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Diagnostics & Engine

We diagnose,
we don’t guess.

Check-engine lights, misfires, and drivability problems, diagnosed properly before a single part goes on.

Diagnostics & engine

The real problem,
in plain English.

A check-engine light is not a diagnosis, it is a starting point. Herlin runs proper diagnostics before touching a part, then tells you in plain English what is actually wrong. Spark plugs, ignition coils, throttle bodies, sensors, misfires, and rough running, one review describes photos of the exact cracked coil and dirty throttle body he found and fixed. Twenty-one years of experience and ASE Master certification behind every diagnosis.

5.0 across 25 Google reviews · ASE Master · 21 years
Throttle body cleaned during engine service

Check-engine diagnostics

Codes read and traced to the real cause, not a parts-cannon guess.

Misfires & rough running

Spark plugs, coils, and ignition issues found and fixed.

Throttle & sensors

Dirty throttle bodies, bad sensors, and drivability faults.

Photos of what we find

He shows you the actual part, so you see what you are paying for.

Engine repair

From small fixes to bigger jobs, done right and road-tested.

Open 24 hours

Answered around the clock. Ask for Herlin.

The I-15 corridor · Open 24 hours

Car acting up between
Vegas and St. George?

An overheated Jeep on the shoulder, a flashing check-engine light, A/C dead at 113 degrees, read the reviews: I-15 travelers keep finding Herlin because he answers the phone and comes to you. Don’t push it across the desert. Call.

Call (435) 209-0130

Diagnose first, honest every time

The reviews say it over and over: honest, fair, knowledgeable. Herlin diagnoses the real problem before quoting parts, sends you photos of what he finds, and gives a straight number before the work starts. Twenty-one years of experience and ASE Master certification, aimed at getting you back on the road, not padding a bill.

Diagnostics & Engine FAQ

Questions,
answered.

My check-engine light is on, what do you do?
We run proper diagnostics to trace the light to its real cause before recommending any parts, then explain what is actually wrong in plain English. No guessing, no parts-cannon.
Will you show me what is wrong?
Yes. Herlin is known for sending photos of exactly what he finds, the cracked coil, the dirty throttle body, so you can see what you are paying to fix.
Are you certified and experienced?
Yes, Herlin is ASE Master certified and a Ford master technician, with 21 years of experience. Honest, solid work is the whole reputation.
Mesquite, Nevada

Light on?
Let’s find out why.

Tell us what the car is doing, the light, the noise, the leak, and we will tell you what it needs, straight.

CallGet in touch