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800 Michigan Street NE Grand Rapids, MI, 49503
  • MON: 8:00AM - 5:30PM
  • TUES: 8:00AM - 5:30PM
  • WED: 8:00AM - 5:30PM
  • THUR: 8:00AM - 5:30PM
  • FRI: 8:00AM - 5:30PM
  • SAT: Closed
  • SUN: Closed
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4411 Alpine Ave NW Comstock Park, MI, 49321
  • MON: 8:00AM - 5:30PM
  • TUES: 8:00AM - 5:30PM
  • WED: 8:00AM - 5:30PM
  • THUR: 8:00AM - 5:30PM
  • FRI: 8:00AM - 5:30PM
  • SAT: 8:00AM - 3:00PM
  • SUN: Closed
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Did Your Vehicle Fail the Smog Test?

Smog Test Repair

That's okay, you are in good hands at Lentz Auto Repair. We will complete any needed repairs and reinspect your vehicle.

The 4 Most Common Smog Check Repairs:

Bad O2 Sensor Replacement

If your oxygen sensor malfunctions it cannot properly monitor the exhaust and may cause overheating and loss of engine power and the release of toxic emissions. Lentz Auto Repair in Grand Rapids can help you replace your O2 sensor quickly and get you back on the road fast.

Bad Fuel Metering Adjustment

Proper air-fuel measurement prior to mixing is necessary for a smooth-running engine. Most drivers discover their vehicles has a fuel metering problem when the "Check Engine Light" is displayed. We have state of the art computer programs that identify the exact check engine light diagnostic code and quickly complete the appropriate repairs.

Rich Fuel Mixture Adjustment

Our shop can help you determine if your vehicle is putting out high levels of carbon monoxide due to a lack of oxygen in the combustion cycle. This can happen because of a faulty MAF sensor or oxygen sensor or because of leaking fuel injectors.

Faulty EVAP System Part Replacement

EVAP (Evaporative Emission Control System) problems occur when your vehicle is leaking gasoline vapors into the air. Our expert technicians can repair troublesome leaks or cracks in your vehicle's vacuum hoses, seals or gas cap.

Worried About the Cost of Smog Check Repairs?

  • Apply for Consumer Assistance, this is a program offering income-eligible consumers assistance toward emissions-related repairs at STAR test-and-repair stations if their vehicle fails its biennial Smog Check inspection.
  • Talk to the pro mechanics at Lentz Auto Repair about starting a maintenance plan. Regular maintenance can reduce smog check failures and high-cost auto repairs in the future.

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WHAT OUR CUSTOMERS SAY

Excellent service! They gave me a free estimate the same day I called, had the part in stock the next day. With some creativity, they managed to just replace the defective part of my exhaust instead of the hold system, saving me half of what the dealer wanted! These folks know how to get the job done, and you can be sure I will be back! Great work! , 05/03/2024

Lentz Auto Repair

Lentz Auto Repair - Grand Rapids 800 Michigan Street NE Grand Rapids, MI 49503 616-742-0800
Lentz Auto Repair - Comstock Park 4411 Alpine Ave NW Comstock Park, MI 49321 616-784-4422

Ask any car or truck owner in Grand Rapids who they recommend. Chances are they will tell you Lentz Auto Repair.