Category: Auto Diagnostics

Fleet maintenance rarely becomes expensive because of one dramatic failure. More often, the costs build quietly: a tire that wears unevenly, a small coolant leak that goes unnoticed, an overdue oil service, or a truck that spends half its day idling. For fleet managers and owner-operators in Trinidad, Southern Colorado, and Northern New Mexico, those…

For most folks driving a sedan, Raton Pass is just a scenic stretch on I-25 where the radio signal gets a little spotty. But for a trucker hauling 80,000 pounds, that 7,834-foot summit on the Colorado-New Mexico border is a different beast entirely. It’s the gateway between Trinidad and Raton, and it demands respect. Whether…

Living in Southern Colorado, particularly around Trinidad and Las Animas County, offers some of the most breathtaking views in the country. From the rugged beauty of the Sangre de Cristo Mountains to the wide-open high desert, we are lucky to call this area home. However, while our scenery is world-class, our roads are notoriously tough…

There is a specific kind of sinking feeling you get when you’re hauling a heavy load up Raton Pass or cruising through the high desert of Southern Colorado and your truck just… stops giving you more. You press the pedal, but the RPMs don't climb, the turbo doesn't whistle like it used to, and suddenly,…

There is nothing quite like the feeling of a heavy load behind you and a steep grade in front of you: until you put your foot down and… nothing. No roar, no boost, just a sluggish crawl and a rising sense of dread as you watch your RPMs struggle. When your semi truck starts losing…

If you live in or around Trinidad, Colorado, you know that our diesel pickups aren’t just vehicles: they’re our lifeblood. Whether you’re hauling cattle, heading up to the Purgatory area for the weekend, or just making sure your business stays on schedule, a reliable truck is non-negotiable. But lately, have you noticed your engine acting…

You’re cruising along Highway 12 near Trinidad when ding—a mysterious amber light flickers to life on your dashboard. Three little words that can fill any driver with dread: Check Engine Light. Is it something small or a serious mechanical issue? Should you keep driving or pull over immediately? At ER Auto & Diesel, LLC, we’ve…