Smog Check: Testing and Repairs

*Please bring your DMV renewal notice indicating a Smog Check is required with you and your Smog Check certificate will be electronically sent to the DMV.

Why Choose Northwest Auto & Diesel in Houston for Your Smog Testing and Repair

Smog test and repair options to minimize cost and maximize convenience
Smog failure diagnosis with onsite repair and smog retesting
State-of-the-art automotive smog repair systems and tools
Over [YEARS] years of experience
We participate in the California State Free Smog Testing Program
Ask about smog repair discounts and coupons

your neighboorhood's Trusted Source for Smog Testing and Repair
Drivers near your neighboorhood return to Northwest Auto & Diesel every two years for fast, affordable, and friendly smog testing and repair. We are driving distance from you, just [XROADMINS] from [XROAD]. Ask any car or truck owner in your neighboorhood who they recommend for smog testing and repair, and they will tell you Northwest Auto & Diesel.

For [YEARS] years, the pro mechanics at Northwest Auto & Diesel have provided quick smog testing and cost-effective smog repairs when needed. Start a maintenance service plan with Northwest Auto & Diesel that can help prevent high-cost repairs to your emission system. We are professional, honest, and friendly. For 5 star, cost conscious smog testing and repair services call Northwest Auto & Diesel at 281-893-2886 to schedule an appointment today or stop by our location at 15511 Kuykendahl Road in Houston, TX, 77090.

What Does Northwest Auto & Diesel Do During a Smog Check?
We inspect your car or truck's emissions-control equipment to measure the number of pollutants your vehicle is emitting.

First, Northwest Auto & Diesel will analyze your car or truck's OBD computer system, emissions-control system, and check engine light codes for standard warnings that your emissions system is no longer functioning properly.

Next, Northwest Auto & Diesel will inspect your car or truck's gas cap, ignition timing, exhaust gas recirculation system, fuel, and evaporative system.

Finally, Northwest Auto & Diesel will perform a Tailpipe Emissions Inspection which measures the type and quantity of any pollutant emitted from your vehicle's tailpipe.

Did You Pass Your Smog Test?
Great! If your vehicle passes a smog check, Northwest Auto & Diesel will provide you a vehicle inspection report showing your vehicle's results and will electronically send the smog certificate to DMV.

Smog Check: Testing and Repairs
Smog Testing vs. Emissions Testing