Black Flag Diesel Co.

09/03/2026

We have been super busy lately! 2013 f150 we just finished up the other day got a new timing set with phasers, new melling high volume oil pump along with upgraded BD diesel exhaust manifolds and replaced all the problematic coolant fittings for the turbos. Also got into the transmission and pulled the valve body to replace the molded lead frame. If you need any work like this done on your eco boost f150 contact us!!

09/01/2026

Either end of this week or next week, we will be switching phone numbers. Too much business getting mixed with my personal phone number, I will keep you posted when the new number comes but moving forward once I get everything switched over, please contact the business phone. Thank you!!

08/07/2026

If you have fleet we try and do same day turnaround depending on the repair call to get on the schedule 615-796-1409!! Some long overdue maintenance on a 6.2 f250 gasser service truck and fixing the death wobble!! New upper radiator hose, New front shocks, steering damper, track bar ball joint and LF wheel bearing that was almost about to come apart. Made it 200k+ miles on original spark plugs, wires and coils and we got them 16 new plugs, wires and coil boots put on from all the corrosion.

08/02/2026

21 L5P duramax getting some love and upgrades and some weight reduction!

08/02/2026

We are one of the few shops in middle Tennessee that will still work on 6.0/6.4 powerstrokes give us a call today if you’re wanting all the 6.0 problems upgraded and custom tuning to go along with it!! 615-796-1409

08/01/2026

Another one down! Come see us at black flag diesel and get your truck right!! 615-796-1409

07/02/2026

If you were wanting a lift pump installed, this is your sign!! Message us for install and pricing 🇺🇸📲

We had to send someone up to the top of the Empire State Building to get you guys this message. You absolutely deserve to prolong the life of your fuel injection system! Remove entrapped air, water, and contaminants from your diesel fuel that lead to costly repairs.

Pick yours up at PureFlowAirDog.com.

06/28/2026

SERVING MIDDLE TENNESSEE!! Give us a call and get on the schedule for all your automotive and diesel needs 615-796-1409

06/26/2026

2nd car today 2006 Honda accord got a new condenser, belt, a/c compressor, starter and power steering pump replaced

06/26/2026

Busy day today! Knocked a couple cars out. First was a 2011 Altima got a new valve cover, 4 new tires, 2 new cv axles, both front wheel bearings, front brake pads, a radiator and a right rear wheel bearing