exhaust

Exhaust Gasket - Rear

for 2012 Toyota Camry 2.5L I4 · FWD

Difficulty

Easy

Time

48 min

Tools

Steps

✓Fact-checked. Built from OLP's spec database, then independently fact-checked line by line with every correction applied. Master-tech sign-off by Chris Hackleman is queued. Cross-check torque values against the factory manual, and stop if anything looks unsafe. How our data is made.

This procedure covers replacement of the rear exhaust gasket (center pipe to rear muffler connection) on the 2012-2017 Toyota Camry 2.5L I4, requiring removal of exhaust hangers and flange separation.

Warnings

⚠️Allow exhaust system to cool completely before starting work. Exhaust components can remain hot enough to cause severe burns for over an hour after engine shutdown.

⚠Exhaust fasteners are prone to corrosion and may break during removal. Have replacement bolts available.

⚠Support vehicle on jack stands rated for the vehicle weight. Never work under a vehicle supported only by a jack.

Tools required

14mm wrenchEssential

14mm socket and ratchetEssential

10mm socket and ratchet

Penetrating oil (PB Blaster or equivalent)Essential

Torque wrench (10-60 Nm range)Essential

Jack and jack standsEssential

Wire brush

Anti-seize compoundEssential

Pry bar or large flathead screwdriver

Exhaust hanger removal tool or large pliers

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Parts

Rear exhaust gasket (donut gasket) × 1 — Use OEM specification
Exhaust flange bolts and nuts (if corroded) × 2 — M10 x 1.25 x 40mm

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Preparation

Park vehicle on level surface and allow exhaust system to cool completely (minimum 2 hours after operation)
Raise vehicle and secure on jack stands at manufacturer-specified lift points
Spray all exhaust flange bolts and hanger bolts with penetrating oil and allow to soak for 15-30 minutes
Inspect rear O2 sensor location - it is upstream of this connection and does not require removal for this job

Procedure

1
Remove heat shield if obstructing access
If a heat shield covers the rear flange connection, remove the retaining bolts using a 10mm socket. Set heat shield aside for reinstallation.
Torque spec
Heat Shield Bolts10 Nm (7 lb-ft)
2
Support rear muffler section
Position a jack or support stand under the rear muffler section to prevent it from dropping when hangers are released. Leave slight clearance to allow movement during disassembly.
3
Remove rear exhaust hanger
Locate the rubber hanger closest to the rear flange connection. Use exhaust hanger tool or pliers to separate the rubber hanger from its mounting bracket. Push the exhaust pipe forward slightly to create slack at the flange joint.
Torque spec
Hanger Bolts20 Nm (15 lb-ft)
4
Remove flange bolts
Using a 14mm wrench to hold the nut and 14mm socket on the bolt head, remove the two flange bolts connecting the center pipe to the rear muffler. If bolts are seized, apply additional penetrating oil and allow to soak, or apply heat with a torch if safe to do so. Work bolts back and forth if necessary.
⚠Bolts may break due to corrosion. If bolt breaks, the remaining stud must be drilled out or extracted from the flange.
5
Separate exhaust flange
With bolts removed, pull the center pipe and rear muffler sections apart to separate the flange connection. Use a pry bar if necessary to break the seal of the old gasket. The old donut gasket will remain on one of the pipes.
6
Remove old gasket and clean surfaces
Remove and discard the old donut gasket. Use a wire brush to thoroughly clean both flange surfaces, removing all carbon buildup, rust, and old gasket material. Surfaces must be clean and flat for proper sealing.
7
Install new gasket
Position the new donut gasket onto the center pipe flange. Ensure the gasket is oriented correctly with the tapered side facing the proper direction (typically the compressed ring faces the rear muffler inlet).
8
Reconnect exhaust sections
Align the rear muffler pipe with the center pipe, engaging the flange over the new gasket. Ensure proper alignment before installing bolts. The gasket should compress evenly when flanges are mated.
9
Install and torque flange bolts
Apply anti-seize compound to the threads of new or reused flange bolts. Insert bolts through the flange and hand-thread nuts. Tighten bolts in a cross pattern to the specified torque using a torque wrench.
Torque spec
Exhaust Flange Bolts45 Nm (33 lb-ft)
10
Reinstall exhaust hanger
Align the exhaust pipe with the rubber hanger mount and use pliers or hanger tool to stretch the rubber hanger over the bracket. Ensure the exhaust is properly positioned with adequate clearance from the underbody, fuel tank, and suspension components.
11
Reinstall heat shield
If heat shield was removed, position it back in place and install retaining bolts. Torque to specification.
Torque spec
Heat Shield Bolts10 Nm (7 lb-ft)

Reassembly

Verify all exhaust hangers are properly seated and exhaust has adequate clearance from chassis components throughout its length
Remove jack stands and lower vehicle to ground

Verification

Start engine and listen for exhaust leaks at the rear flange connection - there should be no hissing or ticking sounds
With engine at operating temperature, visually inspect the flange joint for any exhaust gas leakage
Test drive vehicle and verify no exhaust rattle or abnormal vibration
After first heat cycle, re-check flange bolt torque as gasket may compress slightly