Q: How to replace the catalytic converter on the right side on GMC Acadia?
A: Start by removing the right-side exhaust flexible pipe to substitute the Catalytic Converter. Begin by removing Exhaust Manifold nuts from the Catalytic Converter then disconnect the Catalytic Converter from the Exhaust Manifold. The service technician needs to dispose of the Catalytic Converter to Exhaust Manifold seal. During installation position a new Catalytic Converter to Exhaust Manifold seal on the Catalytic Converter while securing the Catalytic Converter to the Exhaust Manifold. Secure the Catalytic Converter to the Exhaust Manifold by torquing its nuts up to 50 n.m (37 lb ft). The installation of the exhaust flexible pipe should be the last step.
Q: How to replace the catalytic converter on 4.3L, 4.8L, and 5.3L engines on GMC Sierra 1500?
A: To replace the Catalytic Converter on 4.3l, 4.8l, and 5.3l, he should first raise and support the vehicle first. Unclip and disconnect the Oxygen Sensor connection as well as all electrical connectors, then remove the Oxygen Sensor clips and connect position assurance (CPA) retainers. Unclip the Oxygen Sensor electrical connectors from the hose clip and transmission crossmember, and removal remaining connectors. Take off the left exhaust manifold pipe nuts and the right ones, exhaust muffler ones, and then extract the Catalytic Converter. Remove the sensors if required. For installation, if necessary install the oxygen sensors with the use of an anti-seize gm p/n 12377953 or similar to its threads and tighten to 42nm (31 ft. Lbs.). Then there is the Catalytic Converter and new exhaust manifold pipe nuts of which you snugged the exhaust manifold pipe nuts of the right and left then tightened to 50 nm (39 ft. Lbs.). Install the exhaust muffler nuts and tighten them at a torque of 40 nm (30 ft. Lbs.). Reconnect the Oxygen Sensor electrical connectors and cpa retainers and clip the connectors to the hose clip and transmission crossmember and make sure all the connections are secure. Lastly, fasten the clip to the Oxygen Sensor pigtail and engine harness, reconnect the Oxygen Sensor electrical connector, clip the Oxygen Sensor connection to floor reinforcement if available, and drop the vehicle.
Q: How to Replace a Catalytic Converter Safely and Effectively on GMC Yukon?
A: To replace the Catalytic Converter, first, begin with raising and supporting the vehicle. First, if present, remove the oil pan skid plate with the next step being to remove the transmission crossmember. If replacing three ways Catalytic Converter, remove heated oxygen (HO2S) sensors; otherwise, disconnect their harness connectors. Then, detach the nuts that connect the Catalytic Converter pipe (to the Exhaust Manifold and the Catalytic Converter to the Muffler) then pull out the Catalytic Converter pipe assembly from the vehicle, dispose the exhaust seals (2 and 3). For the installation, install new Exhaust Manifold seals (2 and 3) and attach the Catalytic Converter pipe to the exhaust manifolds. Fix the Catalytic Converter pipe on to the Exhaust Manifold nuts and firm them fully to 50 nm (37 lb. Ft.), then the Muffler with the Catalytic Converter nuts and tightening the clamp bolt fully to 45 nm (33 lb. Ft.). Reinstall the transmission crossmember. If the sensor is re-installed, then a special anti-seize compound, that is composed of the liquid graphite and glass beads, should be applied on the ho2s threads. If changing the three-way Catalytic Converter put on the heated oxygen (HO2S) sensors. Otherwise, connect the harness connectors. Lastly, install the oil pan skid plate if so equipped, lower the vehicle and check for exhaust leaks.