Drew Callahan · March 24, 2026
I was three weeks into a late-August trip down through Arizona when I noticed the rooftop AC on my Cornerstone wasn’t doing much of anything. The compressor would click on, the refrigerant lines would get cold—I could feel it—but the condenser fan on top just sat there. No spin, no hum, nothing. Within five minutes … Read more
Drew Callahan · December 29, 2025
Air Brake System Maintenance for ENTEGRA CORNERSTONE Skip air brake maintenance on an Entegra Cornerstone and you’ll eventually face either an expensive mobile technician visit or a roadside emergency where your stopping power simply isn’t there when you need it most. That’s not hyperbole — on a 40,000-pound coach, compromised air brakes aren’t just inconvenient, … Read more
Drew Callahan · December 28, 2025
Cooling System Service for ENTEGRA CORNERSTONE I’m bent over the radiator shroud with a coolant hydrometer in one hand, watching the fluid level drop as I tip it—the antifreeze is murky orange instead of the bright red it should be, and that tells me everything I need to know. The previous owner either ignored the … Read more
Drew Callahan · December 28, 2025
Diesel Engine Oil Service for ENTEGRA CORNERSTONE A shop quoted me $1,200 last month to handle the oil and fuel filter service on a customer’s Cornerstone – labor alone, no parts. That’s what happens when you roll into a dealer not knowing what you’re doing, or worse, when you’ve let the interval slip so far … Read more
