Where is the alternator in 1999 Jeep Cherokee?

Answer 1

To remove the Belt the Power Steering pump needs to be loosened. There is one 13mm pivot bolt at the top front, one 13mm nut under in the front (adjuster lock nut), two 13mm in back of the pump, and then loosen the adjuster bolt on the driverside also a 13mm. Its a little easier with the aux fan out. That will loosen the belt.

Then the alt comes out from underneath with 10, 13, 14, 15mm bolts/nuts. You have to remove the stamped steel bracket in the front of the alternator to make it easier to get out.
The wiring is on the back. the hot wire is 10mm and there is a small sensor of some sort on the bottom of the alternator that has two wires and two small 7mm nuts.


Removing the battery before you pull the alt makes it a MUCH easier job and it should disconnected just to be safe.

Wiggle the alternator out the frontside through the AC fan blades

There is a great Video at http://www.YouTube.com/watch?v=uHCyCY8_lsc

--If the alternator is just too big for removal without comprompising the fan blades, try unbolting the front mount, fan shroud and the fan blade/cclutch itself.

Answer 2

Removal & Installation

5.7L Engines

# Before servicing the vehicle, refer to the precautions in the beginning of this manual. # Disconnect negative battery cable at battery. # Remove generator drive belt. # Unsnap plastic insulator cap from B+ output terminal. # Remove B+ terminal mounting nut at rear of generator. Disconnect terminal from generator. # Disconnect field wire connector at rear of generator by pushing on connector tab. # Remove 2 generator mounting bolts. # Remove generator from vehicle. Alternator mounting-5.7L engine

To install: # Position generator to engine and install 2 mounting bolts. # Tighten bolts to 30 ft. lbs. (41 Nm). # Snap field wire connector into rear of generator. # Install B+ terminal eyelet to generator output stud. Tighten mounting nut. WARNING

Never force a belt over a pulley rim using a screwdriver. The synthetic fiber of the belt can be damaged.

NOTE

When installing a serpentine accessory drive belt, the belt MUST be routed correctly. The water pump may be rotating in the wrong Direction if the belt is installed incorrectly, causing the engine to overheat.

# Install generator drive belt. # Install negative battery cable to battery. Except 5.7L Engine

# Before servicing the vehicle, refer to the precautions in the beginning of this manual. # Remove or disconnect the following: NOTE

The 3.7L and 4.7L engines have 1 vertical and 2 horizontal bolts.

#* Negative battery cable #* Accessory drive belt #* Alternator harness connectors #* Alternator #* Mounting bolts and alternator To install: 3.7L engine alternator mounting

4.0L engine alternator mounting

# Before servicing the vehicle, refer to the precautions in the beginning of this manual. # Install the alternator and tighten the bolts to the following specifications: #* 2.5L and 4.0L engines: 41 ft. lbs. (55 Nm). #* 3.7L engine: Tighten the horizontal bolts to 42 ft. lbs. (57 Nm), then the vertical bolt to 29 ft. lbs. (40 Nm) #* 4.7L engine: Vertical bolt and long horizontal bolt to 41 ft. lbs. (56 Nm), short horizontal bolt to 55 ft. lbs. (74 Nm) # Install or connect the following: #* Alternator harness connectors #* Accessory drive belt #* Negative battery cable Testing

The following procedures may be used to diagnose the charging system if: * the check gauges lamp (if equipped) is illuminated with the engine running * the voltmeter (if equipped) does not register properly * an undercharged or overcharged battery condition occurs. Remember that an undercharged battery is often caused by: * accessories being left on with the engine not running * a faulty or improperly adjusted switch that allows a lamp to stay on. Inspection :The Power train Control Module (PCM) monitors critical input and output circuits of the charging system, making sure they are operational. A Diagnostic Trouble Code (DTC) is assigned to each input and output circuit monitored by the On-Board Diagnostic (OBD) system. Some charging system circuits are checked continuously, and some are checked only under certain conditions. Perform the following inspections before attaching the scan tool. # Inspect the battery condition. # Inspect condition of battery cable terminals, battery posts, connections at engine block, starter solenoid and relay. They should be clean and tight. Repair as required. # Inspect all fuses in both the fuse block and Power Distribution Center (PDC) for tightness in receptacles. They should be properly installed and tight. Repair or replace as required. # Inspect generator mounting bolts for tightness. Replace or tighten bolts if required. # Inspect generator drive belt condition and tension. Tighten or replace belt as required. # Inspect automatic belt tensioner (if equipped). # Inspect generator electrical connections at generator field, battery output, and ground terminal (if equipped). Also check generator ground wire connection at engine (if equipped). They should all be clean and tight. Repair as required.

Answer 3

The alternator is driven by a drive belt or a serpentine belt. Follow the route of the belt and you will find the alternator.