GM Service Manual Online
For 1990-2009 cars only

Rear Compartment Panel Replacement for Chevrolet Cavalier (CNG) 2000

CNG Tank Bracket and Access Hole Drilling Procedure

  1. Replace the rear compartment panel. Refer to Rear Floor Replacement in Collision Repair in the J Platform Service Manual.
  2. Measure and mark the rear compartment panel. Refer to View 3 in Form and Pierce Holes Description . Verify all measurements before drilling.
  3. Drill the sixteen holes (AA, BB, C, D, E, F, G, H, J, K, P, Q, R, V, X, Z) to 7.1 mm (9/32 in).
  4. Drill the eight holes (A, B, L, M, N, S, U, Y,) to 11.1 mm (7/16 in).
  5. Drill the one hole (AA) to 76.2 mm (3.0 in).
  6. Vacuum all metal chips from the trunk.
  7. Treat each hole with zinc-rich primer or the equivalent.