Hummer 89017846 Starter,(Remanufacture)

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When checking for voltage at the starter solenoid during ignition switch activation, the test light should shine brightly or display battery voltage.

It is the reverse of removal. Tighten the starter mounting fasteners.

Remove the starter solenoid shield and the transmission bell housing bolt (Remove the transmission bellhousing cover bolt).- Remove the starter mounting bolts (Remove the starter mounting bolts).- Carefully lower the starter with the terminals facing toward the front of the vehicle.- Disconnect the wires from the terminals on the starter solenoid (Remove the nuts and disconnect the battery cable and the solenoid terminal from the starter motor) and remove the starter from the vehicle.

The above scenario is about starter circuits. The starting circuit of a car malfunctions for different reasons; therefore, it would be wrong to always assume that the problem emanates from a defective starter. Before investigating the starting circuit in depth, we should also examine the connections between the battery cable clamps and battery terminals making sure they are clean and tight. Replace any damaged ones among the battery cables. However, if it does not pass any tests, then it is supposed to be replaced. Evaluate the connection of wiring and connections to the Starter along with the tightness of its mounting bolts. Check out related fuses in the engine compartment (fuse box) that might have blown off. Assessing the ignition switch circuit as well as ensuring appropriate operation of the starter relay situated in underhood electrical center is equally important here. Moreover, these systems must work properly so that power can be safely delivered from battery to relay for starting purposes; meaning, you also need to verify functional condition of Park/Neutral position switch. When you start your vehicle by turning on ignition key from OFF to START and nothing happens (starter stays dead), look for voltage at this location on solenoid so as to verify whether or not such voltage is supplied by relay through them. Keep an eye on what happens at this terminal during an assistant's activation of ignition switch using a 12-volt test light or voltmeter; bright test light or indicated battery voltage on voltmeter confirms presence of voltage. If there is no one present or absent when checking fuses, ignition switch, starter relay or its wires then there is a problem with either fuses, ignition key switch, relay or its wiring respectively where no voltage should be found according to my paper. There are other possibilities that may occur when voltages are available at these two points but motor does not engage when rotating crankshaft pulley by hand after disconnection from load side system termed as rare case. In testing, use battery test clips to connect test battery to starter terminals and then apply voltage from it on S terminal solenoid while observing pinion drive and any movements of solenoid during such actions. The solenoid is working if the pinion drive extends without turning; in this case, however, the problem lies with the motor because it can't turn around when energized by the solenoid. If you hear clicking sound but there is no movement at all, one or both of the solenoid or Starter may be defective. In this case though, you can tell that the starter assembly is good because it has a rotating plunger that extends pinion drive outwards.

Disconnect the cable from the negative battery terminal. For inline engines, remove the intake manifold. Disconnect the electrical connections at the starter by removing the nuts and disconnecting the battery cableand the solenoid terminal nut and wirefrom the starter inline engine. Remove the starter nut (top) and bolt (bottom) then remove the starter. Installation is the reverse of removal. Tighten the starter mounting fasteners. For VB engines, loosen the lug nuts of the right front wheel. Raise the vehicle and support it securely on jackstands. Remove the wheel. Disconnect the wiring harnesses from the starter. On 4WD models, remove the front driveshaft. Remove the cover from the right front of the transmission. Remove the starter mounting bolts. Pull the transmission cover from the nose of the starter. Remove the heat shield from the top of the starter if necessary, then remove the starter. Installation is the reverse of removal.

Several key components should be inspected when troubleshooting a starting circuit malfunction. These include:Battery cable clamps: Ensure they are clean and securely connected to the battery.Battery cables: Examine them for damage and replace any that are damaged.Battery condition: Assess the battery's condition and replace it if it fails any tests.Starter motor wiring and connections: Inspect them.Starter motor mounting bolts: Check their tightness.Relevant fuses: Examine the relevant fuses in the engine compartment fuse box.Ignition switch circuit: Evaluate its correct operation.Starter relay: Verify its functionality.Park/Neutral position switch: Ensure it operates correctly.