DeVille DTS V8-4.6L VIN 9 (2002)
14.
Install the four nuts securing the catalytic converter to the rear exhaust manifold pipe.
15.
Install the 2 bolts securing the center exhaust hangers to the rear suspension support brackets.
Tighten
a. Tighten the catalytic converter nuts in a crisscross pattern to 25 Nm (18 lb ft).
b. Tighten the center exhaust hanger bolts to 30 Nm (22 lb ft).
Important:
Ensure the catalytic converter outlet pipe is fully seated against the heated oxygen sensor boss.
16.
Install two exhaust clamps, P/N 15992529, on the converter pipe with the two clamp ends 180 degrees from each other. Each set of clamp nuts
should face opposite directions for proper sealing.
Tighten
Tighten the service clamp nuts to 30 N.m (22 lb ft),
17.
Remove the adjustable jack stand.
18.
Lower the vehicle and inspect for exhaust leaks.
Parts Information
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use the table.
