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Erratic idle when warm on 2.7L
engine generally runs great except when engine reaches 180 degrees, it will want to almost cut out, meaning idle will dip below 900rpm then try to go back up. Sometimes it will go back and forth before it stabolizes. Vacuum hoses were replaced during recent rebuild.
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1974 911 2.7L coupe with sunroof |
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09-03-2002, 12:46 PM
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Join Date: Jun 2002
Location: New Hampshire
Posts: 724
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I had the same problem. The decelerator valve was out of adustment, along with the idle adustment. I first adusted the decel valve to get it to settle down then I adusted the idle. Have had no problems since. This may or may not be your problem, but it was an easy check for me and fortunately it worked.
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Ice Green '77 Targa 3.6 w/ Steve Wong chip One Way To Get More Horsepower Is To Get A Bigger Horse! "I couldn't find the sports car of my dreams, so I built it myself" Ferdinand Porsche |
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09-03-2002, 02:13 PM
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Join Date: Feb 2003
Posts: 58
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Re: Erratic idle when warm on 2.7L
Quote:
Am having this exact same problem on my '79 SC. Any feedback?
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1979 911 SC Targa |
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03-07-2003, 10:55 AM
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1974 Porsche 911 2.7L 
