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2018
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Transmission Slipping or Hard Shifting

Expert diagnosis and repair solutions for 2018 Chevrolet Silverado Transmission Slipping or Hard Shifting. Get step-by-step fixes, cost estimates, and professional advice.

Expert Repair Solutions

1
easy$100-$150
Check and replace low or dirty transmission fluid.
Source: https://www.applegatechev.com/blog/7-common-transmission-issues-in-the-chevy-silverado-and-how-to-prevent-them/

Repair Steps:

  1. Warm up the vehicle to normal operating temperature.
  2. Check the transmission fluid level and condition.
  3. Drain old fluid and replace it with new, manufacturer-recommended fluid.
  4. Replace the transmission filter if necessary.
2
hard$800-$1200
Inspect and replace worn clutch packs.
Source: https://www.justanswer.com/transmissions/ltesm-truck-transmission-started-slipping-2018.html

Repair Steps:

  1. Remove the transmission from the vehicle.
  2. Disassemble the transmission to access the clutch packs.
  3. Inspect the clutch packs for wear and replace them if necessary.
  4. Reassemble the transmission and reinstall it in the vehicle.
3
medium$300-$500
Test and replace faulty solenoids.
Source: https://www.justanswer.com/transmissions/ltesm-truck-transmission-started-slipping-2018.html

Repair Steps:

  1. Use a diagnostic tool to check for solenoid-related error codes.
  2. Identify the faulty solenoid(s) based on diagnostic results.
  3. Access the transmission valve body and replace the faulty solenoid(s).
  4. Clear any error codes and test drive the vehicle to ensure proper shifting.
4
medium$200-$400
Check and clean or replace the MAF and TPS sensors.
Source: https://www.silveradosierra.com/threads/tranmission-issues-6-speed-18-silverado-5-3.754594/

Repair Steps:

  1. Locate the MAF and TPS sensors in the engine bay.
  2. Disconnect the sensors and inspect for dirt or damage.
  3. Clean the sensors with appropriate cleaner or replace them if faulty.
  4. Reconnect the sensors and test drive the vehicle to ensure proper function.

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