GM 12622316
Thermostat Housing

Draining the cooling system represents the first step in removing the water outlet housing. Insert hose clamp pliers (J 38185) around the clamp to separate the radiator outlet hose from its attachment to the water outlet housing. Begin by removing the bolts which secure the power steering pump bracket to the water outlet housing. After that, remove the water outlet housing from the Cylinder Head. Check both the water outlet housing for cleanliness while inspecting the sealing surface of the Cylinder Head. Place the water outlet housing onto the Cylinder Head before mounting water outlet housing bolts and applying a torque of 10 nm (89 inch lbs.). Install the power steering pump bracket while using hose clamp pliers (J 38185) to connect the radiator outlet hose to the water outlet housing. After starting the engine the process ends with fixture of the coolant and verification of leak-free sealing surfaces.

Start by draining the cooling system then elevate the vehicle just enough so you can reach the Thermostat Housing through the wheelhouse. The left wheelhouse liner comes off first followed by using hose clamp pliers (J 38185) to disconnect the radiator inlet hose from its position at the Thermostat Housing. The next step requires removal of Thermostat Housing bolts followed by separation of the Thermostat Housing from the engine block. Both the Thermostat Housing and engine block sealing surfaces need cleaning before inspection. Screw the Thermostat Housing onto the engine block after which install and tighten the Thermostat Housing bolts to 10 nm (89 inch lbs.). You need hose clamp pliers (J 38185) once again to do the radiator inlet hose installation onto the Thermostat Housing then reinstall the left wheelhouse liner followed by vehicle lowering together with cooling system filling and ending with leak inspection after starting up the engine.

To replace the engine-coolant Thermostat in vehicles with llv and llr engines (2.9L, 3.7L), start with draining the cooling system. Lift and stabilize the vehicle enough to reach the Thermostat Housing wheezing through the wheelhouse, then pop the leftover wheelhouse liner. It is recommended to remove the radiator inlet hose from the Thermostat by using hose clamp pliers, i.e., a j 38185 hose clamp pliers. Secondly, you need to remove the Thermostat Housing bolts and loosen the Thermostat Housing from the engine block. Clean and inspect the engine block's sealing surface and the Thermostat Housing. For installation, place the Thermostat Housing onto the engine block while making sure the Thermostat Housing bolts are properly installed and tightened immediately to 10 nm (89 lb in). Replace the radiator inlet hose using the j 38185 hose clamp pliers, replace the left wheelhouse liner, and lower the vehicle. Lastly, cool down the system and check all the sealing points for leakages after the ignition of the engine.

You need to empty the cooling system before changing the Thermostat Housing of llv and llr models (2.9L, 3.7L). Use j 38185 hose clamp pliers to detach the radiator outlet hose from the Thermostat Housing after placing the tool onto the clamp. Begin by removing the power steering pump bracket followed by the Thermostat Housing bolts before separating the housing from the Cylinder Head. Both the Thermostat Housing and Cylinder Head sealing surface require inspection after cleaning. Start by mounting the Thermostat Housing correctly onto the Cylinder Head while keeping to fastener cautions then bolt it and apply a torque of 10 nm (89 lb in). Reinstall the power steering pump bracket before using the j 38185 hose clamp pliers to connect the radiator outlet hose to the Thermostat Housing. Then complete the operation by filling the cooling system. After starting the engine proceed with a leak inspection of all sealing surfaces.

To replace the water outlet housing on llv - 2.9l and llr - 3.7 l engines, the coolant system has to be drained first. During this, make sure you tried it using the hose clamp pliers (J 38185) to disconnect the radiator outlet hose from the water outlet house. Next, take off the power steering pump bracket and the water outlet housing bolts, then the water outlet housing can be removed from the Cylinder Head. Cleaning and inspection of water outlet housing and sealing surface on Cylinder Head part. Mount the new water outlet housing upon the Cylinder Head and start the bolts tightening up to 10 n.m (89 lb in). Replace the power steering pump bracket, and use the hose clamp pliers (J 38185) to join the outlet hose from the radiator to the water outlet housing. Lastly, fill the cooling system and check all the sealing surfaces for leaks after starting the engine.

Engine coolant Thermostat (LLV/LLR) (2.9L/3.7L) replacement requires cooling system draining before beginning. After raising the vehicle to an appropriate height for access through the wheelhouse you can remove the left wheelhouse liner. You must disconnect the radiator inlet hose from the Thermostat Housing using j 38185 hose clamp pliers. First remove the Thermostat Housing bolts before taking the housing off the engine block. Both the Thermostat Housing and engine block's sealing surface need to be cleaned and inspected. Place the Thermostat Housing onto the engine block before installing its bolts to a torque of 10 nm (89 lb in). By using j 38185 hose clamp pliers the radiator inlet hose can be reconnected to the Thermostat Housing before reinstalling the left wheelhouse liner and lowering the vehicle. The system should be filled with fluid followed by leak detection on all sealing surfaces after the engine operates normally.

The replacement of the engine coolant Thermostat requires draining the cooling system when working on llv - 2.9l and llr - 3.7l engines. Drivers should elevate their vehicle enough for wheelhouse access to the Thermostat Housing before they extract the left wheelhouse panel. Connect the hose clamp pliers (J 38185) to separate the radiator inlet hose from its position on the Thermostat Housing. Begin by unlatching the Thermostat Housing bolts then detach the housing from the front of the engine block. Both of the Thermostat Housing and the engine block's sealing surface require cleaning before an inspection. When installing the Thermostat Housing it should be placed onto the engine block followed by Thermostat Housing bolt tightening at 10 n.m (89 lb in). The radiator inlet hose gets attached to the Thermostat Housing using hose clamp pliers (J 38185) before replacing the left wheelhouse liner while lowering the vehicle. To finish the installation fill the cooling system while checking all components for leakage shortly after the engine starts.

The initial step needs to drain the cooling system before starting water outlet housing replacement. First unfasten the radiator outlet hose through the hose clamp pliers (J 38185) from the water outlet housing. First remove power steering pump bracket and water outlet housing bolts before extracting the water outlet housing from its position on the Cylinder Head. Examine both components by cleaning them and inspecting the Cylinder Head sealing surface. Mount the water outlet housing onto the Cylinder Head before torquing all water outlet housing bolts up to 10 n.m (89 lb in.). Use hose clamp pliers (J 38185) to reattach the radiator outlet hose with the water outlet housing. Afterward reinstall the power steering pump bracket. Fill your vehicle's cooling system and check every sealing surface for leaks once you start the engine.

Clean and inspect both the thermostat housing and the sealing surface of the engine block.