I have a 2003 Chevrolet Duramax diesel truck that I took to Autofix after a Chevy dealer could not identify the cause of my problem. The truck starts perfectly when cold but had begun to fail to start when the engine was hot. Autofix replaced the fuel filter housing and a portal on the front of the engine that were deemed to need replacing, for a cost of 1,108.00. The truck then started cold or hot, but for did so for 225 miles before the problem resurfaced. I took the truck back to Autofix as their advertisements proclaim a 3 year or 36,000 mile warranty on the work. I was told that I would have to pay $284.00 for them to run the diagnostics to find the problem. I replied that they advertised a 3 year warranty on their work. I was told simply, "you needed the parts. You even saw the portal leaking." Their advertisements even say, "customer satisfaction guaranteed." Apparently the guarantee and customer satisfaction exist on paper only. I cannot recommend this business.