Question about 1998 Oldsmobile Silhouette

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Need to change PCV valve on Oldsmobiel Silhouettee...where the heck is it?

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  • oaktreewesti May 29, 2009

    Wow, Thanks so Much! I would have never found it on my own. Bonnie Sue

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1 Answer

Honda crx with auto transmission idles roughly in drive or reverse. AC on makes it worse.what can cause this?


Idle Speech There are a lot of things that can contribute to an idle issue on your Honda. In fact, in the end it may still be there to some degree because of the nature of a 4 cylinder engine. 4 cylinder engines fire every 180? of crank shaft rotation. Because of this, the crank spends a LOT of time in rotation before the next power stroke. This creates a 'choppy' power delivery that may be most noticeable at idle. So if you have a rough idle with your 4 cylinder Honda, this might be a contributing factor to your rough idle.
The first step I take to solve a rough idle issue is to start with a good tune up. Use NGK or Nippon Denso plugs only in your Honda. Don't change the wires if they're OE (Original Equipment). Honda wires last just about forever so if you still have them on your engine, leave them be unless they show signs of external damage. If you feel you need to change the ignition wires and you want to save a couple of bucks, you might consider NGK wires as they are very good and less expensive than OE. They also come in a snappy blue color! A quality cap and rotor should also be used. I often go with Beck Arnley if I want to save a couple of bucks. Once again, OE is best for these parts. Honda's are VERY picky about the parts you use on their ignition systems. You'd be surprised at the difference between OE parts and aftermarket parts when it comes to Honda ignition systems. Trust me, I've seen plenty of issues here which is why I mention it. I've solved more than one idle issue just with a basic tune up using Honda parts. Lastly, a new air filter is a good idea to add to your list of tune up parts....heck the oil. You'd be amazed at how often I find low oil in an engine. If your Honda is low on oil the engine will have to work harder and possibly run rough as a result. I think it's also important to note here that you need to use the proper viscosity when putting oil in your Honda engine. DO NOT stray from the factory recommendations here. You may think it's a good idea to put thicker oil in your Honda engine, but the truth is that if you do that you can actually starve the top end by doing so. During start up, your engine is almost dry of oil. If you use thicker oil it will take longer for the oil to reach the top end of the engine. Because of this, the cam and valve train do not get oil for some time during start up. When this happens, the parts wear faster and eventually cause things like rough idles.
Don't change the PCV valve unless it's broken or aftermarket. If you see an aftermarket PCV valve, exchange it for an OE valve. Believe it or not, I've seen idle issues caused by aftermarket PCV valves on Honda's. The OE PCV valves last just about forever so you can easily justify the expense. I will admit however that the OE valves sometimes come apart internally and cause idle problems. If that's the case, it creates a large vacuum leak. When this happens, it effects the idle as well as fuel economy. Usually if the PCV valve fails in this manner, you'll experience a 'high' or 'hunting' idle. An easy way to find one of these faulty PCV valves is to pinch off the supply line to the PCV valve with a pair of pliers while the engine is at idle. If the idle smoothes out when you do this, replace the PCV valve with an OE unit.

Sep 28, 2016 | Honda Cars & Trucks

1 Answer

PVC Replacement


Sorry Darryl I am not conversant with PVC connected to cars. Do you perhaps mean PCV?
Positive crankcase ventilation is sometimes controlled by a valve which should be checked, cleaned or replaced as required during routine maintenance.

The PCV valve is often found screwed into the engine valve cover and is part of the engine breather system which vents foul crankcase emissions either into the air cleaner or into the inlet manifold.

I hope this helps.

Jan 14, 2015 | Cars & Trucks

1 Answer

Changing pcv valve in 97 chevy lumina


PCV VALVE LOCATED IN THE FRONT VALVE COVER.JUST PULL PCV VALVE OUT VALVE COVER. THEN YOU PULL PCV OUT OF THE END OF HOSE THEN INSTALL THE NEW ONE. FOR THE 3.8 ENGINE REMOVE THE TOP FUEL INJECTOR COVER.DISCONNECT THE ELECTRICAL CONNECTOR FROM MAP SENSOR AND UNCLIP THE MAP SENSOR FROM THE PCV VALVE ACCESS COVER AND ROTATE IT COUNTERCLOCKWISE TO REMOVE IT.TO REPLACE THE VALVE PULL THE PCV AND O RING ASSEMBLY FROM THE INTAKE MANIFOLD NOTING ITS INSTALLED POSITION AND DIRECTION. MAKE SURE WHEN YOU BUY NEW PCV VALVE TAKE OLD PCV VALVE WITH YOU SO YOU WILL GET THE RIGHT ONE.THAT WILL SAVE YOU TIME AND FUEL.

Dec 26, 2010 | 1997 Chevrolet Lumina

1 Answer

How do you change the pvc valve


Not sure on your engine so heres both types. :-) Hope it helps. Cobra
Positive Crankcase Ventilation (PCV) Valve — 3.0L (2V) Removal and Installation
  1. Disconnect the positive crankcase ventilation (PCV) valve tube quick-connect from the PCV valve.
e8e1fc3.jpg
CAUTION: A new PCV valve must be installed if removed from the cam cover. Damage will occur to the locking mechanism on the PCV valve.
Remove the PCV valve.
  • Disconnect the PCV valve electrical connector.
  • Rotate to release and remove the PCV valve.
cb7856a.jpg


Positive Crankcase Ventilation (PCV) Valve — 3.0L (4V) Removal and Installation
  1. Disconnect the positive crankcase ventilation (PCV) valve tube from the PCV valve
0f6f63a.jpg

  • CAUTION: A new PCV valve must be installed if removed from the cam cover. Damage will occur to the locking mechanism on the PCV valve.
    Rotate to release and remove the PCV valve.

