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Knock vs ping
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Posted by CrNiFe [Email] (#408) [Profile/Gallery] (more from CrNiFe) on Fri, 23 Apr 2010 08:55:56 Share Post by Email
In Reply to: Engine Knocking Question 99 9-5 4 cyl 136K, Calvin, Thu, 22 Apr 2010 08:23:56
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In layman's terms - knock - the damn engine feels like it is going to blow and is louder than an unmuffled diesel; makes one worried that the engine will fall out of the car, etc.

ping - you hit the accelerator, and you can hear a bit of noise

So does the guy who has never had a SAAB know what it is supposed to sound like? Is she smoking white, gray or black out the tailpipe?

My MY99 9-5 pings, when I use low octane gas, occasionally, and it disappears when I run on 94. Over 110,000 miles on it.

My MY05 9-5 Arc pings too, if if put the cheap gas in. 50,000 miles on it.

buy it for parts (ie, pretend it doesn't even have an engine), and then take it home, and wait for a pleasant surprise. Trust your ears, not his.

CrNiFe
Toronto

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