Catalyst, Selective Catalytic Reduction (SCR): Installation: Installation
WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Install NEW exhaust flange gasket between the Selective Catalytic Reduction Catalyst (SCR) (2) and the extension pipe.
- Position the SCR (2) onto flange and install flange nuts (3) finger tighten.
- Install the isolators (1) onto the SCR (2) hanger rods.
- Install the tail pipe assembly. Refer to TAILPIPE, EXHAUST, INSTALLATION .
- Check the exhaust system for contact with the body panels. A minimum of 25 mm (1.0 in.) is required between the exhaust system components and body/frame parts. Make the necessary adjustments, if needed.
- Tighten the flange nuts (3) to 60 N.m (44 ft. lbs.).
- Install the bank 1/2 NOx sensor. Refer to SENSOR, NOX, INSTALLATION .
- Connect the rear exhaust temperature sensors wire harness connector.
- If equipped, connect the Particulate Matter (PM) sensor wire harness connector.
- Connect the Diesel Exhaust Fluid (DEF) fluid supply line (1).
- Connect the DEF injector wire harness connector (2).
- Connect the front exhaust temperature sensors wire harness connector (1).
- If equipped, install skid plates.
- Lower the vehicle.
- Connect both negative battery cables.