bmw n62 motor diagram
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Filed Under (BMW) by admin on 11-06-2010
1. Use a scan tool to monitor the fuel trim numbers and the Mass Air Flow (MAF) sensor data stream grams/sec readings. Nominal
values are 5 grams/sec at idle in Park, and >150 at Wide Open Throttle (WOT) and 5000 RPM, in gear. Some scan tools have a freeze frame feature, which is useful in trouble shooting if the problem is set at idle versus at cruise. Vacuum leaks and crankcase breather problems generally show up at idle. Voltage at the airflow meter should be .7-.9V at idle and increase from there with more airflow. 2. Monitor the crankcase vacuum with a vacuum gauge, which can be adapted onto the tube for the oil dipstick. Specification for the crank case vacuum is 8 to 15 millibar, this equals about 1/4 to 1/2 PSI or pounds per square. So, 1 PSI of vacuum would be twice as much as there should be at idle. The proper method, per BMW, is to use a slack tube manometer which can be made easily with clear tubing and making it into a U shape and have it marked in inch increments then half fill it with water. When crankcase vacuum is applied to one side of the tubing it should displace 4 to 6 inches of water if the crankcase breather is working correctly. 3. Monitor the fuel pressure. It should be a constant 50 – 53 PSI.
Filed Under (Cadillac) by admin on 30-09-2010
1. 2. 3. 4. 5. 6. Remove the right side sound insulator. Pull back the carpet near the blower motor. Remove the IP compartment. Remove the dash integration module from the bracket. Remove the two rear dash integration module bracket fasteners. Reposition the dash integration module bracket in order to remove the blower motor. 7. Disconnect the electrical connector (2) from the blower motor. 8. Remove the blower motor retaining fasteners (1). 9. Rotate and remove the blower motor from the vehicle. INSTALLATION PROCEDURE Rotate the blower motor in order to install the blower motor into the housing. 1. Install the blower motor into the blower motor housing. 2. Ensure that the blower motor gasket is properly aligned. NOTE: Refer to Fastener Notice in Service Precautions. 3. Install the blower motor retaining screws (1). Tighten Tighten the screws to 1.4 N.m (12 lb in). 4. Connect the electrical connector (2) to the blower motor.
Filed Under (Buick) by admin on 18-11-2010
1. Remove the rear wiper arm (5). 2. Remove the rear wiper motor drive shaft nut (6). 3. Remove the washer (7) and seal (8) from the wiper motor drive shaft. 4. 5. 6. 7. 8. Remove the liftgate trim panel. Disconnect the electrical connector (1) from the rear wiper motor. Remove the rear wiper motor screws. Remove the rear wiper motor (3) from the liftgate (5). Remove the rear wiper motor from the vehicle. Installation Procedure 1. Position the rear wiper motor (3) to the liftgate. Notice: refer to Fastener Notice. 2. Install the rear wiper motor screws. Tighten the screws to 6 N.m (53 lb in ). 3. Connect the electrical connector (1) to the wiper motor. 4. Install the washer (7) and seal (8) onto the rear wiper motor drive shaft. 5. Install the rear wiper motor drive shaft nut (6). Tighten the nut to 6 N.m (53 lb in ). 6. Install the rear wiper arm. 7. Inspect rear wiper for proper operation. 8. Install the liftgate trim panel.
Filed Under (Ford) by admin on 03-04-2011
Starter Motor Removal WARNING: WHEN PERFORMING MAINTENANCE ON THE STARTING SYSTEM BE AWARE THAT HEAVY GAUGE LEADS ARE CONNECTED DIRECTLY TO THE BATTERY. MAKE SURE PROTECTIVE CAPS ARE IN PLACE WHEN MAINTENANCE IS COMPLETE. WARNING: THE ELECTRICAL POWER TO THE AIR SUSPENSION SYSTEM MUST BE SHUT OFF PRIOR TO HOISTING, JACKING OR TOWING AN AIR SUSPENSION VEHICLE. THIS CAN BE ACCOMPLISHED BY TURNING OFF THE AIR SUSPENSION SWITCH LOCATED IN THE RH KICK PANEL AREA. FAILURE TO DO SO MAY RESULT IN UNEXPECTED INFLATION OR DEFLATION OF THE AIR SPRINGS WHICH MAY RESULT IN SHIFTING OF THE VEHICLE DURING THESE OPERATIONS. 1. Disconnect the battery ground cable. 2. Raise and support the vehicle; refer to Section 100-02 . 3. Remove the starter motor solenoid terminal cover (11N087). 4. NOTE: The 4.6L engine is shown; the 5.4L engine is similar. Disconnect the starter motor electrical connections. 1. Remove the nuts. 2. Remove the battery cable. 3. Remove the starter solenoid wire. 5. NOTE: The 4.6L engine is shown; the 5.4L engine is similar. Remove the (A) starter motor ground cable nut and the (B) starter motor ground cable. 6. Remove the starter. 1. Remove the two bolts. 2. Remove the starter. Installation WARNING: WHEN PERFORMING MAINTENANCE ON THE STARTING SYSTEM BE AWARE THAT HEAVY GAUGE LEADS ARE CONNECTED DIRECTLY TO THE BATTERY. MAKE SURE PROTECTIVE CAPS ARE IN PLACE WHEN MAINTENANCE IS COMPLETE. 1. Install the starter motor. 1. Position the starter motor. 2. Install the two bolts. 2. NOTE: The 4.6L engine is shown; the 5.4L engine is similar. Connect the (A) starter motor ground cable and install the (B) starter motor ground cable nut. 3. NOTE: The 4.6L engine is shown; the 5.4L engine is similar. Connect the starter motor electrical connections. 1. Position the starter solenoid wire. 2. Position the battery cable. 3. Install the two nuts. 4. Install the starter motor solenoid terminal cover. 5. NOTE: If equipped with air suspension, reactivate the system by turning on the air suspension switch. Lower the vehicle. 6. NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 mi) or more to relearn the strategy. Connect the battery ground cable.
Filed Under (Buick) by admin on 17-12-2010
Condition Some customers may comment on an inoperative or intermittent Heating, Ventilation and Air Conditioning (HVAC) blower motor. Others may comment that the blower motor speed may momentarily drop or that the blower motor continues to run after the key is turned off. Cause This condition may be caused by a voltage spike from the wiper motor. The voltage spike may cause a logic lock up in the blower motor control module that may be either momentary or permanent. Correction DO THIS DON’T DO THIS Install a Capacitor at the Blower Motor Control Module Connector Technicians are to install a capacitor, P/N 25073556, at the blower motor control module connector using the following procedure: 1. Disconnect the negative cable from the battery. Refer to the Battery Negative Cable Disconnect/Connect procedure in the Engine Electrical section of SI. 2. Remove the right closeout/insulator panel. Refer to the Closeout/Insulator Panel Replacement-Right procedure in the Instrument Panel, Gages and Console section of SI. DO NOT replace the Blower Motor Control Module, Blower Motor or the HVAC Control Head