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No. The EGR valve (Exhaust Gas Recirculating) is part of the vehicle emission control system. It uses vacuum to open during engine deceleration allowing rich/unburnt exhaust gases to be recirculated back into the combustion cycle. Lack of fuel pressure is most likely caused by an inoperative/faulty fuel pump or plugged fuel filter. The pump is inside the fuel tank. The fuel filter is under the car near the fuel tank on the right hand side.
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What would cause the fuel system on your 3.1 cavalier not to hold pressure when not running?
The fuel pressure regulator is bad, one or more fuel injectors is leaking or the check valve in the fuel pump is faulty.
How do you relieve fuel pressure on 97 cavalier?
Make sure that the engine is completely cool so that fuel will not ignite on the motor or exhaust. On the fuel rail is a valve much like a tire valve stem. Press the valve with a screwdriver while holding a rag to avoid fuel spraying. After the fuel pressure is gone, dispose of the rag properly as to not cause a fire.
What would cause fuel pressure drop overnight on 2003 Chevy s10 4.3L MFI?
Could be a faulty check valve in the fuel pump, a leaky fuel injector poppet or a leaky fuel pressure regulator. My guess would be the fuel pressure regulator.
How do you relieve fuel pressure before changing fuel pressure regulator on 93 explorer?
On the fuel rail of the 93 explorer there is a pressure valve. With the battery disconnected, place a rag around the valve to catch any fuel. depress the valve until the fuel stops coming out.
How can you check the fuel pump pressure?
With a fuel pressure gauge connected to the Schrader valve on the fuel rail.
Where is the pressure test port on the fuel on 99 Chevy suburban?
under hood, on fuel rail which is connected to each fuel injector there should be a valve that looks like a tire valve. That is the shrader valve, test fuel pressure there.
What is the valve stem fitting for on the fuel rail of a2001 dodge ram pickup?
the "valve" stem fitting you're referring to is called a schraeder valve , and is for connecting a fuel pressure gauge to, as a means of checking your fuel pressure-typical fuel pressure should be about 35 psi.
How do you release fuel pressure on 2001 impala?
there should be a valve on the fuel rail on the engine that you release the pressure, it looks just like a tire valve.
What is the bleeder valve for on the fuel line of a fuel injected car?
you hook up a fuel pressure guage to it to check the fuel pressure
What would cause the loss of fuel pressure if your 1997 Chevy s-10 sits for a couple of days?
You could have a leaky fuel injector or a leaky fuel pressure regulator or a faulty check valve in the fuel pump. My guess would be the fuel pump is at fault.
1989 Chevy Celebrity wagon 2.8 engine starts hard when cold?
There are several possibilities that might cause hard starting. 1. Not enough fuel pressure. The fuel pressure should measure about 45 psi at the Schroeder valve on the fuel rail. If the pressure bleeds down then the fuel pump has to build up pressure before the fuel injectors will open. 2. A sticky or binding throttle position sensor might cause hard starting. 3. A faulty MAP sensor could possibly cause hard starting. 4. A stuck open egr valve can cause hard starting.
How do you discharge pressure from fuel lines from a 97 Chevy astro van?
Loosen the gas cap. Look for a Schroeder valve on the fuel rail and relieve pressure there. If there is no Schroeder valve, then there is no pressure relief. You must be prepared for the spray of fuel when you disconnect the fuel line.
