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Rough idle... 200

uid 25696's pic
posted by  SILVER-BRICK on  Thu Sep 15 02:57 CST 2005
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last visit: Wed Jun 9 15:44 CST 2010
[RELATED]

A couple weeks ago, I tuned-up my '92 245 with 191,000 on the clock. New plugs (properly gapped!), new cap and rotor. Shortly thereafter, it started to idle rough. I checked all my vacuum lines but found nothing disconnected. I thought it may be a bad tankful of petrol since the problem started just after my last fill-up. I have since filled it with petrol from a different station, but no change. It runs fine at cruising speeds and my mpg has not suffered, but its embarrassing AND frustrating to be sitting at a red light in a brick that jiggles like a huge vibrator! Lately, it has been around 50 degrees in the morning. When I first start up, smooth idle! As is warms, it gets more choppy. Ideas, please!!






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