How to replace the muffler on Buick Rainier?

First you must lift off and support the automobile properly before lifting. It is important not to reuse any components that have been oxidized, damaged, or in any way compromised. For the vehicle with the ll8 engine, purchase the resonator and Tail Pipe because they are likely to be replaced together, typically fixed using a clamp. Check the exhaust system parts for reusability. Pull out and remove the nuts on the left and right sides that hold the support that the Muffler is connected to the Catalytic Converter pipe. Isolate the Muffler and tailpipe assembly from the hanger insulators and lower the assembly. Support the exhaust system then cut the Exhaust Pipe at the line designated and take away the Muffler from the pipe in the tail. For installation, connect the new Muffler to the tailpipe and fasten it to hanger insulators. Mount the Muffler to the Catalytic Converter and tighten the nuts to 45 nm (33 ft. Lbs.). Loosely put in the clamp in order to hold the Muffler onto the tailpipe, align the tailpipe properly and tighten the clamp nuts with a torque of 50 nm (37 ft. Lbs). Lastly, check for leaks in the exhaust system and for underbody contact, replace the frame brace and lower the vehicle.

OEM Buick Rainier Muffler

Exhaust Muffler

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Buick Rainier Muffler W/Tpipe Part Number: 25887916
$746.18 MSRP: $1120.61
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Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2007 Buick Rainier | CXL | 6 Cyl 4.2 L GAS
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Buick Rainier Muffler W/Tpipe Part Number: 15175774
Product Specifications
- Other Name: Muffler, Exhaust; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Buick Rainier | CXL, CXL Plus | 8 Cyl 5.3 L GAS
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Buick Rainier Muffler W/Tpipe Part Number: 25839181
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2007 Buick Rainier | CXL | 8 Cyl 5.3 L GAS
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Buick Rainier Muffler W/Tpipe Part Number: 12479984
Product Specifications
- Other Name: Muffler, Exhaust; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Buick Rainier | CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS

Buick Rainier Muffler

Want to cut long-term maintenance and repair costs? Choose OEM Muffler. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Buick Rainier parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Buick Rainier Muffler includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

The Muffler is an important part that accentuates the dependability and power of the Buick Rainier a middle of the line luxury sport utility vehicle manufactured from the year 2004 to the year 2007. When it comes to optimizing the freeway hum that express themselves through an automobile's exhaust pipes, few do it quite as well as the Muffler; a complex configuration of channels and compartments, it was developed to muffle the reverberations of the sound pressure created by the retired hot gases which motivated the stationary pistons. This is especially important in ensuring that loud and obnoxious noise and NH3 emission levels are well regulated and controlled, thus the efficiency of the Muffler. The Muffler works with different Rainier models, and its availability in the various shapes and configurations contributes to its reliability and strength as it offers a long lasting design being made out of stainless steel, or aluminized steel and more. The 4.2 Vortec I6 engines and a high-performance 5.3 L Small-block V8 powertrain are accompanied by the features of the Muffler that contributes to the efficiency of engines and minimization of back pressure. Besides, the Muffler has an added role of enabling the smooth running of the car as well as the desired ambient noise level suitable for the passengers. Based on its reliability, power, and safety components, Muffler reassures the Buick Rainier to be prominent in the automotive industry and equally guarantees to be a significant component in Buick Rainier engineering.

Buick Rainier Muffler Parts Questions & Experts Answers

Muffler W/Tpipe
25887916
Q: How to replace the muffler on Buick Rainier?
A:
First you must lift off and support the automobile properly before lifting. It is important not to reuse any components that have been oxidized, damaged, or in any way compromised. For the vehicle with the ll8 engine, purchase the resonator and Tail Pipe because they are likely to be replaced together, typically fixed using a clamp. Check the exhaust system parts for reusability. Pull out and remove the nuts on the left and right sides that hold the support that the Muffler is connected to the Catalytic Converter pipe. Isolate the Muffler and tailpipe assembly from the hanger insulators and lower the assembly. Support the exhaust system then cut the Exhaust Pipe at the line designated and take away the Muffler from the pipe in the tail. For installation, connect the new Muffler to the tailpipe and fasten it to hanger insulators. Mount the Muffler to the Catalytic Converter and tighten the nuts to 45 nm (33 ft. Lbs.). Loosely put in the clamp in order to hold the Muffler onto the tailpipe, align the tailpipe properly and tighten the clamp nuts with a torque of 50 nm (37 ft. Lbs). Lastly, check for leaks in the exhaust system and for underbody contact, replace the frame brace and lower the vehicle.