How to remove and install an exhaust manifold?

Disconnect the cable from the negative battery terminal. On turbocharged models, remove the turbocharger. If not already done, remove the exhaust manifold heat shield. Raise the vehicle and support it on jackstands. If equipped, remove the engine block heater. Detach the exhaust pipe from the manifold. Soak the exhaust pipe retaining nuts with penetrating oil, then remove them. Follow the lead from the oxygen sensor up to its electrical connector, then unplug the connector. Also detach the lead from its retaining clip. Remove the exhaust manifold mounting nuts and detach the manifold from the cylinder head. Using a scraper, thoroughly clean the mating surfaces on the cylinder head, manifold and exhaust pipe. Remove the residue with a solvent such as acetone or lacquer thinner. Check that the mating surfaces are perfectly flat and not damaged in any way. A warped or damaged manifold may require machining or, if severe enough, replacement. Install the new gasket to the cylinder head studs and place the manifold on the cylinder head. Tighten the nuts evenly, working from the center outwards, to the torque. Connect the exhaust pipe to the manifold and tighten the nuts evenly to the torque. The remainder of installation is the reverse of the removal steps. Reconnect the battery. Run the engine and check for exhaust leaks.

Genuine Chevrolet HHR Exhaust Manifold

Engine Exhaust Manifold

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6 Exhaust Manifolds found

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Chevrolet HHR Engine Exhaust Manifold
Part Number: 12603792
$60.09 MSRP: $125.49
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Product Specifications
- Other Name: Manifold,Exhaust; Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008 Chevrolet HHR | 5 DOOR HIGH ROOF HATCHBACK, 5 DOOR HIGH ROOF HATCHBACK SS, 5 DOOR HIGH ROOF PANEL, 5 DOOR UPLEVEL HIGH ROOF HATCHBACK, 5 DOOR UPLEVEL HIGH ROOF PANEL | 4 Cyl 2.4L
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Chevrolet HHR Engine Exhaust Manifold
Part Number: 12581284
Product Specifications
- Other Name: Manifold, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2008 Chevrolet HHR | 5 DOOR HIGH ROOF HATCHBACK, 5 DOOR HIGH ROOF HATCHBACK SS, 5 DOOR HIGH ROOF PANEL, 5 DOOR UPLEVEL HIGH ROOF HATCHBACK, 5 DOOR UPLEVEL HIGH ROOF PANEL | 4 Cyl 2.4L
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Chevrolet HHR Engine Exhaust Manifold Assembly
Part Number: 90537679
Product Specifications
- Other Name: Manifold Asm,Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Chevrolet HHR | 5 DOOR HIGH ROOF HATCHBACK, 5 DOOR UPLEVEL HIGH ROOF HATCHBACK | 4 Cyl 2.2L
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Chevrolet HHR Engine Exhaust Manifold
Part Number: 12607724
Product Specifications
- Other Name: Manifold, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 Chevrolet HHR | 5 DOOR HIGH ROOF HATCHBACK, 5 DOOR HIGH ROOF HATCHBACK SS, 5 DOOR HIGH ROOF PANEL, 5 DOOR HIGH ROOF PANEL SS, 5 DOOR UPLEVEL HIGH ROOF HATCHBACK, 5 DOOR UPLEVEL HIGH ROOF PANEL | 4 Cyl 2.2L Flex, 4 Cyl 2.4L
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Chevrolet HHR Engine Exhaust Manifold
Part Number: 12606689
Product Specifications
- Other Name: Manifold, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 Chevrolet HHR | 5 DOOR HIGH ROOF HATCHBACK, 5 DOOR HIGH ROOF HATCHBACK SS, 5 DOOR HIGH ROOF PANEL, 5 DOOR UPLEVEL HIGH ROOF HATCHBACK, 5 DOOR UPLEVEL HIGH ROOF PANEL | 4 Cyl 2.2L
View related parts
Chevrolet HHR Engine Exhaust Manifold
Part Number: 12602397
Product Specifications
- Other Name: Manifold, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2010 Chevrolet HHR | 5 DOOR HIGH ROOF HATCHBACK SS, 5 DOOR HIGH ROOF PANEL SS | 4 Cyl 2.0L

Chevrolet HHR Exhaust Manifold

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.

Each OEM Chevrolet HHR Exhaust Manifold we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet HHR Exhaust Manifold Parts Questions & Experts Answers

Engine Exhaust Manifold
12603792
Q: How to remove and install an exhaust manifold?
A: Disconnect the cable from the negative battery terminal. On turbocharged models, remove the Turbocharger. If not already done, remove the exhaust manifold heat shield. Raise the vehicle and support it on jackstands. If equipped, remove the engine block heater. Detach the exhaust pipe from the manifold. Soak the exhaust pipe retaining nuts with penetrating oil, then remove them. Follow the lead from the oxygen sensor up to its electrical connector, then unplug the connector. Also detach the lead from its retaining clip. Remove the exhaust manifold mounting nuts and detach the manifold from the Cylinder Head. Using a scraper, thoroughly clean the mating surfaces on the cylinder head, manifold and exhaust pipe. Remove the residue with a solvent such as acetone or lacquer thinner. Check that the mating surfaces are perfectly flat and not damaged in any way. A warped or damaged manifold may require machining or, if severe enough, replacement. Install the new gasket to the cylinder head studs and place the manifold on the cylinder head. Tighten the nuts evenly, working from the center outwards, to the torque. Connect the exhaust pipe to the manifold and tighten the nuts evenly to the torque. The remainder of installation is the reverse of the removal steps. Reconnect the battery. Run the engine and check for exhaust leaks.