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15,000 MILES
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ACUMEN
  • MEMBER
  • 1 POST
my impala stumbbles and missfires after warm up. i run perfect at start up.
Jan 5, 2012 at 9:49 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
check fuel pump pressure and scan for codes. clean throttle plate and idle air control valve. hook duct work up after doing this.
Jan 5, 2012 at 10:20 AM
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