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1997 Jeep Grand Cherokee Laredo 7 1/8″, 7 1/3″, 7 9/16″, 7 4/5″, 8 1/4″, 8 1/2″ & 8 9/10″ Ring Gears Removal And Installation Manual

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Removal (Model 194, 8 1/4″ & 1998 Grand Cherokee 216 Axles) 1. Raise and support vehicle. Remove rear wheel(s). If equipped with drum brakes, remove brake drum. If equipped with disc brakes, remove brake caliper and rotor. On all models, clean axle housing cover. Loosen cover bolts, and drain oil. Remove cover. 2. Remove differential pinion-shaft lock bolt. Remove pinion shaft from differential. Push in axle. Remove “C” clip from axle at pinion gear. Remove axle from tube. Remove axle shaft seal and bearing from axle tube. Installation 1. Grease bearing, and install into axle tube. Ensure bearing part number is facing outwards. Apply wheel bearing grease to axle shaft seal. Install seal in axle tube. Install axle shaft. 2. Install axle “C” clip. Pull axle out to seat “C” clip. Install pinion shaft. Install lock bolt, and tighten to specification. Apply RTV to axle housing cover. Tighten cover bolts to specification. See TORQUE SPECIFICATIONS table. Fill with gear oil. Removal (Model 198, 1999 Grand Cherokee 216 & 226 Axles) 1. Raise and support vehicle. Remove rear wheel(s). Remove brake drum. Remove nuts securing axle retainer plate to axle tube, and discard. Using slide hammer and Adapter (6790), remove axle shaft from axle tube. 2. Using a 3/8″ drill bit, drill a shallow hole into bearing retaining ring on axle. DO NOT drill into axle. Using a cold chisel, cut bearing retaining ring across drilled hole, and remove from axle shaft. Using a press and Bearing Remover (1130), remove bearing from axle shaft. Remove seal and retainer plate from axle shaft. Installation 1. Ensure axle shaft retaining plate is flat and not warped. Install retaining plate on axle shaft. Apply wheel bearing grease to axle shaft seal. Install seal on axle shaft. Grease bearing, and install on axle shaft with outer surface groove facing seal. 2. Using press and Bearing Installer (7913), press bearing onto axle shaft. Press NEW bearing retainer ring onto axle shaft. Install axle shaft in axle tube. Tighten NEW axle retainer plate nuts to specification. See TORQUE SPECIFICATIONS table. PINION SEAL & YOKE Removal

1984-1998 Jeep Wagoneer/ Commando/ Cherokee Emission Controls Crankcase Ventilation System (PCV/CCV)

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CCV Fitting See Figures 2 and 3 1. With the engine running, remove the CCV fitting. a. If the fitting is not plugged, a hissing noise will be heard as air passes through the valve. A strong vacuum should also be felt when a finger is placed over the fitting. b. Install the CCV fitting. c. Remove the fresh air hose from the air cleaner assembly and loosely hold a piece of paper over the open end of the hose. After allowing about one minute for the crankcase pressure to reduce, the paper should be sucked against the opening with a noticeable amount of force. 2. Turn the engine OFF . Remove the metered orifice fitting, and check for a plugged condition. A clicking noise should be heard to indicate that the valve mechanism is free. 3. If the crankcase ventilation system meets the tests in Steps 1 and 2 above, no further service is required. If not, the CCV fitting must be cleaned and the system checked again. 4. If Step 1c fails when the CCV fitting is cleaned, it will be necessary to replace the molded vacuum hose with a new one, and to clean the metered orifice port. 5. Clean or replace the engine air cleaner filter element with a new one-for more details, refer to the air cleaner procedure located in General Information & Maintenance. Fig. 2: CCV system diagram for 4.0L engine Fig. 3: CCV system diagram for the 2.5L engine Evaporative Emission Control System OPERATION The evaporative emission control system prevents the release of unburned hydrocarbons, from gasoline or gasoline vapor, into the atmosphere. When pressure in the fuel tank is below 3 psi (20 kPa), the pressure relief/rollover valves open allowing fuel vapors to flow to the evaporative canister where they are absorbed by a charcoal mixture. This prevents excessive pressure buildup in the fuel system. Most canisters are equipped with a calibrated orifice at the inlet to the canister.

