To replace the catalytic converter on your Ram 1500 it couldnt’ be easier. You will be asked to lift the vehicle, disconnect the oxygen sensor, remove the catalytic converter as well as carry out a few other steps. You can carry out this tutorial of 16 chapters in 130 minutes. Take your 8 mm socket and your 15 mm wrench and let’s get started!
130 minutes
16
4
$200
Open the hood
Turn off your vehicle’s ignition, set the parking brake, pull the hood release handle and open the hood.

Disconnect the battery
For safety reasons, we advise you to disconnect the battery.



Informations
We’ll show you how to remove the catalytic converter on the passenger’s side.
The operation is similar on the driver’s side.
Lift the vehicle
Loosen the stud bolts on the front wheels.

Lift the front of your vehicle.

Place the vehicle on the jack stands.


Don’t forget to put the wheels under the vehicle!


Remove the mudguard
Now you need to remove the mudguard.
Unclip the ABS sensor cable retaining clip behind the mudguard.



Using a ratchet and an 8mm socket, unscrew the 3 mudguard retaining screws.


Next, remove the mudguard.


Disconnect the oxygen sensor
You can now see the catalytic converter.

Start by disconnecting the power supply to the upper oxygen sensor by pressing on the tab and pulling on the connector.


Unclip the cable from its plastic guide.


Using a flat head screwdriver, remove the lower oxygen sensor connector retaining clip from its support.


Next, using a fork, pull the connector towards you. Then disconnect it.







Remove the catalytic converter
Using a ratchet, an extender and a 10mm socket, unscrew the 2 upper bolts securing the catalytic converter to the engine block.



For the 2 lower retaining bolts, simply unscrew them a few threads.


Brush the two nuts securing the exhaust line to the catalytic converter and spray them with penetrating oil.




Next, unscrew them using a ratchet and a 16mm socket. Then shift the exhaust flange.




You can now remove the catalytic converter.


Finish removing the 2 lower retaining bolts. Then remove the metal gasket.



Informations
To ensure a perfect seal during reassembly, clean the contact surface between the metal gasket and the engine block using fine sandpaper.

Prepare the new gasket
Take the new metal gasket and put it in place.

Tighten the 2 lower retaining bolts roughly to hold the gasket in place.


Install the oxygen sensor
Take the new catalytic converter on which we advise you to install new oxygen sensors.




Prepare the installation of the new catalytic converter
Take the new threaded rods and nuts provided in the new kits.

Screw the threaded rods back onto the catalytic converter flange by hand.

To finish tightening the threaded rods, screw the two nuts onto one rod by hand then, using two 15mm wrenches, lock the nuts against each other.



This subsequently allows you to finish tightening the threaded rod.

Repeat this step on the other threaded rod.


Put the exhaust line back
Slide the new catalytic converter into its slot.



Then install it on the 2 lower retaining bolts on the engine block.
If you wish, you can coat the junction point between the catalytic converter and the exhaust line with exhaust sealant.

It is not advisable to do this on the upper part of the catalytic converter.
Install the catalytic converter
Install the catalytic converter in the exhaust line.

Put the exhaust flange back in place.

Then screw the retaining nuts back in.


Finish tightening using a torque wrench.
Put the 2 upper bolts securing the catalytic converter to the engine block back in place.

Then screw them back in.

Screw the 2 lower retaining bolts back in until they make contact.


Finish the tightening of the bolts with a torque wrench.

Reconnect the sensor
Reconnect the lower oxygen sensor.

Then clip the cable back onto its support.


Reinsert the upper oxygen sensor cable into its guide.


Then reconnect it.

Put the mudguard back in
Put the mudguard back in place.


Then tighten all the screws.

Clip the ABS sensor connector back inside the mudguard.

Put the vehicle back on the ground
Then, you will be able to put the wheels back on your vehicle.

Put the car back on the ground and block the wheels properly.


Reconnect the battery.

Operation complete.
