Tachometer may fluctuate if screws holding PCM are not tight on Plymouth Neon
Problem overview
If the screws holding the case of the powertrain control module (PCM) are not tight, the tachometer may fluctuate or bounce from 300 to 1000 RPM while driving at a steady speed.
1 person reported this problem
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Plymouth Neon vehicles with this problem
1 model year affected
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