1997 Jeep Cherokee 2WD Serpentine Belt INSPECTION ADJUSTMENT REMOVAL And INSTALLATION

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INSPECTION When inspecting serpentine drive belts, small cracks that run across the ribbed surface of the belt from rib to rib are considered normal. If the the cracks are running along the rib (rather across), this is not normal and the belt(s) must be replaced. ADJUSTMENT It is not necessary to adjust belt tension on the 5.2L or 5.9L engines and on the 2.5L and 4.0L engines (without power steering). These engines are equipped with an automatic tensioner. The tensioner maintains correct tension at all times. 2.5L and 4.0L Engines With Power Steering See Figures 1, 2, 3 and 4 If the vehicle is not equipped with power steering, it will be equipped with an idler pulley. If equipped with an idler pulley, refer to and follow the 5.2L/5.9L belt removal and installation procedure. Loosen the pump upper pivot bolt, lower locknut and pump adjusting bolt using a ratchet and 13mm socket or a 13mm box wrench. 1. Use a belt tension gauge placed in the middle of the belt being tested. Proper tension for a new belt is 180-200 lbs. (800-900 N) and 140-160 lbs. (623-712 N) for a used belt. 2. Tighten the pump adjusting bolt to achieve proper tension and recheck the belt tension. 3. Fig. Fig. 1: Loosen the pivot bolt (1), then the locking bolt (2) to loosen the power steering pump from behind Fig. Fig. 2: Use a ratchet and 13mm size socket to rotate the power steering pump Fig. Fig. 3: Adjustment points on the 2.5L engines without power steering (rear view) Fig. Fig. 4: Adjustment points on the 2.5L engine (front view) Removal & Installation 2.5L and 4.0L Engines With Power Steering See Figures 5, 6 and 7 Fig. Fig. 5: Proper belt routing diagram can usually be found on a sticker located in the engine compartment Fig. Fig. 6: Common 4.0L engine serpentine belt routing Fig. Fig. 7: Common 2.5L engine serpentine belt routing Loosen the rear power steering pump mounting bolts using a ratchet and 13mm socket or a 13mm box wrench. 1. Loosen the pump upper pivot bolt, lower locknut and the pump adjusting bolt using a ratchet and 13mm socket or a 13mm box wrench. 2. Remove the belt. 3. To install: Install the belt. 4. Tighten the pump adjusting bolt to achieve proper tension. 5. Install the pump rear mounting bolts, pivot bolt and locknut. Tighten the bolts to 20. ft. lbs. (27 Nm). 6. Check the belt for proper tension. If tension is incorrect, refer to the adjustment procedure in this section. 7. 5.2L and 5.9L Engines See Figures 8, 9 and 10

