GM 19180529
Starter

For llv/llr (2.9L, 3.7L) Starter motor replacement start by removing the Intake Manifold. First disconnect the Starter solenoid s terminal nut and lead from the Starter while also removing the Starter terminal nut and battery positive cable . After removing the Starter motor's mounting nut along with its bolt, you can pull the Starter motor free from the power unit. Installation requires the Starter motor to be positioned securely over the stud and strict fastener safety protocols must be followed. You should install the Starter motor mounting nut and bolt at 50 nm (37 lb ft) torque. Secure the Starter terminal nut with 9 nm (80 lb in) torque setting while you reconnect the battery positive cable to the Starter. Use the lead to wire the Starter solenoid and tighten its s terminal nut to 3.5 nm torque (31 lb in). Finally, reinstall the Intake Manifold.

The beginning step to replace the Starter motor on a 4.3l engine consists of removing the negative Battery Cable. The maintenance process begins with vehicle suspension followed by removal of any skid plate from beneath the oil pan and the bolts attaching it to the vehicle. The Starter replacement process begins by removing the Starter solenoid cable clip bolt from the frame. Then remove Starter motor bolts before detaching the Starter solenoid cable lead nut and lead. Remove the Starter solenoid cable lead by undoing its nut before taking the wire off the Starter. The Starter needs removal from the vehicle after dissolving the engine wiring harness lead nut and engine wiring harness lead from the Starter assembly. Replace the Starter shield if it shows any sign of damage during replacement. As part of new Starter installation it is vital to install the Starter heat shield before you install the Starter itself. Position the Starter inside the vehicle before connecting the engine wiring harness lead at the Starter point through the engine wiring harness lead nut while applying a torque at 3.4 nm (30 lb in). Secondly attach the Starter solenoid cable lead to the Starter then tightly secure it with a 9 nm (80 lb in) torque on the Starter solenoid cable nut. First tighten the Starter motor bolts to 50 nm (37 lb ft) before applying Starter solenoid cable clip to the frame and installing the Starter solenoid cable clip bolt with 10 nm (89 lb in) torque. Position the available oil pan skid plate before installing its bolts which should be tightened at 28 nm (21 lb ft). End your work by lowering the vehicle and reconnecting the negative Battery Cable.

Start by disconnecting the vehicle's negative Battery Cable when replacing the Starter motor. Before beginning start by lifting the vehicle then take out the oil pan skid plate (if it has one). The next step requires removal of both the transmission cover bolt and Starter bolts. Use protective gloves to disconnect the engine wiring harness electrical connector from the oil level sensor while protecting the Starter from hanging by cables or wires and instead using a rope or mechanics wire. The correct supply for support should consist of either a rope or mechanics wire. Move the Starter so it passes the transmission then place it in a proper support position. Lower the vehicle halfway then remove the right front wheel and tire from the vehicle. Under the right wheel well opening complete the removal of the engine wiring harness lead nut and the lead terminal from the Starter. First unscrew the frame-mounted Starter solenoid cable clip bolt followed by disconnecting the solenoid cable nut and then removing the Starter solenoid cable. Drive the Starter outside of the wheel well opening. To replace the Starter first snap off transmission cover then remove the Starter heat shield. After installing a new Starter the technician must first install the Starter heat shield then use their hand to snap the transmission cover onto the Starter unit. Feed the Starter through the wheel well access point before connecting the solenoid cable to the Starter unit while torqueing the cable nut to a tightness of 9 nm (80 lb in). Next install the Starter solenoid cable clip to the frame while torquing the clip bolt to 10 nm (89 lb in). Insert the engine wiring harness lead terminal onto the Starter component while tightening the lead nut to 3.4 nm torque value (30 lb in). Place the Starter into position then install and tighten Starter bolts to 50 nm (37 lb ft). After reinstalling the right front wheel and tire, lift the vehicle before reconnecting the engine wiring harness electrical connector to the oil level sensor. Installation of the transmission cover bolt requires a 9 nm (80 lb in) torque specification followed by oil pan skid plate reinstallation when present and negative Battery Cable reconnection.

A replacement of the Starter motor requires users to begin by disconnecting the negative Battery Cable for 4.8l, 5.3l, 6.0l, and 6.2l engines. Support the vehicle raised position while 2500 series vehicles need you to remove their front 2 oil pan skid plate bolts together with loosening of the rear 2 bolts before skid plate extraction. Begin by removing the transmission cover bolt as well as the Starter bolts before disconnecting the engine wiring harness electrical connector from the oil level sensor. Maintain awareness of not hanging the Starter using cables or wires during this process. Set the Starter forward past the transmission then implement a proper support method. Drop the vehicle halfway to access the right front wheel and tire followed by removing the right front wheelhouse liner. Start by removing the lead nut and terminal of the Starter's engine wiring harness before removing the frame-mounted Starter solenoid clip bolt and nut to free the Starter solenoid cable . Start by extracting the Starter through the wheel well opening; when installing a new Starter, separate and take off the Starter heat shield. To install the new Starter observe the following process: start by adding the heat shield to the Starter, then attach the transmission cover onto the Starter base. Pass the Starter through the wheel well opening before connecting the Starter solenoid cable to the Starter. South to 9 nm (80 lb in) tightness is required for the solenoid cable nut. Position the Starter solenoid cable clip to the frame then bolt it tightly at 10 nm (89 lb in). Fasten the Starter's engine wiring harness lead terminal with a lead nut tightened to 3.4 nm (30 lb in). Each Starter bolt requires tightening to achieve 50 nm (37 lb ft). Install the right front wheel and tire after placing back the wheelhouse liner. Allow the vehicle to rest on stands while you join the engine harness electrical connector to the oil level sensor before installing and firmly tightening the transmission cover bolt to 9 nm (80 lb in). Owners should install the oil pan skid plate to 2500 series vehicles by tightening each bolt to 28 nm (21 lb ft); the two front bolts and two rear bolts. To complete the repair work lower the vehicle before reconnecting the negative Battery Cable.