  • 26db756.jpg

  • Jun 13, 2010 | 2005 Ford Taurus

    1 Answer

    I have a 1989 buick lesabre 3.8 and want to change


    Remove PCV valve from rocker cover. Run engine at i
    dle. Place thumb over open end of PCV valve to
    check for vacuum. If there is no vacuum at valve, c
    heck for obstruction in manifold port, hoses or PCV
    valve. Repair or replace as necessary.

    Turn engine off. Remove PCV valve. Shake valve and
    listen for rattle of check valve inside. If a clear
    rattle is not heard, replace PCV valve.

    Visually inspect valve for varnish or deposits whic
    h may make PCV valve operation sticky, restricted o
    r
    cause incomplete seating of valve. Replace if neces
    sary. An engine must be sealed for the PCV system t
    o
    function as designed. If leakage, sludging or dilut
    ion of oil is noted AND the PCV system is functioni
    ng
    properly, check engine for cause and repair as requ
    ired to insure PCV system will continue to function
    properly. An engine operating without any crankcase
    ventilation can be damaged so it is important to
    replace PCV valve and air cleaner breather at regul
    ar intervals (at least every 30,000 miles). Check a
    ll hoses
    and clamps for failure or deterioration.

    Mar 28, 2010 | 1989 Buick LeSabre

    2 Answers

    How difficult is it to change the PCV valve. 2004


    PCV is an acronym for positive crankcase ventilation.
    The PCV Valve is a very common replacement item on many engines today. It's called the PCV valve for short but it stands for Positive Crankcase Ventilation. When your engine spins it many times collects pressure in the crankcase area, and it has to escape to relieve pressure on the motors bearings and seals. The PCV valve and PCV system is typically located near the intake manifold, and many times comes right off of the valve cover. It is very simple to replace the PCV valve, and you can do so by simply unscrewing it, and screwing in the new valve. We recommend using a little bit of teflon tape or paste to make sure you do not get any oil leaks.
    Example (see picture below): 2,4 ltr. Audi V6 engine (BDV, AMM)
    b0e80b6.png It's not difficult to replace PCV valve!

    Sep 24, 2009 | 2004 Audi A4

    1 Answer

    PCV VALVE REPLACEMENT


    The pcv valve is usually located on one of the valve covers look for the larger vacuum hose coming from the intake manifold and follow it you should find it that way. changing it is a matter of sometimes using a pair of pliers to remove a small clamp then rotate back and forth the pcv valve while holding the hose and pulling it away and off.

    Jul 02, 2009 | 2003 Chevrolet Malibu

    5 Answers

    How do I remove the pcv valve from a 3.8 liter engine in a 2005 dodge grand caravan? I cannot pull it out.


    1. BUY THE NEW PCV VALVE FROM THE DEALER. part #4648973AC (I paid $9.95 in the Detroit area). 2. PCV valve is located on top of 'rear' valve cover. There is a black rubber pipe connecting the PCV to the upper intake manifold. The rubber pipe is like an inverted 'U' shape. 3. To remove the rubber pipe, you will need to squeeze the band clamps. Remove the upper end first. You will then be able to rotate the lower end clockwise, if necessary, to get enough clearance to use pliers to squeeze the band clamp. Remove the pipe. 4. You should be able to see the small chrome pipe on the end of the PCV valve. However, the PCV valve is completely surrounded by a plastic collar/shroud, part of the plastic valve cover. So, the only part of the PCV that is accessible is the small chrome pipe. 5. THIS IS WHY YOU NEED TO BY THE NEW PART FIRST. I needed to clamp onto the end of the PCV pipe with VISE-GRIPS. This will crush the end of the pipe. You will hold the vise grips in a horizontal fashion, towards your right, in your right hand. 6. Rocking the pipe, while carefully levering the vise grips on top of the plastic collar, you will walk the PCV valve up, and out. BE PATIENT. You do not want to crack the valve cover! 7. The rubber grommet should come out with the PCV metal valve. If not, you will need to pull it out (needle nose pliers?). 8. Install the new PCV valve. I used a film of white lithium spray to help the insertion. Note, there is a groove molded into the rubber grommet that must snap into place. I used a 5/8" deepwell socket as a 'pusher', to ease the PCV valve into place (just push, do not hammer). You should be able to feel it positively snap into place inside the plastic collar, otherwise it is not properly installed and will not seal. If properly installed, you will not be able to pull it out by hand. 9. Install the PCV rubber pipe. Slide the clamps towards the middle of the pipe, fit the pipe over PCVvalve. Be sure it is seated all the way to the bottom of the plastic collar. Squeeze the clamp and work down to the bottom of the pipe, then release. Repeat for the upper end of the pipe and spring clamp. 10. Have a cold one. You earned it.

    Jun 27, 2009 | 2005 Dodge Grand Caravan

    1 Answer

    Pcv valve


    The valve is inside the breather tube itself. sebring1962@yahoo.com

    Nov 16, 2008 | 2001 Chevrolet Corvette

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