Roadmaster V8-305 5.0L (1992)
Exhaust Pipe/Muffler Hanger: Technical Service Bulletins
Exhaust - Moan/Boom
Bulletin: 93-6-11
Date: March '93
Ref. No.: 93-106-6
Corp. Ref. No.: 336601
SUBJECT:
EXHAUST MOAN/BOOM (INSTALL NEW MUFFLER HANGER ASSEMBLY)
MODELS AFFECTED:
1992-93 ROADMASTER
CONDITION:
Some 1992-93 Roadmasters may exhibit a slight exhaust moan/boom condition, most apparent during light acceleration from 45-55 mph with
transmission in fourth gear and torque converter clutch (TCC) applied.
CAUSE:
Exhaust generated pulsations transmitted into vehicle underbody through the exhaust system hangers.
CORRECTION:
Replace existing muffler hanger assembly with new assembly P/N 10228003. Follow applicable Service Manual Procedures and those noted in
illustration to insure proper installation and system alignment. Torque hanger/frame bolt to 24 N-m (17 lb.ft.) and hanger clamp to 33 N-m (24 lb.ft.).
WARRANTY INFORMATION:
Labor Operation: T3301
Labor Time: 0.6 Hr.
PART AVAILABILITY:
Parts are currently available from GMSPO.