Starting the repair process for a v8 Starter motor requires users to disconnect the negative terminal of the battery. Lift and stabilize the vehicle after which remove the right transmission cover bolt if present. Cut the power connection to the oil level sensor then unscrew the Starter mounting bolts. Start by sliding the Starter forward beyond the transmission zone. Then remove the solenoid nut before taking the Starter lead off the solenoid stud and finishing by removing the lead nut. After removing the Starter stud positive lead wire, place the Starter unit on a designated workbench. Installation of the transmission cover from the Starter requires unsnap action but Starter shields should only be removed if necessary. Installation requires a step to add the Starter shield before applying the transmission cover to the Starter when applicable. The Starter requires attachment of the positive cable to its stud followed by applying the Starter lead nut requiring a torque setting of 10 nm (89 lb in). The Starter solenoid lead requires installation onto the solenoid stud before screwing in the Starter solenoid nut until torque reaches 3.4 nm (30 lb in). Move the Starter forward until position is reached then secure it with bolts at 50 nm (37 lb ft). Secure the right transmission cover bolt at 9 nm (80 lb in) torque if your vehicle has this component. Lower the vehicle and perform the following operations: install the negative Battery Cable and connect the oil level sensor electrical connector.

To remove the Starter motor on 4.8l/5.3l/6.0l engines, you will need to start by disconnecting the negative Battery Cable. Lift and secure the vehicle and remove the cover bolt to the right if it is equipped. Remove the oil level sensor level electrical connector and Starter bolts. Slip the Starter forward until it clears the transmission and take the Starter solenoid nut off; then, the Starter lead from the solenoid stud and the positive cable from the Starter stud. Note: if the trans cover is attached to the Starter, remove it. Do so by unsnapping the trans cover from the Starter if equipped. If necessary remove the Starter shield. For installation (if applicable) mount Starter shield and snap in the transmission cover to the Starter if equipped. Connect the positive cable to the start stud connect the Starter lead nut and turn tighten to 10 nm (89 lb in). Next, connect the Starter solenoid lead to the solenoid stud, then use the solenoid nut tighten to 3.4 nm (30 lb in.). Push the Starter backwards, tighten the Starter bolts to 50 nm (37 lb ft) and install the right transmission cover bolt, if equipped to 9 nm (80 lb in). Connect the oil level sensor electrical connector after that; lower the vehicle, and finally, connect the negative Battery Cable.

Take off the Starter motor by first removing the negative Battery Cable. Lift the vehicle and then remove the oil pan skid plate if you have it. Next, take out the transmission cover bolt and Starter bolts. Unplug the engine wiring harness electrical connector from the oil level sensor, without allowing the Starter to hang off the cables or wires; instead, do not use a rope or mechanics wire for support. Slide the Starter forward until it clears the transmission and supports it correctly. Lower the vehicle halfway, unscrew the right front wheel and tire. To remove Starter engine wiring harness lead nut and lead terminal from the Starter, working through the right wheel well opening. You need to remove the Starter solenoid cable clip bolt off the frame and the solenoid cable nut and solenoid cable of the Starter. Pull the Starter from the wheel well opening. When replacing the Starter, unsnap transmission cover and eliminate the Starter heat shield. For installation replace the Starter heat shield and snap in the transmission cover onto the Starter. Install the Starter from the wheel well opening and connect the wire from the Starter solenoid to the Starter attaching the nut and tightening it only 9 nm (80 lb in). Attach the Starter solenoid cable clip to the frame and tighten the clip bolt up to 10 nm (89 lb in). Install engine wiring harness lead terminal to the Starter and connect lead nut with 3.4 nm (30 lb in) torque. Start position by placing the Starter in the position and installing bolts on Starter and tightening to the coils of 50 nm (37 lb ft). Remove and reinstall the right front wheel & tire, lift the vehicle, and hook the engine wiring harness electrical connector to the oil level sensor. Finally install the transmission cover bolt that has to be manually tight at 9 nm (80lb in) if equipped, reinstall the oil pan skid plate, reconnect the negative cable.

To replace the Starter motor on the llv/ llr, with the 2.9l or 3.7l engine, you should remove the Intake Manifold first. Remove the Starter solenoid s terminal nut and lead and disconnect the Starter terminal nut and battery positive cable from the Starter. Next, remove the Starter motor mounting nut and bolt to remove the Starter motor from the engine. For installation, select the Starter motor and place it over the stud by being guided by the caution of the fasteners. Mount the Starter motor nuts and bolts with a torque of 50 nm (37 lb ft). Reconnect the battery positive cable back on the Starter, tighten the Starter terminal nut to 9 nm (80 lb in). Connect the lead to the Starter solenoid and install the Starter solenoid s terminal nut tightening it to 3.5 nm (31 lb in). Lastly, reinstall the Intake Manifold for the corresponding engine.

Remove the vacuum brake booster hose.

Install the starter motor bolts and tighten them to 50 Nm (37 lb ft).