J & J Diesel Repair LLC

06/03/2026

Another road call knocked out and customer back rolling. We repaired an air leak on the trailer by shortening the damaged air lines and making a simple, effective repair on-site. Minimal downtime, minimal expense, and no tow bill.

05/13/2026

🚨 “I PUT DEF IN MY DIESEL…” 🚨

That phone call will make anybody panic 😳💸
But don’t worry — it happens more than people think, and it DOES NOT always mean a full dealer replacement. 👏

This customer accidentally put DEF in the fuel tank and was told it could cost THOUSANDS 😵‍💫

Instead of panic, we went to work 💪

✔️ Tank drained
✔️ Fuel system flushed
✔️ New fuel filters installed
✔️ Test drive completed
✔️ Customer back on the road 🙌

Using experience, logic, and doing everything possible before throwing parts at it saved this customer a LOT of money 💰

Turning:
“Oh no…” ➡️ “THANK YOU!” 🔥

04/30/2026

🚨 SERVICE CALL 🚨
Unit stuck with a broken air line—wasn’t going anywhere.

Replaced the line and found a second air leak at another fitting 🔧
Got it fixed and back moving 💪

Did you know we can come directly to many plants in the area?
Skip the tow bill…. we’ll come to you.

04/22/2026

When the codes keep coming back… you fix the ROOT of the problem 💪

High crankcase pressure issue on this one new filter and sensor installed 🔧
Test drive ✔️
No more faults ✔️

Back on the road the RIGHT way.

04/17/2026

Donut Friday with the crew 🍩❤️
Long week, early mornings… but this makes it worth it 💪

04/15/2026

Fueling more than trucks this week 💪💛
Proud to give back to those who answer the call when it matters most. 💛

Big thanks to J & J Diesel Repair LLC for fueling Houston Co Sheriff Comm Center's snack addiction!

04/14/2026

Fan quits = LONG HOT DAY 🥵

New blower motor ✔️
Upgraded fans ✔️
Cold air again ❄️

If your A/C is acting up, don’t ignore it… it won’t fix itself 🔧

04/11/2026

During the week… we’re under the hood 🔧
On the weekends… we’re on the field ⚾️

Same work ethic. Same dedication. Just a different kind of grind. 💪

04/10/2026

🚨 BREAKDOWN CALL 🚨
Truck down in New Brockton check engine light, derate, not going anywhere.
Another company showed up, hooked a scanner, charged $500….and left.

We came in, found the issue…. DEF injector 🔧
Ran a regen and got this truck BACK ON THE ROAD 💪🔥

That’s the difference.
We don’t guess, we FIX it.

12/25/2025

Merry Christmas to all our friends and customers