07/30/2026
🚛 Customer called with an International showing multiple warning lights, check engine light, and a dash full of fault codes. On top of that, none of the gauges were working. Time to hook up the JPRO and start diagnosing.
After working through the faults, the culprit turned out to be something much simpler than expected—loose battery cables and ground connections. Once everything was cleaned up and tightened, I cleared the codes with JPRO and the truck came back to life.
But that’s why you never stop after fixing the first problem… Once the truck built full air pressure, the air dryer purge valve started leaking. The customer needed to get back on the road, so I replaced the air dryer and got everything taken care of.
A proper diagnosis saves time, money, and unnecessary parts. Don’t just throw parts at a problem—find the actual cause.
📍24/7 Mobile Commercial Truck Repair
🔧 Diagnostics • Electrical • Air Systems • Engine Repairs • PM Services
📞 Big Rig Services LLC
Have you ever had a “simple fix” turn into finding another hidden issue? Let me know in the comments! 👇