The engine block water passages are a critical part of your car’s engine. They allow the air and oil to move freely and prevent build-up in the engine. To clean these passages, you will need to remove the block, clean it, and then re-install it.

  1. Remove the cover from the engine block. This will expose the water passages.
  2. Clean the passages with a mild soap and water solution. Be sure to use enough soap to cover all of the area being cleaned.
  3. Re-install the cover and re-attach the bolts securely.