1999 Jeep Grand Cherokee Limited AUTOMATIC TRANSMISSIONS Chrysler 45RFE Electronic Controls Repair Manual

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INTERNAL TCM Circuit Description The TCM is reporting internal errors. Diagnostic Procedure 1. Turn ignition switch to LOCK position. Remove transmission control relay. Measure resistance between ground and relay ground circuit (Black/Yellow wire) in relay connector. If resistance is greater than 5 ohms, repair open circuit. If resistance s not greater than 5 ohms, go to next step. 2. The TCM has an internal problem and must be replaced. P0715: INPUT SPEED SENSOR ERROR Circuit Description DTC P0715 will set if an excessive change in input RPM has been detected in any gear. Possible Causes * Intermittent wiring and connector problems. * Faulty input speed sensor. * Input speed sensor circuits shorted to ground, shorted to voltage, or open. * Faulty TCM. Diagnostic Procedure 1. Place gear selector in “P” position and start engine. Using scan tool, monitor input speed sensor value. If value is less than 400 RPM, go to next step. If value is not less than 400 RPM, go to step 9. 2. Turn ignition switch to LOCK position. Install Transmission Simulator (8333). Turn ignition on. Using transmission simulator, turn rotary knob to middle (1000/3000) position. Turn INPUT/OUTPUT switch on. Using scan tool, monitor input and output speed sensor values. If input speed sensor value is 2950- 3050 RPM and output speed sensor value is 950-1050 RPM, replace input speed sensor. If speed sensor values are not as specified, go to next step. 3. Turn ignition switch to LOCK position. Disconnect TCM harness connector. Remove transmission control relay. Using fused jumper wire, jumper fused B+ circuit (Red/White wire) and transmission relay output circuit (Red wire) together at relay connector. Turn ignition on. Measure voltage between ground and input speed sensor signal circuit (Red/Black wire) at TCM harness connector. If voltage is greater than 3 volts, repair circuit for short to voltage. If voltage is not greater than 3 volts, remove jumper wire, install relay and go to next step. 4. Turn ignition switch to LOCK position. Disconnect input speed sensor harness connector. Measure resistance of input speed sensor signal circuit (Red/Black wire) between TCM and input speed sensor. If resistance is greater than 5 ohms, repair open circuit. If resistance is not greater than 5 ohms, go to next step. 5. Measure resistance of input speed sensor ground circuit (Dark Blue/Black wire) between TCM and input

K40016 ADD-A-LEAF SPRING KIT INSTALLATION INSTRUCTIONS

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CHEVY 1982-98 S Series all 2WD/4WD 1972-82 LUV PU 2 WD DODGE 1994-99 Ram 1500 2WD 1994-00 Ram 1500 4WD FORD 1990-96 F 150 std or ext cab 2WD 1982-89 F 150 std or ext cab 2WD 1983-1996 Ford Bronco II 4WD 1983-1996 Ford Bronco II 2WD 1983-1997 Ford Ranger 2WD/4WD 1990-00 Ford Ranger 2WD 1983-97 Ford Explorer 2WD/4WD 1972-84 Ford Courier 2WD K40016 ADD-A-LEAF SPRING KIT JEEP 1984-01 Jeep Cherokee 1974-86 CJ-5/CJ-7/CJ-8 4WD 1967-73 Jeepster/C101/C101 w multileaf Jeep Wrangler 1987-96 Front and Rear LAND ROVER 1959-1981 All 4wd MITSUBISHI 1986-91 Montero 1982-84 PU 2WD/4WD NISSAN 1968-1997 PU/Pathfinder 2WD/4WD TOYOTA 1963-98 Toyota PU/4 Runner with 2.5″ rear springs The K40016 Add-A-Leaf Spring Kit retrofits onto the following vehicles: The kit consists of two each 28″ Leaf Springs and two sets of two each longer bolts and nuts of different diameters. The same diameter bolt currently on the vehicle should be used and the other set discarded. • PLEASE READ ALL INSTRUCTIONS COMPLETELY BEFORE BEGINNING THE INSTALLATION • You must use 2-large “C-clamps” or a large vise to contain the elastic potential energy stored in a leaf spring when the center bolt is removed. • The new leaf spring will be placed in the existing spring assembly in a progressive pyramid shape. Example – if your number 1 Spring is 32″ long and the next one is 25″ long, the new Add-A-Leaf Spring should be place between them. • Some vehicles will have a flat helper stack. SEE ILLUSTRATION – DO NOT INSTALL THE NEW ADD-A-LEAF SPRING IN OR BELOW THE HELPER SPRIN(S). Helper spring assembly. Do not install Add-A-Leaf in or below this assembly Lowest allowable position for Add-A-Leaf