Drew Callahan Drew Callahan · January 10, 2026
Water Pump Replacement for NEWMAR BAY STAR I have a photo on my phone from two winters ago—a Newmar Bay Star parked in the Sonoran Desert, and me standing in front of the fresh water cabinet with a corroded pump connector in my palm, the spade terminals green with oxidation and the housing cracked from … Read more
Drew Callahan · January 10, 2026
Roof Leak Repair and Resealing for NEWMAR BAY STAR “Drew, I just picked up a ’09 Bay Star at auction and the ceiling around the AC unit is starting to stain. Am I looking at major structural damage, or can I catch this before it gets out of hand?” That’s the call I got from … Read more
Drew Callahan · January 9, 2026
Top 20 Class C RV Models and Their Top 3 DIY Repairs My hands are usually covered in something—grease, caulk, or whatever fluid decided to leak onto the bay floor that morning. After eighty-thousand miles and three different rigs, I’ve learned that Class C failures follow a pattern you can actually predict. A water pump … Read more
Drew Callahan · January 9, 2026
Air Brake System Maintenance and Air Dryer Cartridge Replacement for NEWMAR DUTCH STAR Most Dutch Star owners don’t realize their air brake system is slowly filling with water until the brakes feel like they’re working through wet concrete on a mountain pass. A shop quoted me $1,200 in labor to swap the air dryer cartridge … Read more
Drew Callahan · January 8, 2026
Slide-Out Room Hydraulic System Service for NEWMAR DUTCH STAR Most Dutch Star owners ignore their slide-out hydraulic system until it stops moving — and by then, you’re either pinned in place or facing a repair bill that could’ve been prevented with basic maintenance. The thing is, hydraulics aren’t complicated once you understand what you’re looking … Read more
Drew Callahan · January 8, 2026
Diesel Engine Oil and Filter Service for NEWMAR DUTCH STAR I’m underneath the Dutch Star, oil drain pan positioned, socket fitted to the plug, and I can already tell by the color of what’s about to drain that the previous owner ignored the service schedule entirely. The oil that starts flowing is nearly black—darker than … Read more
Drew Callahan · January 7, 2026
Diesel Engine Oil Service for TIFFIN ZEPHYR I was three weeks into a stretch through the high desert when the oil pressure gauge started creeping lower than it should on flat ground. Nothing dramatic—just enough that I knew something had shifted. Pulled into a dusty BLM lot outside Moab, popped the engine hatch, and realized … Read more
Drew Callahan · January 7, 2026
Air Brake System Maintenance for TIFFIN ZEPHYR You’ll get two completely different stories about Zephyr air brake maintenance depending on who you ask. Dealers will tell you that factory intervals are fine and that moisture in your lines is normal wear. The forums full of owners who’ve actually owned these rigs will tell you that’s … Read more
Drew Callahan · January 7, 2026
Diesel Engine Cooling System Service for TIFFIN ALLEGRO BUS Tiffin Allegro Bus owners living in the Southwest or running extended boondocking seasons hit a wall around 70,000–90,000 miles when the cooling system decides to leak. Not dramatically — just a slow, persistent weep from the lower radiator tank or a water pump that’s crying a … Read more
Drew Callahan · January 6, 2026
Air Brake System Maintenance for AMERICAN COACH AMERICAN EAGLE Your American Coach American Eagle’s owner manual and the dealer service department will both skip over something critical about air brake maintenance: the system you’re relying on to haul 40,000 pounds to a complete stop isn’t just a convenience—it’s engineered redundancy that demands respect, and a … Read more
