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hummer h2 alternator repair

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Malfunction Indicator Lamp (MIL) On, Transmission Stuck in Second or Third Gear, Instrument Cluster Inoperative (Verify and Repair Source of Voltage Loss In Transmission Solenoid Power Supply Circuit )

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2006 and Prior GM Passenger Cars and Light Duty Trucks 2005-2006 HUMMER H2 2006 HUMMER H3 2005-2006 Saab 9-7X with 4L60-E, 4L65-E, 4L80-E or 4L85-E Automatic Transmission (RPOs M30, M32, M33, MT1, MN8) 1. With the ignition switch in the RUN position, test for battery voltage at the circuit fuse in the transmission solenoid power supply circuit. Refer to the appropriate SI Document for the transmission solenoid power supply circuit information. 2. If battery voltage is present at the fuse, inspect the ignition voltage circuit between the fuse and the transmission for possible opens. 3. If battery voltage is not present at the fuse, test for continuity between the fuse and the ignition switch. If NO ontinuity is between the fuse and the ignition switch, repair the open in that circuit. 4. If you have continuity between the fuse and the ignition switch, the most likely cause is the ignition switch. Replace the ignition switch using the appropriate Ignition Switch Replacement procedure in SI. Refer to group number 2.188 of the parts catalog for part description and usage of the ignition switch. Warranty Information (excluding Saab U.S. Models) For vehicles repaired under warranty, use: Warranty Information (Saab U.S. Models) For vehicles repaired under warranty, use: Labor Operation Description Labor Time N6630 Wiring and/or Connector, Transmission – Repair Use published labor operation time Labor Operation Description Failed Object Fault/Reason Code Location Code Warranty Type Repair/Action Code Labor Time 3711401 Replace part, Adj., Wiring Harness, A/T Incl. diagnosis time 2005 37114 67 0 01 05 Use published labor operation time

2004 Chevrolet TrailBlazer Noise Coming From Instrument Panel Cluster (Replace Instrument Panel Cluster (IPC)) Repair Manual

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This bulletin is being revised to add model years and provide important repair information. Please discard Corporate Bulletin Number 04-08-49-015 (Section 08 — Body and Accessories). Condition Some customers may comment on a noise coming from the instrument panel cluster (IPC) while driving or on initial start-up. Instrument clusters may contain stepper motor gages that can make noise during the following conditions: Subject: Noise Coming From Instrument Panel Cluster (Replace Instrument Panel Cluster (IPC)) Models: 2003-2005 Buick LeSabre 2003-2007 Buick Rendezvous 2004-2005 Buick Rainier 2003-2006 Cadillac Escalade, Escalade ESV, Escalade EXT 2003-2005 Chevrolet Cavalier, Impala, Monte Carlo 2003-2006 Chevrolet Avalanche, Suburban, Tahoe, TrailBlazer EXT 2003-2007 Chevrolet Silverado Classic, TrailBlazer 2003-2007 Chevrolet Kodiak Models 2004-2006 Chevrolet SSR 2003-2006 GMC Envoy XL, Yukon, Yukon XL 2004-2005 GMC Envoy XUV 2004-2007 GMC Envoy 2003-2007 GMC Sierra Classic 2003-2004 Oldsmobile Bravada 2003-2005 Pontiac Aztek, Bonneville, Sunfire 2003-2005 HUMMER H2 Attention: Appropriate repair is based on vehicle build date. Use GMVIS to determine the vehicle build date. • Initial startup (gages zero/reset)

Ford Windstar 3.8L The battery light is on but the alternator is charging Service Manual

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Procedures 1. Disconnect the alternator and the Powertrain Control Module (PCM). Check the Violet (VT) (GENerator MONitor or GENMON) wire from the alternator to pin 20 of the PCM connector and the Red/Pink (RD/PK) (GENerator COMmand or GENCOM) wire from the alternator to pin 45 of the PCM for high resistance, an open, or a short to ground. Repair the wiring as needed. 2. If the wiring checks OK, reconnect the PCM and alternator. Start the engine and monitor the VT wire for a roughly 0-10v square wave signal. The signal will be around 40-50% normally with no loads on the system and minimal charging system output. As the load increases, the duty cycle should increase (NOTE: the duty cycle is a positive duty cycle so as the duty cycle increases, the voltage high time increases). 3. If there is no signal on the wire, disconnect the alternator and with key on check the VT wire for roughly 9-10v from the PCM. If OK, jump the Orange/Light Blue (OG/LB) wire to battery voltage and recheck operation with everything connected. This wire should be battery voltage at all time. If the OG/LB wire has battery voltage, the VT wire shows voltage from the PCM but there is no signal on it with the alternator charging, suspect a faulty, defective or incorrect alternator

