How do you remove and install the intake manifold covers and manifolds in 3.2L V6 engine on Cadillac CTS?

To remove the intake manifold covers, first disengage the locking tab on the oil filler spout with a small screwdriver and rotate it counterclockwise to remove. Next, disconnect the brake booster vacuum hose and vacuum lines from the fittings, followed by the electrical connectors for the Camshaft Position (CMP) sensor and the left knock sensor. Remove the power steering fluid reservoir mounting bracket fasteners and set the reservoir and bracket aside. Disconnect the electrical connector and vacuum hose from the switching valve at the rear of the plenum, then lift and remove the intake manifold cover, with installation being the reverse of removal. For the right side, relieve the fuel system pressure, disconnect and remove the fuel lines to the fuel rail, and disconnect the quick-disconnect fitting to the EVAP hose. Disconnect the wiring harness fasteners mounting the harness to the Engine Control Module (ECM) bracket, disconnect the cable from the negative battery terminal, and remove the after run coolant pump-to-ECM mounting bracket fasteners, setting the pump aside. Disconnect and remove the ECM, then remove the ECM bracket mounting fasteners from the intake plenum and cylinder head before lifting and removing the intake manifold cover, with installation being the reverse of removal. For the upper intake manifold, first remove the intake manifold covers if equipped, relieve the fuel system pressure, disconnect the cable from the negative battery terminal, and remove the intake plenum. Disconnect and remove the fuel lines to the fuel rail, disconnect the quick-disconnect fitting to the EVAP hose, disconnect the fuel injector's electrical connectors from the main engine harness, and disconnect the vent tube from the fuel pressure regulator. If replacing the upper intake manifold, remove the fuel rail from the manifold. The intake manifold is secured with six bolts along its base; remove these bolts and pull the intake manifold and fuel rail away from the engine. When installing, use new manifold gaskets and tighten the bolts in several stages, working from the center out to the specified torque, with installation otherwise being the reverse of removal. For the lower intake manifold, first remove the upper intake manifold, then remove the lower intake manifold-to-cylinder head bolts and take the manifold off the cylinder heads. For installation, use new manifold gaskets and tighten the bolts in several stages, working from the center out to the specified torque, with installation otherwise being the reverse of removal.

Genuine Cadillac CTS Intake Manifold

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16 Intake Manifolds found

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Cadillac CTS Manifold Assembly, Upper Intake
Part Number: 12642700
$273.68 MSRP: $476.23
You Save: $202.55 (43%)
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Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold; Intake Manifold, Intake Plenum
- Position: Upper
- Replaces: 12635448
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2015 Cadillac CTS | 2 DOOR COUPE, 4 DOOR, 4 DOOR (RHD), 4 DOOR PERFORMANCE SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN, 4 DOOR SEDAN(RHD), 4 DOOR STATION WAGON, 4 DOOR STATION WAGON(RHD), 4 DOOR WAGON, 4 DOOR WAGON(RHD) | 6 Cyl 3.0L, 6 Cyl 3.6L
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Cadillac CTS Manifold, Intake
Part Number: 12631023
$231.18 MSRP: $368.62
You Save: $137.44 (38%)
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Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold; Intake Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN | 4 Cyl 2.0L
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Cadillac CTS Manifold, Intake
Part Number: 12659015
$208.69 MSRP: $518.89
You Save: $310.20 (60%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold; Intake Manifold
- Replaces: 12647953
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Cadillac CTS | 4 DOOR PREMIUM SEDAN | 6 Cyl 3.6L
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Cadillac CTS Manifold, Intake
Part Number: 12674143
$143.17 MSRP: $236.89
You Save: $93.72 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Intake Manifold
- Replaces: 12645755
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN | 6 Cyl 3.6L
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Cadillac CTS Manifold, Lower Intake (Machine)
Part Number: 12611155
$295.20 MSRP: $488.60
You Save: $193.40 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold; Intake Manifold
- Position: Lower
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2015 Cadillac CTS | 2 DOOR COUPE, 4 DOOR, 4 DOOR (RHD), 4 DOOR PERFORMANCE SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN, 4 DOOR SEDAN(RHD), 4 DOOR STATION WAGON, 4 DOOR STATION WAGON(RHD), 4 DOOR WAGON, 4 DOOR WAGON(RHD) | 6 Cyl 3.0L, 6 Cyl 3.6L
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Cadillac CTS Manifold Assembly, Int
Part Number: 12701996
$2873.53 MSRP: $4561.24
You Save: $1687.71 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Intake Manifold, Supercharger
- Replaces: 12677538, 12666990, 12686470
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | 4 DOOR V-SERIES SEDAN | 8 Cyl 6.2L
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Cadillac CTS MANIFOLD-LWR INT
Part Number: 12705324
$4019.05 MSRP: $6379.57
You Save: $2360.52 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2009 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 2.8L, 6 Cyl 3.6L
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Cadillac CTS Manifold, Lower,Intake Kruemmer, Unten
Part Number: 90412612
$180.49 MSRP: $242.03
You Save: $61.54 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold
- Position: Lower
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Cadillac CTS | 4 DOOR, 4 DOOR(RHD), V 4 DOOR
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Cadillac CTS Manifold, Lower,Intake Kruemmer, Unten
Part Number: 90411882
Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold; Intake Manifold
- Position: Lower
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 3.2L
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Cadillac CTS Manifold, Intake (Machine)
Part Number: 12595765
$266.24 MSRP: $420.63
You Save: $154.39 (37%)
Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold; Intake Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2011 Cadillac CTS | 2 DOOR COUPE, 4 DOOR, 4 DOOR (RHD), 4 DOOR RHD, 4 DOOR SEDAN, 4 DOOR SEDAN(RHD), 4 DOOR STATION WAGON, 4 DOOR STATION WAGON(RHD), 4 DOOR WAGON, 4 DOOR WAGON(RHD) | 6 Cyl 3.6L
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Cadillac CTS Manifold, Upper Intake (Machine)
Part Number: 12597853
Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold; Intake Plenum
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Cadillac CTS | 4 DOOR, 4 DOOR RHD | 6 Cyl 3.6L
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Cadillac CTS Manifold Assembly, Upper Intake
Part Number: 24407506
Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold; Intake Plenum
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 3.2L
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Cadillac CTS Manifold, Upper Intake
Part Number: 12587556
Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold; Intake Plenum
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 2.8L, 6 Cyl 3.6L
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Cadillac CTS MANIFOLD,LWR INT
Part Number: 19371505
Product Specifications
- Other Name: Intake Manifold
- Replaces: 12571079, 92068635
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2009 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 2.8L, 6 Cyl 3.6L
View related parts
Cadillac CTS Manifold Asm,Intake (Service)
Part Number: 88894339
Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold; Intake Manifold, Manifold
- Replaces: 88890523
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Cadillac CTS | V 4 DOOR | 8 Cyl 5.7L
View related parts
Cadillac CTS Manifold Asm,Intake (Service)
Part Number: 89017648
Product Specifications
- Other Name: MANIFOLD, Engine Fuel Intake Manifold; Intake Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2007 Cadillac CTS | V 4 DOOR | 8 Cyl 6.0L

