02/15/2026
🚨 Losing Coolant With No Visible Leaks? 🚨
If your truck or machine is mysteriously losing coolant and you can’t find an external leak, you could be dealing with a failing EGR cooler.
This CAT 938M with a C7 engine came in with exactly that issue. The EGR cooler needed replacement — and like many of these repairs, it uncovered a few extras along the way, including broken turbo studs that had to be handled properly.
No shortcuts. No temporary fixes. Just thorough diagnostics and solid repairs done right the first time.
At Orange County Heavy Repair, we specialize in heavy-duty truck and equipment diagnostics and repairs — keeping your fleet reliable and on the job.
📍 Orange County, NY
📞 845-820-6604
If your equipment is losing coolant or acting up, let’s get it diagnosed before it turns into a bigger problem.