How to replace the ignition coil on 2005 Buick Terraza?

In order to change the ignition coil, unconnect the intake manifold to the brake booster vacuum hose. Record the location of spark plug wires, disconnected them to the ignition coil and module assembly. Take out the screws that hold the assembly together, and then replace it and replace the vacuum hose and spark plug wires.

OEM 2005 Buick Terraza Ignition Coil

Ignition Coil Resistor

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2005 Buick Terraza Ignition Coil Part Number: 19432144
$104.03 MSRP: $185.76
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Product Specifications
- Other Name: Coil Assembly, Ignition; Ignition Module; Coil, Ignition Coil
- Replaces: 12587153, 12595088, 12568185
- Condition: New
- SKU: 19432144
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2005 Buick Terraza Submodels:
- CX, CXL | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS

2005 Buick Terraza Ignition Coil

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2005 Buick Terraza Ignition Coil Parts and Q&A

Q: How to replace the ignition coil on 2005 Buick Terraza?
A: In order to change the ignition coil, unconnect the intake manifold to the brake booster vacuum hose. Record the location of spark plug wires, disconnected them to the ignition coil and module assembly. Take out the screws that hold the assembly together, and then replace it and replace the vacuum hose and spark plug wires.