How to replace a catalytic converter on Buick Terraza?

Start by supporting and raising the vehicle then remove the heated Oxygen Sensor electrical connector. First position the jackstand under the Muffler before removing Exhaust Manifold to Catalytic Converter nuts followed by Catalytic Converter to Muffler nuts. Separate the converter from its hanger position before removing the Catalytic Converter. Support the converter installation phase to avoid damaging the flexible coupling while keeping the assembly's rear vertical movement limited to 6 degrees. Connect new gaskets to the Muffler studs as well as the Exhaust Manifold studs before putting the Catalytic Converter into position. Feed the converter to both the hanger and Muffler studs before executing a pulling motion to slide it into position on the Exhaust Manifold studs. Ensure the Catalytic Converter remains tight against Muffler nuts before you apply torque to Exhaust Manifold nuts with 35 n.m (26 lb ft) force then install 34 n.m (25 lb ft) torque on Catalytic Converter Muffler nuts. After removing the jackstand under the Muffler you should reconnect the ho2s electrical connector before lowering the vehicle.

OEM Buick Terraza Catalytic Converter

Cat. Converter

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Buick Terraza Catalytic Converter Part Number: 15180206
$945.33 MSRP: $1406.80
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Product Specifications
- Other Name: Converter, Catalytic Converter; Exhaust Pipe; Converter & Pipe; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 Buick Terraza | CX, CXL | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L GAS
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Buick Terraza Catalytic Converter Part Number: 25817493
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 Buick Terraza | CX, CXL | 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Buick Terraza Catalytic Converter Part Number: 15811949
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 15111836
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2007 Buick Terraza | CX, CXL | 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Buick Terraza Catalytic Converter Part Number: 15180207
Product Specifications
- Other Name: Converter, Catalytic Converter; Exhaust Pipe; Converter & Pipe; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 Buick Terraza | CX, CXL | 6 Cyl 3.5 L GAS

Buick Terraza Catalytic Converter

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Catalytic Converter is one of the critical parts of the emissions system in Buick new generation of minivans that is expected to change some lethal gases including Carbon Monoxide, Hydrocarbons and Oxides of Nitrogen to harmless substances including water and Carbon Dioxide. As a result of its dependability and efficiency, the Catalytic Converter incorporates catalysts such as platinum, palladium, and rhodium; hence, promoting effective chemical reactions that boost the engine performance besides reducing backpressure. Designed for diverse Terraza models manufactured in 2005, 2006, and 2007 the Catalytic Converter is the key to adhering to emission standards that enhance environmental protection. The characteristics that make Buick Terraza unique in the automotive market are the combination of the luxury liner design and feature with durability of the car's Catalytic Converter. Specifically, the options for the direct fit of your Catalytic Converter are fully realized, so vehicle owners may enjoy their minivan's performance to the fullest without complications. Moreover, the safety factor is exemplified by the Terraza's crash test rating, along with side airbags and antilock brakes boosting up the performance of its Catalytic Converter. In conclusion, the introduction of Buick Terraza catalytic converter not only pride the Buick Terraza for being a reliable and performing vehicle, but it assists the efficiency as well as safety of the Buick Terraza in an enormous way hence making it a must-have for every owner.

Buick Terraza Catalytic Converter Parts Questions & Experts Answers

Catalytic Converter
25817493
Q: How to replace a catalytic converter on Buick Terraza?
A:
Start by supporting and raising the vehicle then remove the heated Oxygen Sensor electrical connector. First position the jackstand under the Muffler before removing Exhaust Manifold to Catalytic Converter nuts followed by Catalytic Converter to Muffler nuts. Separate the converter from its hanger position before removing the Catalytic Converter. Support the converter installation phase to avoid damaging the flexible coupling while keeping the assembly's rear vertical movement limited to 6 degrees. Connect new gaskets to the Muffler studs as well as the Exhaust Manifold studs before putting the Catalytic Converter into position. Feed the converter to both the hanger and Muffler studs before executing a pulling motion to slide it into position on the Exhaust Manifold studs. Ensure the Catalytic Converter remains tight against Muffler nuts before you apply torque to Exhaust Manifold nuts with 35 n.m (26 lb ft) force then install 34 n.m (25 lb ft) torque on Catalytic Converter Muffler nuts. After removing the jackstand under the Muffler you should reconnect the ho2s electrical connector before lowering the vehicle.