Question 1

How to replace the left side catalytic converter (LP1, LY7) on Cadillac CTS?

Accepted Answer

The left side Catalytic Converter (LP1, LY7) replacement process starts with deinstalling the left bank exhaust manifold heat shield together with the Catalytic Converter nuts. Support your vehicle while you move to disconnect electrical connectors from oxygen sensors as well as remove pipes between converters on both the left and right sides. Use a socket wrench to remove Exhaust Pipe nuts at the right bank Catalytic Converter position then extract the converter assembly following removal of its seal/heat shield and Oxygen Sensor from the exhaust manifold. Narrow down the sequence by taking off the Oxygen Sensor from its position on the Catalytic Converter. The installation process begins with attaching the Oxygen Sensor onto the Catalytic Converter while you evaluate the Catalytic Converter seal/heat shield sealing surface for wear and necessary replacements. Thread the Catalytic Converter's seal/heat shield onto its surface before repositioning the converter onto the exhaust manifold and tightening it with converter nuts. After reconnecting the Oxygen Sensor electrical connector check the Catalytic Converter seals so replace them if damage is present. You should install each Exhaust Pipe with its respective nuts on both sides of the catalytic converters until the torque reaches 22 n.m (16 lb ft). Set the vehicle height while securing Catalytic Converter exhaust manifold nuts at 50 n.m (37 lb ft) until you can install the right bank exhaust manifold heat shield.

Question 2

How to replace the catalytic converter on the right side of the 2500 Series on Cadillac Escalade?

Accepted Answer

The process of replacing the right-side Catalytic Converter on the 2500 series starts with hoisting the vehicle into a proper position for access. First loosen the 2 rear oil pan skid plate bolts then remove the 2 front oil pad skid plate bolts before taking off the skid plate if your vehicle has this component. The next step involves taking out both the Muffler and the transmission crossmember. Remove the right front connector position assurance (CPA) retainer and disconnect the right front heated Oxygen Sensor (HO2S) electrical connector that connects to the engine wiring harness electrical connector. Separate the right rear cpa retainer before unconnecting the engine wiring harness electrical connector from the right rear ho2s electrical connector. Before separating the Catalytic Converter from Exhaust Manifold studs cut its engine harness clip electrical connector clip and remove Catalytic Converter to Exhaust Manifold nuts. Pull the Catalytic Converter hanger out of its position in the hanger bracket. Before installing a new Catalytic Converter remove any needed exhaust seal and extract both ho2s sensors (2 and 3). Before installing the Catalytic Converter with any previous sensors apply gm p/n 12377953 anti-seize compound or equivalent product to the threads. Put the ho2s's (2 and 3) on the Catalytic Converter assembly where you should torque each sensor to 42 n.m (31 lb ft). Insert the new exhaust seal before you guide the Catalytic Converter hanger into its bracket and then install the Catalytic Converter onto Exhaust Manifold studs. Tighten Exhaust Manifold nuts holding the Catalytic Converter in position at 50 n.m (37 lb ft). Reinstall the right rear ho2s electrical connector clip to the engine harness clip then join the engine wiring harness electrical connector with the right rear ho2s electrical connector and slot in the right rear cpa retainer. The right front ho2s electrical connector requires connection to the engine wiring harness electrical connector while you install the right front cpa retainer. Complete the installation by putting the Muffler back in place while also repositioning the transmission crossmember and oil pan skid plate and tighten the two rear pan bolts until they are snug before securing the two front pan bolts if the vehicle has them. Torque these front bolts to 28 n.m (21 lb ft).

Question 3

How to replace the catalytic converter on the right side for the LY7 - Gas, 6 Cylinder, 3.6L, SFI, V6 on Cadillac SRX?

Accepted Answer

Beginning a right side Catalytic Converter replacement for the ly7 - gas, 6 cylinder, 3.6l, sfi, v6 starts with removal of the right bank exhaust manifold heat shield. Separate the Catalytic Converter nuts and then lift and stabilize the vehicle using jack stands. Remove the front driveshaft before starting work on any awd-equipped vehicle. You need to sever the electrical connections on the oxygen sensors and the muffler tubes from each of the left and right catalytic converters. Use a socket wrench on right bank Catalytic Converter fasteners then remove the exhaust components and seal/heat shield while taking out the Oxygen Sensor from the exhaust manifold. The Oxygen Sensor needs to be detached from the Catalytic Converter. Before attachment install the Oxygen Sensor to the Catalytic Converter while inspecting the Catalytic Converter seal/heat shield for wear or damage to replace as necessary. Position the Catalytic Converter properly on the exhaust manifold and fasten it before installing the Catalytic Converter seal/heat shield to the converter's surface. Connect the Oxygen Sensor's electrical connector before you secure the muffler pipes to both catalytic converters while tightening their nuts to 22 n.m (16 lb ft). When your vehicle has awd functionality you need to reinstall the front driveshaft. Lower the vehicle before tightening both Catalytic Converter nuts to 50 n.m (37 lb ft). Reinstall the right bank exhaust manifold heat shield as the last step.

OEM Cadillac Catalytic Converter

165 Catalytic Converters found

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Cadillac Catalytic Converter, Driver Side

Cadillac Catalytic Converter, Driver Side

Cadillac Catalytic Converter, Driver Side

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Cadillac Catalytic Converter, Driver Side

Cadillac Catalytic Converter, Passenger Side

Cadillac Catalytic Converter, Driver Side

Cadillac Catalytic Converter, Passenger Side

Cadillac Catalytic Converter, Driver Side

Cadillac Catalytic Converter, Driver Side

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Cadillac Catalytic Converter

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Cadillac Catalytic Converter, Driver Side

Cadillac Catalytic Converter

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