, the VSV's location makes replacement nearly hard.First of all, this component did not fit perfectly on my Corolla. One port is located next to the electrical connector, and the second port is located on the opposite side of the connector, as seen here on Amazon. I can see the VSV below my car, and both ports point away from the electrical connector. I can still make it work.Second, replacing this VSV is a straightforward DIY project on paper. Simply unhook the electrical connector, unplug the vacuum tubes from the ports, and unscrew the VSV's single screw. Replace the VSV and reconnect everything. There is nothing else. In actuality, it's among the trickiest replacements I've ever encountered. Even though I have little fingers, replacing the component required a lot of patience from me.As I previously stated, the VSV is located underneath the car, and several pipes around the charcoal canister are in the way of replacement. the VSV's mounting screw? On mine, forget about it; I had to pry and break the old VSV off because it was completely rusted. Safety goggles are a needed when beneath, or else any piece of rust or dirt could land in your eyes. Remembering the ports with the opposite faces, I replaced the old VSV after removing it and had to use a new hose. One hose couldn't have connected to the Dorman because it was too short. I used a Prestone FU0104 hose, which is available in 2 feet. Basically, it's a 1/4" rubber fuel line/emission hose "You can use any other hose that satisfies the requirements, such as 6.4mm internal diameter, and you can purchase it by the foot. I employed 12–14 ". Compared to the original hose that was there, it is thicker.I recently changed the VSV, and I also wrote this review. I'll update whether my code is fixed, but I won't adjust my rating because I'm gambling on the item and it's not the item's fault if my code reappears.EDIT 6/24/13: I just used my auto scanner to verify today, and all monitors are displaying "ok" readings. EVAP included. That is the one that the P0446 error code was related to. It takes a monitor a little while to detect "ok." Naturally, I'll keep an eye on it to see if the code remains off as I've already saw it turn back on with the original VSV before this change.If my review was helpful to you, kindly click YES; this will motivate me to keep writing and updating my reviews. If you have any questions, feel free to leave a comment; I'll be pleased to respond if I can.



9L14-9H465-BA 6L3Z-9H465-A 7L1Z-9H465-B NEW Vacuum solenoid valve Fit For FORD F-150 Lobo F-250 Expedition 2005-2008 Review:


Dodge informed us that the replacement would cost well over $300, thus we have been living with a poor window switch on the driver's side for well over 1.5 years. I bet that this one will resolve our problem, and sure enough, it does. The added bonus: turn on the lights! Why didn't we attempt repair earlier?



Dorman 911-850 Vacuum Switching Valve for Chrysler/Dodge/Mitsubishi Review:


On a 1997 Mitsubishi Eclipse Spyder GS-T, I used this to reset the CEL. It succeeded. Keep in mind that the wiring harness is not plug-and-play. You'll have to build your own converter wiring from scratch. Mini-pin connectors are used with this device. The average lifespan is unknown.



9L14-9H465-BA Vacuum Solenoid Valve 4WD Evaporative Emissions Solenoid Hub Locking Solenoid Fits for Ford Explorer Lobo F150 F250 Expedition Lincoln Navigator 5.4L 6L3Z-9H465-A Review:


replacement of an exact part. The item I received had the precise part number written on the side of it even though it wasn't a Ford part.Quick and simple installation! If your Raptor or F150's front hubs are making a grinding noise. The problem will be this. Make care you also replace the valve below. I followed every vacuum line until I was left with this and the valve. I replaced both, and my 2013 Raptor is running flawlessly now.There are a few nice videos showing the installation on a Gen 1 and Gen 2 Ford Raptor on YouTube. However, it is simple and just takes a few minutes!



Aisin VST-001 Bulk Vacuum Switch Valve - Green Review:


My 2004 Toyota Tacoma Pre-Runner, which has a 4-cylinder engine, received the Diagnostic Trouble Code (DTC) P0401 Exhaust Gas Recirculation Flow Insufficient Detected code on the Malfunction Indicator Light (MIL)/Check Engine Light (CEL). This component matched the OEM component exactly. The item was rather simple to remove and replace. Since the original valve is underneath the intake valve, removing the electrical connector from it is difficult. Next, take off the single philips head screw holding the valve to the mounting bracket. By paying attention to how the hoses are run and secured, I found it to be simpler to remove the valve in the direction of the firewall. The hoses on the replacement valve should be replaced, and the valve should be carefully installed back below the intake manifold, replacing the hoses in the clamps from which they were previously taken. Reattach the electrical connector after securing the valve in its mounting clamp with the previously removed philips head screw. If you take your time, you shouldn't need more than an hour to complete the task. The only challenging aspect of the endeavor is that there isn't much room to work with.After removing the old valve, I used a vacuum pump to check and test it, and it passed all functional and electrical inspections. According to the DTC troubleshooting guide, the CEL went out after the second engine cycle and hasn't come back. Guess what ;-)



Genuine Toyota 90910-12199 Vacuum Switch Valve Review:


About a week ago, my check engine light came on. When I went to Auto Zone, they pulled the P0446 problem number. I should swap out the EGR vacuum switching valve, it said. For a 2002 Camry, they recommended the Dorman part #911-606; however, if possible, I like to get genuine Toyota or Denso components. On Amazon, I found this item for about $50. When I got it, I unplugged the negative cable, took out the old part, and put the new one in. The installation was really easy; all I needed was a screwdriver to connect the valve to the air filter box's back. The check engine light came on as soon as I put everything back together and turned the key in the ignition.