Cadillac CTS Intake Manifold

Intake Manifold engages the responsibility of delivering the air or a mixture of air and fuel to each cylinder of Cadillac CTS vehicle thus dictate the engine performance and power. This is done by various designs, some of which are the variable length intake manifolds (VLIM), various design features such as the intake manifold aerodynamics: the venturi theory, oscillating resonators & Helmholtz resonators. In the Cadillac CTS's early models, manufacturers utilized AL aluminum or cast iron while in the recent ones, the more common material used is the lightweight composite plastics. The intake manifold is also designed to have sensors, temperature and airflow to ensure better performance of the car's engine. All together, the Cadillac CTS intake manifold plays an important role of enhancing the performance of the car engine in the delivery of power.

Each OEM Cadillac CTS Intake 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.

Cadillac CTS Intake Manifold Parts Questions & Experts Answers

Manifold, Lower Intake (Machine)
12611155
Q: How do you remove and install the intake manifold covers and manifolds in 3.2L V6 engine on Cadillac CTS?
A: To remove the intake manifold covers, first disengage the locking tab on the oil filler spout with a small screwdriver and rotate it counterclockwise to remove. Next, disconnect the brake booster vacuum hose and vacuum lines from the fittings, followed by the electrical connectors for the Camshaft Position (CMP) sensor and the left knock sensor. Remove the power steering fluid reservoir mounting bracket fasteners and set the reservoir and bracket aside. Disconnect the electrical connector and vacuum hose from the switching valve at the rear of the plenum, then lift and remove the intake manifold cover, with installation being the reverse of removal. For the right side, relieve the fuel system pressure, disconnect and remove the fuel lines to the fuel rail, and disconnect the quick-disconnect fitting to the EVAP hose. Disconnect the wiring harness fasteners mounting the harness to the Engine Control Module (ECM) bracket, disconnect the cable from the negative battery terminal, and remove the after run coolant pump-to-ECM mounting bracket fasteners, setting the pump aside. Disconnect and remove the ECM, then remove the ECM bracket mounting fasteners from the intake plenum and cylinder head before lifting and removing the intake manifold cover, with installation being the reverse of removal. For the upper intake manifold, first remove the intake manifold covers if equipped, relieve the fuel system pressure, disconnect the cable from the negative battery terminal, and remove the intake plenum. Disconnect and remove the fuel lines to the fuel rail, disconnect the quick-disconnect fitting to the EVAP hose, disconnect the fuel injector's electrical connectors from the main engine harness, and disconnect the vent tube from the fuel pressure regulator. If replacing the upper intake manifold, remove the fuel rail from the manifold. The intake manifold is secured with six bolts along its base; remove these bolts and pull the intake manifold and fuel rail away from the engine. When installing, use new manifold gaskets and tighten the bolts in several stages, working from the center out to the specified torque, with installation otherwise being the reverse of removal. For the lower intake manifold, first remove the upper intake manifold, then remove the lower intake manifold-to-cylinder head bolts and take the manifold off the cylinder heads. For installation, use new manifold gaskets and tighten the bolts in several stages, working from the center out to the specified torque, with installation otherwise being the reverse of removal.

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