Engine Cranks But Won’t Start: What to Check

Engine Cranks But Won't Start: What to Check

By a Master Tech who’s chased this ghost across 2,000+ bay stalls Quick Answer: If the starter spins the engine but it never “catches,” you’re missing one of three things—fuel, spark, or compression. Check for 35-45 psi fuel pressure at the rail, a snapping blue spark across a 0.035-in plug gap, and minimum 90 psi … Read more

Why Does My Car Idle Rough When AC Is On?

Why Does My Car Idle Rough When AC Is On?

  Last Tuesday, 3:47 PM—heat index 104°F—a sweating guy in a 2016 Honda Civic LX rolled into my shop looking like he’d seen a ghost. “It’s doing this every time I hit the AC,” he said, mimicking violent shaking. His knuckles were white on the steering wheel. I popped the hood and saw it immediately: … Read more

How to Fix Rough Idle at Startup: A Master Technician’s Step-by-Step Guide

How to Fix Rough Idle at Startup

If your car shudders, bucks, or threatens to stall the moment you turn the key—especially on a chilly morning—you’re dealing with a rough idle at startup. It’s one of the most common yet frustrating issues drivers face. Left unaddressed, it can lead to poor fuel economy, failed emissions tests, or even engine damage over time. … Read more

Grinding Noise When Starting Engine: The Complete Diagnosis and Repair Guide

Grinding Noise When Starting Engine: Diagnosis Guide

It was 6:47 AM on a freezing January morning when Sarah pulled into my bay with her 2015 Honda Accord. “It sounds like metal teeth chewing rocks,” she said, and honestly, that’s the best description I’ve ever heard for a failing starter motor grinding. I turned the key, and sure enough—GRRRRR-GRRRRR-GRRRRR—that unmistakable metal-on-metal shriek that … Read more