Think I needed to replace this? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 11-21-2005, 02:16 AM   #11
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the "positive crankcase ventilation" vlve is essentially a device to suck crankcase fumes out of the engine and re-burn them in the cylinders.

In your car, it'* located on the left-hand side of the engine atop the plastic intake manifold (standing in front of the car) and will have a large vacuum hose leading to it. You'll have to take the engine cover off to see it.

Oh, and change your fuel filter. It'* located on the frame just under the rear passenger side door and takes about 10 minutes. And it needs changing, I promise you.
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Old 11-21-2005, 02:20 AM   #12
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It got replaced along with the new fuel pump.
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Old 11-21-2005, 02:21 AM   #13
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Is the PCV Valve something that needs replacing regularly? Does it hurt performance any?
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Old 11-21-2005, 02:24 AM   #14
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I'm sure there'* a "recommended interval," because GM likes to sell parts.

My criteria for replacement has always been "if it rattles, it'* good."

As to performance, it'* a vacuum leak, but designed in.
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Old 11-21-2005, 02:49 AM   #15
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Quote:
Originally Posted by Bob Dillon
I'm sure there'* a "recommended interval," because GM likes to sell parts. .
interestingly enough the FSM'* do not give or recommend a service interval for the fuel fliter
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Old 11-21-2005, 07:56 AM   #16
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It take me like 20mins a year ago to find the pvc.That does look dirty mine when I pulled basiclly brand new.
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Old 11-21-2005, 09:08 AM   #17
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I would recommend checking the PCV every 6 months to a year. At that time while doing other maintenace replace it for the cost and time.
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Old 11-21-2005, 11:45 AM   #18
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Quote:
Originally Posted by BillBoost37
I would recommend checking the PCV every 6 months to a year. At that time while doing other maintenace replace it for the cost and time.
I remember when Boosty and Pat were trying to help me on the phone to find the damn thing. Was good fun. It took longer to freaking find it then it did replace it.
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Old 11-21-2005, 11:54 AM   #19
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Quote:
Originally Posted by BillBoost37
I would recommend checking the PCV every 6 months to a year. At that time while doing other maintenace replace it for the cost and time.
I remember when Boosty and Pat were trying to help me on the phone to find the damn thing. Was good fun. It took longer to freaking find it then it did replace it.
He said something like .. Hang on I'm grabbing my channel locks and going in! Still surprises me that he hasn't broken too much on the car yet.
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Old 11-25-2005, 02:12 AM   #20
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Well the new PCV and Fuel filter netted me +4 MPG. A tune up is still due for sure as I am only getting 19MPG right now and I drive pretty much like a 33 yr old with a kid.
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