...
...
1-909-602-6678
Spicy Lemon Auto Repair

Diagnostics

Services /

Grid
... PREV NEXT ..

SPICY LEMON AUTO — ENGINE DIAGNOSTICS & PERFORMANCE MAINTENANCE

Modern engines are smart — but when something’s off, they’ll throw codes, stumble under load, or just run plain weird. At Spicy Lemon Auto, we go deeper than a scan tool printout. We specialize in full-spectrum diagnostics, including misfire tracing, sensor verification, compression and leakdown testing, and real-world drivability analysis. From check engine lights and timing issues to poor fuel economy or lack of power, our team finds the root cause — not just the symptom. We use factory tools, years of wrench-time wisdom, and a clean work ethic to fix it right and keep your engine running like it should.

...

Services Included:

  • Check engine light diagnostics and troubleshooting
  • Ignition system testing (spark plugs, coils, and wires)
  • Fuel system inspections and injector pulse checks
  • Sensor readings (MAF, O2, MAP, and more)
  • Timing belt and chain assessments
  • Idle issues, stalling, and misfire diagnosis
  • Scan tool data analysis and freeze frame review
  • Emissions and readiness monitor verification

ENGINE PERFORMANCE & TUNE-UPS

Every visit starts with a deep dive into your engine’s health — from misfire patterns and idle quality to timing, compression, and fuel delivery. We inspect spark plugs, ignition components, belts, and airflow sensors to catch anything that might be robbing your power or efficiency. Whether it’s a subtle stumble or a flashing check engine light, we’ll trace it down and dial your performance back in before it leaves you stranded or underperforming.

CUSTOM ENGINE DIAGNOSTICS & STRATEGIES

No two engine problems are the same. Whether you’re chasing down a rough idle, sluggish acceleration, or mystery misfire, we build a diagnostic game plan based on your symptoms, driving habits, and vehicle history. From worn spark plugs to stretched timing chains, we don’t throw parts at the problem — we test, explain, and get it right the first time.

... ...
ENGINE PERFORMANCE & SYSTEM HEALTH

Your car’s safety starts here. From brake squeals to suspension clunks, we diagnose the source — whether it’s worn pads, warped rotors, bad struts, or tired bushings. We’ll inspect, test, and verify that everything under your ride is doing its job — stopping strong and rolling smooth.

SUSPENSION & RIDE CONTROL DIAGNOSTICS

BRAKES, ABS & SAFETY SYSTEMS

Your car’s most critical safety systems depend on strong, responsive brakes. We inspect and service pads, rotors, calipers, and ABS components to make sure you’re stopping straight, smooth, and on time. Whether it’s a soft pedal, warning light, or emergency stop, your brakes need to be ready when it counts.

Frequently Asked Questions

What engine diagnostic services do you offer at your auto repair shop?
We specialize in full-spectrum diagnostics that get to the root of engine issues — from check engine lights and misfires to tune-up essentials like spark plugs, coils, and fuel trims. Whether your car’s running rough, throwing codes, or just feels off, we use precision testing to pinpoint the cause. From timing problems to sensor failures, we don’t guess — we verify, explain, and restore performance with repairs that actually fix the issue the first time.
How often should I have my engine diagnosed or tuned up?
We recommend a full engine diagnostic or tune-up at least once a year — or anytime you notice sluggish starts, misfires, poor fuel economy, or a check engine light. Spark plugs wear, sensors drift, and timing components fall out of spec over time. The sooner we catch it, the better your engine performs — smoother idle, stronger throttle response, and better mileage. Swing by — we’ll plug in, scope it out, and give you a straight-shooting breakdown of your engine’s health.
How do I know if my engine needs diagnostics or a tune-up?
Look out for signs like rough idle, sluggish acceleration, poor fuel economy, or an illuminated check engine light. Hard starts, stalling, or unusual noises under the hood can all point to deeper performance issues. These symptoms don’t fix themselves — and left unchecked, they can lead to more expensive repairs. We offer quick scans and in-depth diagnostics to catch problems early and keep your engine firing on all cylinders.
What happens if I ignore engine performance issues?
Brushing off engine problems can lead to more than just a check engine light. A rough idle or weak acceleration today might turn into misfires, overheating, or timing issues tomorrow. Something as small as a fouled spark plug or lazy sensor can snowball into poor fuel economy, drivability issues, or even internal engine damage. The longer it goes unchecked, the more strain you put on your ignition, fuel, and emissions systems. That’s why we push for early diagnostics — it’s not just about keeping the light off, it’s about keeping your engine running strong, safe, and efficient.
How can I maintain my vehicle’s engine performance between visits?
Great question. Staying ahead of engine health keeps your ride running clean, responsive, and efficient. Here’s what you can do between checkups:
  • Listen to the idle. Is your engine stumbling, revving unevenly, or running rough? That’s your cue something’s off with fuel, air, or ignition.
  • Watch for warning lights. A blinking or solid check engine light is more than a nuisance — it’s your onboard computer flagging trouble before it worsens.
  • Monitor your MPG. If your gas mileage drops unexpectedly, you might be dealing with a misfire, lazy sensor, or fuel delivery issue.
  • Check your startup. Hard starts, long cranks, or needing to rev it up just to get going aren’t normal — they’re worth checking out.
  • Listen under load. Knocking, pinging, or sluggish throttle response under acceleration could be timing or combustion related.
  • When in doubt, swing by. We’ll scan it, test it, and give you a no-pressure status report so you’re not driving blind.

Better a quick check today than a full teardown tomorrow.

...
...

Call Us

...

Email Us

231 S E Street, San Bernardino CA, 92401
Mon-Fri 8am-4pm

Get in touch with our experts

Got a check engine light, a weird stumble, or a loss of power that wasn’t there yesterday? We’re here to help. Whether it’s a misfire, poor fuel economy, or your car just doesn’t feel right, our team’s got the scanners, tools, and real-world experience to get to the bottom of it. Let’s talk shop — no pressure, no upsells. Just straight answers from techs who know the difference between a worn plug and a real engine problem.

... GET IN TOUCH WITH US