JR Products 571-VAC-CHK-A Vacuum Breaker/Check Valve Review:


Its installation was simple and straightforward because it is an exact replacement for the original, which failed after 7 years and is the same brand, make, and model. I'm happy with my purchase because Amazon's price was less than half of what the RV parts store demanded.



Dorman 911-605 Toyota Avalon/Camry/ES3300/Solara Vacuum Switching Valve Review:


I required this component to repair my automobile. I drive a 2002 Toyota Solara V6 SLE. When the egr valve vacuum line was connected to the egr vsv, the car started dying within a minute or two and was generally getting bad mpg. By sucking on the vacuum line that is linked to it, you can quickly test the egr valve. When you take it out of your mouth, if there is a popping sound, the physical valve is functioning properly. Keep in mind that, contrary to what it is intended to do, this method does not truly assess the vacuum holding capacity. Hardware can be bought to check that.This vehicle's actual egr valve repair is either incredibly expensive or extremely challenging to do yourself. Additionally, studies have revealed that the egr vsv frequently fails and is frequently the root of emissions control system issues. Due to these factors, I decided to simply trust that the egr valve itself was functional and purchase a new vsv. After I changed it, I saw that the check engine light was finally off a few minutes into my test drive. It has been off for over a week at this point.With regard to this component of equipment, you will experience less mpg and greater engine temperatures even though the car will continue to function. Obviously, you won't pass the emissions test either. The egr vsv is notoriously difficult to replace in many automobiles. Fortunately, it can be removed quickly and easily on this Toyota model because it is located directly underneath the engine cover.I'm really pleased with my purchase and am relieved that genuine replacement parts can be located without visiting the dealer.



Dorman 911-602 Vacuum Switching Valve for Lexus/Toyota Review:


For more than 4 years, a 1998 Camry had a P0446 code. I paid half as much for this through Amazon Warehouse Deals than I would have otherwise. The reason for the Warehouse bargain is simply that the outer box was dented or damaged, even though the product inside is typically intact. To view the WH bargain, look under "Used."Anyway, the replacement process took roughly 30 minutes. The issues were: 1. No amount of straining could free the one rubber pipe that was fully stuck close to the connector; eventually, the tube had to be cut in half to release itself. To make the tube fit properly the following time, I had to use pliers to cleanly cut it.2. The old one has a rusted screw that is tough to remove. A good PB Blaster soak and some rolling back and forth on the older VSV soon "broke" it, leaving one piece still screwed to the canister mount but essentially making room for the new one.It only took a few minutes to attach the tubes and clip in the electrical hookup once the space was available. I used two zip ties to attach the VSV to the plate because there was nowhere to "screw" it in. Of course, it also has three rubber tubes holding it and an electrical connector, so it should be fine.started the car, used an OBDII scanner to clear the codes, and then drove it about 50 miles before putting it in for inspection. It passed!


Is a vacuum leak expensive to fix?

A vacuum leak can be expensive to fix depending on the severity of the leak and the location. If the leak is small, it may only require a sealant or tape to repair. However, if the leak is large or in a difficult to reach location, it may require replacement parts or even a new vacuum.

Is it OK to drive with a vacuum leak?

A vacuum leak is a hole in your car's engine where air is escaping. This can cause your engine to run less efficiently and can even cause it to stall. If you have a vacuum leak, you should take your car to a mechanic to have it fixed.

Is it worth it to repair a vacuum?

A vacuum is a key appliance in any home, and like any appliance, it will eventually need repairs. The question then becomes, is it worth it to repair a vacuum, or should you just buy a new one? There are a few things to consider when making this decision. The first is the cost of the repair. If it is a simple repair, such as replacing a belt or a roller, it is probably worth it. However, if the repair is more costly, such as replacing the motor, it might be better to just buy a new vacuum. The

What are the 4 types of valves?

There are four types of valves: ball valves, butterfly valves, gate valves, and globe valves. Ball valves are used for on/off applications and have a ball with a hole in the center that controls the flow of water. Butterfly valves have a disc that opens and closes to control the flow of water. Gate valves are used to start or stop the flow of water and have a gate that raises or lowers to control the flow of water. Globe valves are used to control the flow of water and have a disc that opens or closes to control the flow of water.

What are the symptoms of a car vacuum leak?

A car vacuum leak can cause a number of symptoms, including a decrease in fuel economy, a decrease in engine power, and an increase in emissions. A vacuum leak can also cause the engine to run lean, which can lead to engine damage.

What can I spray my engine to find a vacuum leak?

If your engine is running rough, it could be due to a vacuum leak. To find the leak, you can spray the engine with a mixture of water and soap. The leak will show up as a stream of bubbles.