GM Service Manual Online
For 1990-2009 cars only

All male pipe threads not having pre-applied pipe sealant (burnt orange in color) and those parts with male pipe threads with pre-applied sealant that have been assembled and disassembled a maximum of five times must have pipe sealant applied before assembly.

  1. Clean the threads.
  2. Remove all grease and oil with a clean cloth.

  3. Inspect the threads for damage.
  4. If the threads are damaged, replace the part.

    Important: The pipe thread sealant is not permissible on any internal diameters.

  5. Apply the pipe sealant with Teflon® GM P/N 12346004 or equivalent to the first few threads.