So blown away by these folks honoring a verbal quote. My 03 tahoe, which I've put $10k into the past few years had a "parasitic draw." No other businesses except Chevy said they could help. 72 hours later my problem was diagnosed and I had my truck back! These folks lost money on me, but they honored their word and earned a loyal customer. Call JB first, if they cannot do the job they will tell you! Thank you JB! JB