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616 Central Ave Northwood, IA, 50459
  • MON: 8:00AM - 5:00PM
  • TUES: 8:00AM - 5:00PM
  • WED: 8:00AM - 5:00PM
  • THUR: 8:00AM - 5:00PM
  • FRI: 8:00AM - 5:00PM
  • SAT: Closed
  • SUN: Closed
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8048th St North Northwood, IA, 50459
  • MON: 8:00AM - 5:00PM
  • TUES: 8:00AM - 5:00PM
  • WED: 8:00AM - 5:00PM
  • THUR: 8:00AM - 5:00PM
  • FRI: 8:00AM - 5:00PM
  • SAT: Closed
  • SUN: Closed
MORE >
  • Google Business Profile North Location
  • Facebook

Did Your Vehicle Fail the Smog Test?

Smog Test Repair

That's okay, you are in good hands at Knudtson Automotive Services. 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. Knudtson Automotive Services in Worth County 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?

associations

  • ASE (Automotive Service Excellence)
  • Auto Value - CSC
  • Hercules Tires
  • Wix Filters
  • Rim Guard Solutions


  • Car Care Aware
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WHAT OUR CUSTOMERS SAY

Pulled off the freeway the day after Christmas. Got immediate help to fix a tire to get me home. Excellent and friendly staff.

Knudtson Automotive Services

Knudtson Automotive Services - South 616 Central Ave Northwood, IA 50459 641-324-9988
Knudtson Automotive Services - North 8048th St North Northwood, IA 50459 641-324-2652

Ask any car or truck owner in Worth County who they recommend. Chances are they will tell you Knudtson Automotive Services.