Changing PVC valve for 1990 Toyota Tercel DX

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  #1  
Old 10-28-07, 08:51 PM
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Smile Changing PVC valve for 1990 Toyota Tercel DX

Hello;

I have looked at my factory repair manual for changing a PVC valve, but all it indicates is "replace if necessary".

It does not give me any step by step instructions on how to go about it.

Could anyone familiar with changing a PVC valve on a 1990 Toyota Tercel DX please let me how it's done?

Many thanks for your help,

Bobby Orr
 
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  #2  
Old 11-14-07, 01:35 PM
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While I haven't done one on that truck I have replaced PVC valves.

The PVC valve itself sits in a hole on the valve cover. A hose (usually about 1.5' long) connects the PVC valve to a spot on your air intake. Pull the hose from the PVC valve, remove the PVC valve from your Valve cover and place the new one in its place. Connect the hose to the new PVC valve and your done.

If you pull the hose and don't see the PVC valve go to the other cover and check for it there. I believe each valve cover has a hose in it. My PVC valve always seems to be on the same side as my oil filler.
 
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Old 11-15-07, 09:38 AM
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The only thing you have to watch for is over tightening the new one, valve covers are commonly aluminum and will warp/bend/crack/etc if you over tighten anything into them.
 
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Old 11-15-07, 12:42 PM
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Every PVC valve I have worked with has been press fit. Didn't know they existed with a screw type.

**Sometimes when you pull the hose the PVC valve stays on the hose.**
 
  #5  
Old 11-15-07, 02:47 PM
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Originally Posted by borak View Post
Every PVC valve I have worked with has been press fit. Didn't know they existed with a screw type.

**Sometimes when you pull the hose the PVC valve stays on the hose.**
Yup, the 4G63 engine comes to mind. Varies.
 
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Old 11-15-07, 03:09 PM
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PVC is polyvinyl chloride (like plastic plumbing pipes or house siding) and PCV is positive crankcase ventilation.
 
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Old 11-15-07, 04:13 PM
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Dyslexic a bit.
 
  #8  
Old 11-16-07, 07:32 AM
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Yep.

I copied the original post and I always jumble the letters. Guess how to change it was on my mind instead of spelling it right.
 
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