lag at about 80km/hr

2007 CHEVROLET EQUINOX
91,000 MILES
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LBCALGARY
Hi, I thought it may be a transmission problem and a friend who drove with me said his wife had same issue with her vehicle. About $2,000 of unnecessary repairs later he was told it was the catalytic converter - and a $5,000 repair job.

Any suggestions on how I can avoid getting ripped off and identify the problem correctly from the get go?

Thanks very much for your help!
Apr 13, 2013 at 4:03 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
have the back pressure checked to verify the cat failing

Roy
Apr 13, 2013 at 4:06 PM
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