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Need to know where pvc valve and egr valve are on 2000 4.3 vortec

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The PCV is on the crankcase. The EGR will be near the intake.

Posted on May 24, 2011


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Where is the EGR valve located on a 1995 Jimmy with 6 cylinder vortec?

it is under intake hose its a round cyl about 2.5 to 3in round two bolts 10 mmm 1 electric plug look up one on ebay so you know what it looks like good luck

Sep 01, 2012 | 1995 GMC Jimmy

1 Answer

5.3 vortec using oil not leaking

How dirty is your air filter? Sometimes a dirty air filter will make it pull up oil if it can't pull in air. The other thing to check would be the PVC valve. PVC valves are cheap and I would just replace it.

Jan 05, 2012 | Chevrolet Silverado Cars & Trucks

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1998 Altima GXE has a code of P1491. It was

Code P1491 is not the PVC Valve.It is the Vacuum Cut Valve Bypass Valve.
Which is located above and away from the egr canister under the driver side rear bumper it is round and have about 3 hoses connected to it. if it is from a check engine light that says look at vacume cut valve check the egr canisters purge valve some times they stick and throw the wrong code

Sep 01, 2009 | 1998 Nissan Altima

1 Answer

Rough idle blazer 2000

change air filter.clean throttle plates.remove throttle body remove all electrical parts also all plastics and rubber parts.clean throttle body with gum out throttle body cleaner.dry off throttle body.replace gasket.scan it to check to see if egr valve leaking.also check all vacuum hoses.and pvc valve.

Jul 19, 2009 | 2000 Chevrolet Blazer

2 Answers

Replacing pcv valve on 2002 Chevy Silverado 2500 HD Vortec 6 Liter engine

driver side valve cover in the back of the cover. if it even has one, sometimes the cover has been replaced with a later style that uses a baffle instead of a pcv

Jul 01, 2009 | 2002 Chevrolet Silverado 2500HD

1 Answer

85 volvo dl fuel evaporative control functional (failed) @ smog check

replace the pvc valve and have the egr valve replace.make sure the vacuum hoses connect to egr valve and pvc replace.change air filter.all those things will cause high emission if not working properly.cause you to fail smog test.

May 31, 2009 | 1985 Volvo DL

3 Answers

I have a chevy blazer 94 S10 still quit on the road.

How is it running before it quits onyou. This could be the culprit of an egr valve. How many miles on thevehicle. The egr seems to die on a certain mileage pattern. Also youcould start by cleaning the egr valve before replacing it. This couldvery well help the situation, but this is just a guess. Hope thishelps!!

Apr 30, 2009 | 1994 Chevrolet S-10 Blazer

1 Answer

Mazda 626 2000 vibrates when idling and when I put the a/c on why?

Hello, It sounds like you may have a small vaccumn leak at idle, that is enhanced with the extra load of the A/C. There are a lot of other reasons that can cause this problem, but most of the time it is that. A stuck PVC valve can cause the same thing because it is a vaccumn leak in the engine when it gets stuck open. Another is the EGR valve also being stuck open and/or dirty. If you are familure with engine operations they you can check the above problems out fairily easily yourself. On the vaccumn lines you can look at the connections and see if the lines have developed cracks along the sides where they are pushed over the connection pipes. The PVC valve can be cleaned or replaced if plugged up or stuck. The EGR valve can be checked with a vaccumn guage installed on the engine and the with a piece of hose attached to the EGR valve, you apply vaccumn to the hose and the engine should start running worse and shaking with the vaccumn leak as the valve opens. They usually get plugged up with carbon and the start leaking and finally exceeds the ability for the ECM to correct the leak. These are just a few of the common problems that can cause your type of shaking problem. I am also assuming you have kept the maintenance up on the vehicle, i.e.: tuned up, oil changed, etc. or some of the problem could be coming from them also. Good Luck, RAC

Apr 18, 2009 | 2000 Mazda 626

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