Question 1

How to replace the left exhaust manifold on 4.8L, 5.3L, and 6.0L engines on Cadillac Escalade ESV?

Accepted Answer

The replacement process of the left Exhaust Manifold for 4.8l, 5.3l, and 6.0l engines begins with Ignition Coil and Spark Plug removal before vehicle elevation and support. Begin by taking out the Exhaust Manifold pipe nuts followed by lowering the vehicle to reach the Exhaust Manifold bolts and manifold alongside its gasket which needs removal before disposal. The installer will detach the Exhaust Manifold heat shield bolts and shield when required. You must inspect the Exhaust Manifold and clean it before reuse when keeping the existing manifold. During installation tighten the bolts of the Exhaust Manifold by torquing them to 9 nm (80 inch lbs.) after correctly reattaching the heat shield and its bolts to the Exhaust Manifold. Vehicle emissions together with the on-board diagnostics (OBD) ii system performance depend on precise torque adjustment of Exhaust Manifold bolts during installation. There should be no debris or threadlocking material present inside the Exhaust Manifold bolt hole threads of the cylinder head. Avoid using sealant on the first three bolt threads. Apply threadlocking band gm p/n 12345493 (equivalent to Canadian P/N 10953488) with a 5 mm (0.2 inch) width at the bolts' threads of the Exhaust Manifold. The Exhaust Manifold should be installed with fresh gasket and bolts according to this procedure: start by tightening the center bolts to 15 nm (11 ft. Lbs.), then move to the side-to-side alternation and finish with a final stage of 25 nm (18 ft. Lbs.). Use a flat punch to bend the exposed Exhaust Manifold Gasket edge located at the rear of the left cylinder head. Reposition the vehicle to install Exhaust Manifold pipe nuts that should be tightened to 50 nm (37 ft. Lbs.) after which you should lower the vehicle and replace the spark plugs and ignition coils.

Question 2

How to replace the right side exhaust manifold on Cadillac Escalade ESV?

Accepted Answer

Before replacement of the right side Exhaust Manifold the heated Oxygen Sensor (HO2S) needs to be uninstalled. Fully raise the vehicle with support before removing the Catalytic Converter to Exhaust Manifold nuts like the 1500 series (similar procedure for 2500 series). First lower the vehicle near the wheel opening and defeat the Spark Plug Wires by placing a 1/2 twist on each wire boot and then gently pulling on the boot. Perform the same boot-twisting and pulling process for the Spark Plug Wires leading to the ignition coils. Remove both components (419 and 420) from the engine block consisting of the oil level indicator tube bolt and the oil level indicator tube. Pull out the Exhaust Manifold bolts then remove both bolts and the Exhaust Manifold from the engine block before discarding the Exhaust Manifold Gasket and seal. The procedure of Exhaust Manifold replacement requires dissassembly of both heat shield bolts and shield while doing so. After placing the Exhaust Manifold heat shield correctly begin assembling it with bolts while tightening to 9 n.m (80 lb in). Use gm p/n 12345493 (Canadian P/N 10953488) threadlock on the Exhaust Manifold bolts by applying it around the threads in a 5 mm (0.2 in) wide band. Deal with the engine as previously mentioned until step 7 when you will use a new Catalytic Converter seal and place the new Exhaust Manifold Gasket together with the Exhaust Manifold onto the cylinder head while making sure the Catalytic Converter seal remains in its appropriate position. Starting from the center bolts users should tighten the Exhaust Manifold bolts to 15 n.m (11 lb ft) while alternating between sides before achieving a final torque of 20 n.m (15 lb ft) with the same side-to-side pattern. A flat punch should be used to bend the gasket tab which exists at the gasket's rear section around the cylinder head's surrounding edge. Before installing the oil level indicator tube (420) and tightening bolt (419) to 25 n.m (18 lb ft), inspect o-ring seal (421) and replace it if damaged and lubricate it with clean engine oil. Reinstall the Spark Plug Wires to their respective spark plugs and ignition coils with a correct fitting method using a side-to-side boot check for proper seating. Secure the vehicle at its full height before installing the Catalytic Converter to Exhaust Manifold nuts followed by a torque of 50 n.m (37 lb ft). Finally, install the ho2s.

OEM Cadillac Escalade ESV Exhaust Manifold

10 Exhaust Manifolds found

Cadillac Escalade ESV Exhaust Manifold, Passenger Side Part Number: 12629338

Cadillac Escalade ESV Exhaust Manifold, Driver Side Part Number: 12616285

Cadillac Escalade ESV Exhaust Manifold, Passenger Side Part Number: 12701711

Cadillac Escalade ESV Exhaust Manifold, Driver Side Part Number: 12701710

Cadillac Escalade ESV Exhaust Manifold Part Number: 55513001

Cadillac Escalade ESV Exhaust Manifold, Passenger Side Part Number: 12701715

Cadillac Escalade ESV Exhaust Manifold, Driver Side Part Number: 12713621

Cadillac Escalade ESV Exhaust Manifold Part Number: 12677665

Cadillac Escalade ESV Exhaust Manifold, Driver Side Part Number: 12629337

Cadillac Escalade ESV Exhaust Manifold, Passenger Side Part Number: 12605246

Cadillac Escalade ESV Exhaust Manifold

Cadillac Escalade ESV Exhaust Manifold Parts and Q&A

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