I just bought one of these a couple weeks ago, didn't notice it on the test drive at the time, but a couple days later I noticed the car idling rough. A couple days ago I changed out the plugs and wires to try and correct the problem, no difference. The plugs themselves looked great, no fouling, no oil, no deposits, just a little brown.
Looking at the tach, "normal" idle seems to be about 600, though it'll dip down to 500 momentarily then recover immediately. That slight dip is what causes the vibration. Took it to the dealer and they said it's just a characteristic of 4-cylinder engines, I call Bee Ess on that one. Now I'm thinking vacuum leak, but after that I'm all out of ideas. It's a 2.2 OHV with 4-speed auto, 48,000 miles. The car runs smooth during normal driving, only runs rough at idle. There is no CEL and the dealer said everything was "within spec." However, they're closed today so I can't get the car back until Monday.
Looking at the tach, "normal" idle seems to be about 600, though it'll dip down to 500 momentarily then recover immediately. That slight dip is what causes the vibration. Took it to the dealer and they said it's just a characteristic of 4-cylinder engines, I call Bee Ess on that one. Now I'm thinking vacuum leak, but after that I'm all out of ideas. It's a 2.2 OHV with 4-speed auto, 48,000 miles. The car runs smooth during normal driving, only runs rough at idle. There is no CEL and the dealer said everything was "within spec." However, they're closed today so I can't get the car back until Monday.
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