Change Car Rear Silencer Cadillac CTS

Change Car Rear Silencer

Easy 1h30 ~150$
Time Estimate 1h30
Cost Estimate ~150$
Difficulty Easy
Vehicles
CTS 2003-2007 4
  • 2.8 V6 Gas (LP1)
  • 3.2 V6 Gas (LA3)
  • 3.6 V6 Gas (LY7)
  • 5.7 V8 Gas (LS6)
CTS 2008-2013 3
  • 3.6 V6 Bioethanol (E85),Gas (LFX)
  • 3.6 V6 Gas (LLT)
  • 6.2 V8 Gas (LSA)
CTS 2014-2019 1
  • 2.0 Turbo Gas (LTG)
Repair the silencer* 1h30
Repair the front silencer* 1h30
Align the front silencer* 0h30
Repair the main silencer 0h30
Align the main silencer* 0h30
Difficult main silencer removal* 0h30
Repair the rear silencer 0h30
Weld a sheet-metal repair panel onto the rear silencer* 0h30–0h45
Difficult rear silencer removal* 0h30
Align the main silencer 0h30

What is a Cadillac CTS rear silencer?

The rear silencer (also called the back box or rear muffler) reduces exhaust noise to an acceptable level. It is located at the end of the exhaust line, after the catalytic converter, particulate filter (if fitted), and sometimes an intermediate silencer.

When should you change the Cadillac CTS rear silencer?

No periodic replacement interval is specified. Carry out regular visual inspections for corrosion, holes, and deteriorated mounting rubbers. Signs that replacement is needed: louder exhaust noise, rattling from loose baffles, visible rust holes, exhaust fumes entering the cabin, or failure at the MOT/roadworthiness test.

Is it difficult to change the Cadillac CTS rear silencer?

Difficulty level 2/5: technically easy but may require effort if bolts and clamps are rusted. Key steps: raise the vehicle, apply penetrating oil to clamp bolts, remove the clamp connecting the silencer to the intermediate pipe, remove the mounting rubber hangers, fit the new silencer with new gasket/clamp, reattach mounting rubbers, check for leaks with engine running.

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Maintenance plans for your CTS →

3 generations covered

Generation Years Vehicles Fuel
CTS 2003-2007 2003-2007 2.8 V6 Gas (LP1), 3.2 V6 Gas (LA3), 3.6 V6 Gas (LY7), 5.7 V8 Gas (LS6), 6.0 Gas (LS2) Gas
CTS 2008-2013 2008-2013 3.0 V6 Gas (LF1), 3.0 V6 Gas (LFW), 3.6 V6 Bioethanol (E85),Gas (LFX), 3.6 V6 Gas (LLT), 3.6 V6 Gas (LY7), 6.2 V8 Gas (LSA) Bioethanol (E85), Gas
CTS 2014-2019 2014-2019 2.0 Turbo Gas (LTG), 3.6 V6 Bi-Turbo Gas (LF3), 3.6 V6 Gas (LFX), 6.2 V8 Gas (LSA) Gas

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