2001 Chevy Impala

2001 CHEVROLET IMPALA
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JTV123
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Engine Performance problem
2001 Chevy Impala 6 cyl Wheel Drive Type unknown Automatic 112000 miles
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Car wont go pass 50 mph even if you steep on it
Mar 2, 2008 at 12:24 PM
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SERVICE WRITER
  • ✓Experienced Mechanic
  • 9,123 POSTS
Does this happen cold or warm?

Is the engine rpm increasing but speed not increasing?

Are there any codes in the pcm? Is CEL on?

Fuel pump wave pattern check may show a faulty pump.
Mar 3, 2008 at 12:07 AM
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