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2005
chevrolet silverado17 views

Check Engine Light On

Expert diagnosis and repair solutions for 2005 chevrolet silverado Check Engine Light On. Get step-by-step fixes, cost estimates, and professional advice.

Expert Repair Solutions

1
medium$150-$300
Replace the oxygen sensor to resolve issues with the engine running lean and triggering the CEL.
Source: https://www.gm-trucks.com/forums/topic/63230-05-silverado-check-engine-light-on-engine-running-rough/

Repair Steps:

  1. Locate the faulty oxygen sensor using an OBD-II scanner
  2. Purchase a compatible oxygen sensor for replacement
  3. Disconnect the battery to reset the vehicle's computer
  4. Remove the old sensor and install the new one
  5. Reconnect the battery and clear any stored codes
2
easy$10-$30
Inspect and replace the gas cap if it is loose or damaged, which is a common cause of CEL activation.
Source: https://www.genemesserchevrolet.com/what-caused-my-chevrolet-check-engine-light-to-turn-on/

Repair Steps:

  1. Check the gas cap for any visible damage or looseness
  2. Purchase a new gas cap if necessary
  3. Replace the gas cap and ensure it is tightly secured
  4. Drive the vehicle for a few miles to see if the CEL turns off
3
hardCovered under recall
Address potential fuel system leaks by inspecting and replacing faulty components as per recall 06V289000.
Source: Recall information from NHTSA

Repair Steps:

  1. Contact a Chevrolet dealer to verify if the vehicle is affected by the recall
  2. Schedule an appointment for inspection and repair
  3. The dealer will replace the engine fuel rail pulse damper retainer clip free of charge
4
hardCovered under recall
Inspect and repair any issues with the fuel rail crossover tube as per recall 04V376000.
Source: Recall information from NHTSA

Repair Steps:

  1. Verify recall status with a Chevrolet dealer
  2. Schedule a service appointment for inspection
  3. The dealer will inspect the fuel rail crossover tube and replace retainer screws if necessary
5
medium$100-$200
Resolve lean fuel trim codes (P0171/P0174) by addressing issues with the master cylinder O-ring as per TSB 612.
Source: Bulletin 612 from GM Tech Link

Repair Steps:

  1. Use an OBD-II scanner to confirm the presence of lean fuel trim codes
  2. Inspect the master cylinder O-ring for damage
  3. Replace the O-ring if necessary
  4. Clear the codes and test drive the vehicle to ensure the CEL does not return

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