WE FIX WHAT OTHER SHOPS CAN'T
GM AFM / DOD Lifter Specialist — Fort Smith, AR
If you own a 2007+ GM truck or SUV with a 5.3L or 6.2L V8, Active Fuel Management is the single most common engine killer in America. We tune it out clean before failure and do the full cam-swap with VLOM tray cleanup after. Done once, never again.
Call (479) 434-5852 Try Live Assist — $20 AI diagAbout the shop
Address
5300 Towson Avenue, Fort Smith, AR 72901
Phone
HoursMon–Fri 8:00 AM – 5:30 PM · Sat 9:00 AM – 1:00 PM · Closed Sun
Service areaFort Smith, Van Buren, Greenwood, Barling, Alma, Muldrow OK, Sallisaw OK
OwnerRobert "Doc" Holmes — two decades on a wrench, ASE Master-level diagnostics, HP Tuners certified.
Why Dr. Underhood
Most independent shops fight over brake jobs. We fight over the work nobody else wants to touch — electrical gremlins, AFM lifter failures, custom tunes, programming, advanced diagnostics. If three shops have already looked at it and nobody fixed it, that's our job.
And if you can't get to Fort Smith — put the car on the phone. $20 gets you AI-assisted diagnosis using a real mechanic's case data. $99 gets you a live video call with Doc.