At 16,000 miles I heard a exhaust leak, more pronounced when the vehicle was cold. Sound like defective catylitic convertor issue. I have had it back 2 times at the same dealer I purchased it from they said on the second trip back, could I leave it for 24 hrs so they could test it to which I said yes. When I dropped it off I put a penny over the front tire. 24 hrs later they called me, stating they could not find anything. Guess what when I picked the truck back up it was in the same parking spot with the penney over the tire. What a test. If this is not corrected, my toyota buying days are over. My friend is a cheif mechanic at a gm dealer and agrees it has a exhaust issue.
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