2003 Chevy Impala knocking noise

200,000 MILES • 6 CYL • FWD • AUTOMATIC
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MBURTON
  • MEMBER
  • 1 POST
i just changed my o2 sensor and the next day my car starts making a knocking sound and doesnt drive well at all. but before i changed the sensor it was driving fine! help
May 5, 2009 at 1:59 PM
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ZACKMAN
  • ✓Experienced Mechanic
  • 4,202 POSTS
What prompted the replacement? Did you get a code? If so, what is the code number? Which sensor was replaced? You have 4, be specific. Part number of the part would be helpful.
May 10, 2009 at 12:12 PM
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