ACE Smog Center

Smog inspection station
Open · Closes 6:00 PM
4.2 (90 reviews)
601 E Holt Blvd, Ontario, CA 91761

About

ACE Smog Center is a provider of smog check and emissions testing services in Ontario, California. They offer thorough vehicle inspections to ensure compliance with emissions standards. Their services include smog check testing, vehicle inspections, OBD-II diagnostics, and check engine light diagnostics. The business also provides emissions-related repairs such as catalytic converter, exhaust, and O2 sensor services. Located on East Holt Boulevard, they focus on vehicle emissions and inspection services, not general auto repairs. Their testing ensures that vehicles meet regulatory standards and helps reduce pollution from automobiles in Ontario and surrounding areas.

smog check vehicle inspection obd testing Ontario California emissions testing

Services Offered

smog check
Vehicle Inspection
OBD-II Diagnostics
Check Engine Light Diagnosis
Catalytic Converter Service
Exhaust Repair
O2 Sensor Replacement

What Customers Say

Review Summary

This station awaits its first online reviews. They handle smog certifications, emissions checks, and vehicle diagnostics. Get in touch for pricing and wait time information.

Hours Open now
Mon 8 am–6 pm
Tue 8 am–6 pm
Wed 8 am–6 pm
Thu 8:30 am–6 pm
Fri 8 am–6 pm
Sat 8 am–4 pm
Sun Closed

Frequently Asked Questions

Discover quick and comprehensive answers to common questions about our platform, listings, and services.

1. ACE Smog Center is located at 601 E Holt Blvd, Ontario, California.
2. They offer smog check, vehicle inspection, OBD-II diagnostics, check engine light diagnosis, and emissions repairs.
3. Yes, ACE Smog Center provides smog check and emissions testing services in Ontario, California.
4. Their hours are Monday to Saturday from 8am to 6pm, with slightly different hours on Saturday and Thursday, and closed on Sundays.
5. You can contact ACE Smog Center at +1 909-460-3090 for more information.
6. Appointments are not always necessary, but calling ahead can help ensure service availability.
7. Service times vary, but most tests are completed within a short period during regular hours.
Customers rate ACE Smog Center highly with a 4.2-star average based on 90 reviews. Drivers often mention quick service and professional staff. For the latest feedback, check recent reviews on Google or other review platforms.

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Making the Most of Your Visit to ACE Smog Center

Choosing the right emissions testing or smog check station in Ontario, California can save you time, reduce stress, and help ensure your vehicle passes its inspection on the first try. ACE Smog Center is one of the licensed smog check locations in the area, and preparing properly before your visit can make the process smoother.

Understanding California Smog Check Requirements

Emissions testing and smog check rules in California vary by vehicle type, registration ZIP code, and model year. Since requirements can differ even within Ontario, confirm what applies to you before heading to ACE Smog Center. Our California emissions testing guide outlines current 2025 rules, exemptions, and testing intervals.

Before Your Smog Check

To help make your emissions test quick and successful, consider preparing the following:

  • Confirm your registration address requires testing.
  • Ensure your check engine light is off and no recent codes have been cleared.
  • Warm up your vehicle by driving 10 to 15 minutes before testing.
  • Bring your registration or renewal notice and a valid photo ID.

Why Reviews Matter

Customer experiences can vary, so reading feedback from other drivers can help you understand what to expect. ACE Smog Center currently has 90 reviews, which can provide insights into service quality, wait times, and professionalism.

"Clear communication and preparation make your smog check easier. Ask ACE Smog Center about wait times, retest policies, or emissions repair services if you have concerns."

Visit Checklist

  • 1
    Verify Certification

    Ensure ACE Smog Center is an active, licensed smog check station in California.

  • 2
    Check Reviews

    Read recent customer feedback from other Ontario drivers to understand typical wait times and service quality.

  • 3
    Confirm Services

    Call ahead to confirm the types of smog checks and emissions tests offered and whether appointments are required.

  • 4
    Bring Required Documents

    Have your registration or renewal notice, ID, and any required paperwork ready when visiting the station.

  • 5
    Ask About Retest Policies

    Some stations offer discounted or free retests if your vehicle fails. Ask for details up front.

* This guide is for informational purposes only. Always confirm emissions testing requirements and smog check policies with your local California authorities.