Hyundai Elantra: Intake And Exhaust System / Muffler
Components and components location
1. Front muffler
2. Catalytic converter & Center muffler
3. Rear muffler
| 4. Gasket
5. Hanger
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Repair procedures
Front Muffler
| 1. | Disconnect the battery negative terminal. |
| 2. | Disconnect the oxygen sensor connector (A). 
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| 3. | Remove the heat protector (A). Tightening torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
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| 4. | Remove the front muffler (A) after disconnecting the hanger. Tightening torque : 39.2 - 58.8 N.m (4.0 - 6.0 kgf.m, 28.9 - 43.4 lb-ft) |
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| 5. | Install in the reverse order of removal. | •
| When installing, replace with new gaskets. |
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Catalytic Converter & Center Muffler
| 1. | Remove the catalytic converter & center muffler. | (1) | Disconnect the hanger (A). |
| (2) | Remove the catalytic converter & center muffler (B). Tightening torque : 39.2 - 58.8 N.m (4.0 - 6.0 kgf.m, 28.9 - 43.4 lb-ft) |
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| 2. | Install in the reverse order of removal. | •
| When installing, replace with new gaskets. |
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Rear Muffler
| 1. | Remove the rear muffler. | (1) | Disconnect the hanger (A). |
| (2) | Remove the rear muffler (B). Tightening torque : 39.2 - 58.8 N.m (4.0 - 6.0 kgf.m, 28.9 - 43.4 lb-ft) |
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| 2. | Install in the reverse order of removal. | •
| When installing, replace with new gaskets. |
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Replacement procedure of center muffler using clamp
Under warranty : Replace the center muffler assembly.
Out of warranty : It is available to replace the center muffler as the procedure below.
| 1. | Check that the clamping part of the center muffler assembly is damaged or deformed. If the muffler is too corroded to clamp, replace the center muffler assembly. 
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| 2. | Remove the catalytic converter & center muffler. | (1) | Disconnect the hanger (A). |
| (2) | Remove the catalytic converter & center muffler (B). Tightening torque : 39.2 - 58.8 N.m (4.0 - 6.0 kgf.m, 28.9 - 43.4 lb-ft) |
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| 3. | Cut the center muffler as the instruction below. | –
| Cut the front dent of the muffler. 
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[A/S muffler] | –
| Cut the rear dent of the A/S muffler. 
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| •
| To prevent a leak, remove the rust on the clamping part or the burr on the cutting part. |
| •
| Cut the pipe vertically. |
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| •
| Pipe cutter available to cut the pipe vertically. |
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| 4. | Install the center muffler. | (1) | Install the catalytic converter (A) and the center muffler (B) for A/S by tightening the nuts lightly, not completely. 
| •
| When installing the muffler, replace the gasket with new one. |
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| (2) | Put the clamp (A) between the cutting part of each pipe and tighten the clamp lightly, not completely. 
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| (3) | Tighten the catalytic converter and the center muffler with specified torque. Tightening torque : 39.2 ~ 58.8 N.m (4.0 ~ 6.0 kgf.m, 28.9 ~ 43.4 lb-ft) |
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| (4) | Compare the gap between the tail pipe(or tail trim) and the rear bumper with the record measured before removing the center muffler assembly. | •
| If the tail pipe is installed differently compared to the initial position, the bumper might be damaged by the pipe heat or interfere between the tail pipe and the rear bumper. |
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| (5) | Do not tighten the clamp at a time. Tighten the clamp nuts to the specified torque, by turns. Tightening torque : 17.6 ~ 23.5 N.m (1.8 ~ 2.4 kgf.m, 13.0 ~ 17.4 lb-ft) |
| •
| Do not reuse the clamp that was tightened completely. It may cause leak to reuse the clamp that was tightened completely. |
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Repair procedures
Removal and Installation1.Disconnect the battery negative terminal.2.Remove the engine room under cover.(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")3...
Other information:
Special Service Tools
Tools
(Number and name)
Illustration
Use
Engine support fixture (Beam)09200-3N000Removal and installation of the transaxle.Used with the supporter (09200-2S100).Engine support fixture (Rear)09200-L1100Removal and installation of the transaxle.with the beam (SST No. : 092..
Opening the trunk
1. Make sure the shift lever is in P (Park,
for automatic transmission/Intelligent
variable transmission) or first gear or
R (Reverse, for manual transmission)
and set the parking brake.
2. Then do one of the following:
Hold down the trunk unlock button
located on your remote key or smart
key for more than 1 second.
Additionally, for vehicles equipped
with smart key..
Intercooler
