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HOMESERVICE MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 14 (ENGINE EXHAUST SYSTEM)REPAIR INSTRUCTIONSEXHAUST MANIFOLD REPLACEMENT (L4)
2013 Buick Regal Turbo Premium, Standard Trans

Exhaust Manifold Replacement (L4)

2013 Buick Regal Turbo Premium, Standard TransSECTION Exhaust Manifold Replacement (L4)
WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Exhaust Manifold (L4)
GM2316542Courtesy of GENERAL MOTORS CORP.
Callout Component Name

Preliminary procedures

  1. Remove the exhaust front pipe. Refer to Exhaust Front Pipe Replacement (L4)  or Exhaust Front Pipe Replacement (LDK or LHU) .
  2. Remove the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement (LAF) .
  3. Remove the exhaust manifold heated oxygen sensor. Refer to Heated Oxygen Sensor Replacement - Sensor 1 .
1 Exhaust Manifold Nut (Qty: 10)
CAUTION: Refer to Fastener Caution .

Tighten:  14 N.m (10 lb ft)
2 Exhaust Manifold Gasket
3 Exhaust Manifold

Procedure

  1. Remove and discard the exhaust manifold gasket.
  2. Clean any exhaust manifold gasket debris from the cylinder head and exhaust manifold.
  3. Install new exhaust manifold gasket.
  4. Tighten the exhaust manifold nuts working from the center out.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.