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Despite the rather lengthy name the EGR-VSV ( exhaust gas recirculation vacuum switching valve ) does little more than allow vacuum to flow through the system depending on engine coolant temperature. An element within the switch reacts to temperature changes, opening and closing the valve at a predetermined level.
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What does a vacuum switching valve do?
The Vacuum switching valve controls the EGR Valve.
What is the function of the 98 Toyota Camry egr vacuum modulator?
EGR stands for Exhaust Gas Recirculation. The purpose of the EGR system is to lower the amount of oxides of nitrogen the engine produces. The parts of the system are the vacuum actuated EGR control valve, the vacuum switching valve, and the EGR vacuum modulator assembly.
How do you replace Vacuum Switching Valve on 98 Camry?
Its under the EGR on the block ya. follow a hose from egr to vsv from underside of car
What could make the egr code come on if the egr works fine on a 2000 Toyota RAV4?
the vacuum switching valve that run the valve are a common problem they are intermittent stuck closed so do not operate the valve
How does the vacuum switching valve work?
how does the 83 tercel thermostatic vacuum switching valve work
Where is the EGR vacuum switching valve on 2001 Camry located?
Switching valve for EGR (4 cylinder model) is located on the side of the engine facing the firewall it's next to the knock sensor. It's hard to access, if you want to replace you need to jack up your car and do that from underneath the car.
What is an EGR vacuum solenoid on a 1991 4.3 s10 and what it does?
The EGR (Exhaust Gas Recirculation) valve opens when vacuum is applied. The EGR vacuum solenoid opens and closes the vacuum supply to the EGR valve when it is commanded to do so by the ECM (Engine Control Module).
How do you replace the EGR valve in a 1996 Lexus ES300 to resolve 'insufficient flow' and 'check engine' message?
P0401 "egr insufficient flow" can indicate many things, including: 1-vacuum line plugged or leaking 2-pipe from exhaust to egr valve plugged 3-pipe to vacuum modulator valve from egr valve plugged 4-passages at egr are plugged 5-bad egr valve 6-bad EGR VACUUM MODULATOR VALVE I tried cleaning egr modulator valve, (beside/above egr)removed and tested egr vacuum & movement, inspected and cleaned all vacuum lines openings and pipes. All above did not work. I replaced the egr vacuum modulator valve. Light went out without a reset in about 30 miles of driving. Not sure if this valve can be cleaned. Retails for $69.US
How do i disable the ERG valve?
If your EGR valve is vacuum operated, simply remove the vacuum hose from the valve.
What is the vacuum sensor called a bvsv on a Toyota 3y motor it is located vertically in the front of the head to the right of the radiator inlet and has 2 vacuum fittings?
It is a bimetallic vacuum switching valve. it controls the EGR system.
How do you know if your erg valve or erg vacuum modulator valve needs replacing?
It's almost impossible to tell just from how engine is working. Unless you have hesitation, car lacks power and efficiency is low. And of course if you have EGR error code(s). In order to test EGR you need to have a small vacuum hand pump. Then you need to apply vacuum to the EGR system and see how it responses. Also, sometime EGR valve just needs to be cleaned. For the you need to remove the valve and check on presence of carbon deposits. Also if the valve itself cannot be moved freely, it might have to be replaced. The hoses around EGR system have to be checked on cracks, and replaced if cracks are present. EGR vacuum switching valve usually does not break. But EGR valve get very dirty time to time and has to be cleaned or replaced.
Why No vacuum to egr valve 1995 s-10 2.2?
There won't be any vacuum to the egr while idling. Engine must be warmed up and under acceleration or cruising before vacuum opens egr valve.
