How to replace the exhaust manifold on Chevrolet HHR?

The Exhaust Manifold replacement process begins by removing the Exhaust Manifold heat shield followed by extraction of pre catalyst heated Oxygen Sensor (HO2S) and the Catalytic Converter. The team should discard Exhaust Manifold nuts before removing the Exhaust Manifold and its accompanied gasket for disposal. Before installing the new Exhaust Manifold Gasket on studs one should clean the engine block's sealing surface. The correct installation method consists of using new exhaust nuts which need to be adjusted in their specified order to 14 nm (10 ft. Lbs.). Propagate the original Catalytic Converter together with pre catalyst ho2s and secure it with the Exhaust Manifold heat shield.

OEM Chevrolet HHR Exhaust Manifold

Engine Exhaust Manifold

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6 Exhaust Manifolds found

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Chevrolet HHR Exhaust Manifold Part Number: 90537679
$164.90 MSRP: $333.96
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Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Chevrolet HHR | LS, LT | 4 Cyl 2.2 L GAS
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Chevrolet HHR Exhaust Manifold Part Number: 12603792
$79.04 MSRP: $125.49
You Save: $46.45 (38%)
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Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008 Chevrolet HHR | LT, LT Panel | 4 Cyl 2.4 L GAS
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Chevrolet HHR Exhaust Manifold Part Number: 12581284
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2008 Chevrolet HHR | LT, LT Panel | 4 Cyl 2.4 L GAS
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Chevrolet HHR Exhaust Manifold Part Number: 12607724
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 Chevrolet HHR | LS, LS Panel, LT, LT Panel | 4 Cyl 2.2 L FLEX, 4 Cyl 2.4 L FLEX
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Chevrolet HHR Exhaust Manifold Part Number: 12606689
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 Chevrolet HHR | LS, LS Panel, LT, LT Panel | 4 Cyl 2.2 L GAS
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Chevrolet HHR Exhaust Manifold Part Number: 12602397
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2010 Chevrolet HHR | SS, SS Panel | 4 Cyl 2.0 L GAS

Chevrolet HHR Exhaust Manifold

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Exhaust Manifold which is in Chevrolet HHR vehicles has a function of that directs the hot exhaust gases through the system to avoid backflow of the gases that compromises the performance of the engine. Located at the upper part of the exhaust system, manifold has intertwining tubes connected to the engine block. Different in design and material of construction, exhaust manifolds are useful for guiding the exhaust gases via the catalytic converter and the muffler so as not to expose the passengers to toxic elements. Headers are sort of manifolds that are used in cars and its function is to optimize the flow of air by decreasing the restriction and, therefore, increasing velocity of exhaust gasses. Also, extras like paint that comprises of ceramic and the wrapping of the exhaust also assists in controlling heat in the engine bay; additionally, systems such as Yamaha's EXUP which controls the back pressure dynamically for enhanced performance.

Chevrolet HHR Exhaust Manifold Parts and Q&A

Exhaust Manifold
12581284
Q: How to replace the exhaust manifold on Chevrolet HHR?
A:
The Exhaust Manifold replacement process begins by removing the Exhaust Manifold heat shield followed by extraction of pre catalyst heated Oxygen Sensor (HO2S) and the Catalytic Converter. The team should discard Exhaust Manifold nuts before removing the Exhaust Manifold and its accompanied gasket for disposal. Before installing the new Exhaust Manifold Gasket on studs one should clean the engine block's sealing surface. The correct installation method consists of using new exhaust nuts which need to be adjusted in their specified order to 14 nm (10 ft. Lbs.). Propagate the original Catalytic Converter together with pre catalyst ho2s and secure it with the Exhaust Manifold heat shield.