10.0

really awful
Typical Repair Cost:
$40
Average Mileage:
115,000 miles
Total Complaints:
1 complaints

Most common solutions:

  1. replace tps module (1 reports)
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problem #1

Aug 182010

Impala 3.4L

  • Automatic transmission
  • 115,000 miles

Runaway 2000 Impala with the 3.4 engine is caused by a flaky Throttle Position Sensor module (TPS). May take up to 3 years before it throws the code. Will do 50 mph uphill with foot off the gas. Replaced the TPS a year ago and has been running well since.

Just thought I'd send along the tip as it was a real stumper for this here shade tree mechanic.

- Paul C., Phoenixville, PA, US