My daughter's boyriend has a 91 Century 3100 (I think) with a very high idle speed. He took it to a friend of his who's a "mechanic". The friend said his diagnostic equipment (???) couldn't find anything wrong, but he should get it fixed before the motor is ruined. The friend suggested Precision Tune.
Onitting the comments about this "mechanic", does anyone have any hints on what the problem could be?
The idle speed is very high & sucks gas like crazy. I haven't driven the car, so I don't have much more than that to go on.
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