2002 Land Rover Freelander (LN) Camshaft Timing Belt Service Repair

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Service Repair No – 12.65.18 Remove 1. Disconnect battery earth lead. 2. Remove ancillary drive belt . 3. Remove RH front road wheel. 4. Remove 3 bolts securing RH splash shield to body and remove shield. 5. Remove 3 bolts securing camshaft timing belt LH rear cover and remove cover. 6. Rotate crankshaft in a clockwise direction and align the engine “SAFE” position, notch on crankshaft pulley aligned to the “ARROW” on front mounting plate and the timing marks aligned on the rear camshaft gears as illustrated 7. Remove bolt securing PAS pipe to engine front mounting plate. 8. Remove 3 Torx screws securing PAS pump pulley and remove pulley. Zoom Sized for Print Zoom Sized for Print Zoom Sized for Print 9. Remove 3 bolts securing PAS pump to front mounting plate and tie pump aside. 10. Release alternator battery lead terminal cover, loosen terminal nut and disconnect lead from terminal. 11. Disconnect multiplug from alternator. 12. Remove lower bolt and upper nut and bolt securing alternator to front mounting plate. 13. Remove alternator. 14. Remove Torx screw securing idler pulley to front mounting plate and remove pulley 15. Loosen bolt securing lower engine steady to front subframe. 16. Remove bolt securing lower engine steady to sump mounting, release lower engine steady from sump mounting. 17. Remove 3 bolts securing camshaft timing belt RH front cover and remove cover 18. Remove 3 bolts securing camshaft timing belt LH front cover and remove cover. 19. Assemble LRT-12-161 to LRT-12-199 and secure with clamp bolt. 20. Insert LRT-12-161 with LRT-12-199 into crankshaft pulley, loosen and remove pulley bolt. 21. Remove special tool from crankshaft pulley and remove crankshaft pulley. 22. Remove 3 bolts securing camshaft timing belt lower cover to cylinder block and remove cover. 23. Remove 2 bolts securing ancillary drive belt tensioner and remove tensioner. 24. Note fitted position of heat shield on A/C compressor and remove 3 bolts securing A/C compressor to front mounting plate and cylinder block. Release A/C compressor and heat shield and position aside. 25. Drain engine oil.

1989 Toyota 4Runner ALTERNATOR AND REGULATOR – NIPPONDENSO

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ON-VEHICLE TESTING NO LOAD TEST 1) Disconnect alternator terminal “B” wire. Using an ammeter and voltmeter, connect negative ammeter lead to disconnected alternator terminal “B” wire and positive lead to alternator terminal “B”. Connect voltmeter positive lead to alternator terminal “B” and negative lead to ground. See Fig. 1. Fig. 1: Charging Circuit Testing Courtesy of Toyota Motor Sales, U.S.A., Inc. 2) Start engine and increase engine speed to 2000 RPM. Voltmeter and ammeter should read according to specification. See ALTERNATOR OUTPUT SPECIFICATIONS table. 3) If voltage is more than specified, replace IC regulator. If voltage is less than specified, ground “F” (full field) terminal. See Fig. 2, 3 or 4. 4) If voltage now climbs above specified range, replace IC regulator. If voltage remains below specified range, repair or replace alternator. ALTERNATOR OUTPUT SPECIFICATIONS @ 2000 RPM pplication Amps (1) Volts Cressida …………………. 10 ………………… 14.0-15.0 Land Cruiser ……………… 10 ………………… 13.8-14.4 All Others ……………….. 10 ………………… 13.9-15.1 (1) – With temperature at 77F (25C). Fig. 2: Alt Full Field Output Test (Camry, Celica, Corolla 4A-GE, Cressida, MR2, Supra) Courtesy of Toyota Motor Sales, U.S.A., Inc. Fig. 3: Alt Full Field Output Test (Corolla 4A-F 4A-FE, Land Cruiser, Pickup, 4Runner)