12 mpg 1993 ssei ???!!! - 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 02-23-2009, 05:47 PM   #11
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Okay So I replaced the fuel filter and I didn't notice any difference. So I suppose now I must try the next thing.
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Old 02-23-2009, 06:50 PM   #12
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How Can I tell if the PCV is bad?

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Old 02-23-2009, 06:53 PM   #13
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All you can really do is check everything you can, test what you can, and replace what ever needs to be replaced.
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Old 02-23-2009, 07:00 PM   #14
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Quote:
Originally Posted by HarpKatt View Post
How Can I tell if the PCV is bad?
If you take the PCV out and it rattles loosely when you shake it, it'* good. They are pretty cheap and replacing one is not that big of deal.
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Old 02-23-2009, 07:03 PM   #15
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There'* a write up on changing yoru PCV in the tech info area. Real easy job.
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Old 02-24-2009, 02:32 PM   #16
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I took the PCV out it looks fine but should it come out when I pull the spring out? they were stuck together and it came out rather easily.
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Old 02-24-2009, 03:09 PM   #17
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That'* fine. But watch for the rubber O-ring.
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Old 02-24-2009, 11:57 PM   #18
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A friend said that it could be an air intake temperature sensor. Is that a possibility?
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Old 02-25-2009, 12:01 AM   #19
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Yes, that can have an effect on how the engine runs. The PCM needs to know the correct temp as the air enters the MAF.
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Old 02-27-2009, 10:01 AM   #20
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To update this problem is still unresolved.
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