Category: Auto Diagnostics

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…