Filed Under (volkswagen) by admin on 16-03-2011
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During low speed turns/maneuvering, vehicle drivetrain feels as if it is binding or tires are scrubbing on pavement. Customer may also state that the ESP light in instrument cluster is ON or Flickering. Other customer described concerns may include, but are not limited to: • Tension in drivetrain • Vibration and load sensitive knocking from the drivetrain • Cracking noise upon acceleration from stop, while cornering or driving slowly • Shudder when cornering • Rubbing or slipping when cornering • Electronic faults in 22-Four wheel drive electronics: DTC’s 02033, 02039, 02042 or 02409 stored. The clutch disc of the differential has a remaining locking effect because of the differential control module software. This is perceived as tension in the drivetrain. Tip: The above symptoms can occur when driving with summer tires at temperatures below 7°C (45°F). In this temperature range the summer tires lose their elasticity. When fully turning the steering wheel the tire cannot correctly roll out and begins to bounce (slip – stick effect). This effect leads to the assumption of tension in the drivetrain, but the tension is in the tire wear pattern.
Filed Under (Ford) by admin on 25-10-2010
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Some vehicles may exhibit an axle whine or hum during acceleration, deceleration and/or cruise. ACTION An axle repair kit has been developed which incorporates most parts required for a comprehensive axle repair. The kit should be used instead of installing a complete axle assembly to repair an axle whine/hum. Replace Ring and Pinion with Axle Kit and Components.
Filed Under (Toyota) by admin on 24-10-2010
Tags: bearing,
clutch,
clutch disc,
diaphragm spring,
disc runout,
drivetrain,
flywheel,
rivet head,
spring tension,
toyota echo,
transaxle,
vernier calipers
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REMOVE TRANSAXLE FROM ENGINE 2. REMOVE CLUTCH COVER AND DISC a. Align the matchmark on the clutch cover with the one on the flywheel. b. Loosen each set bolt one turn at a time until spring tension is released. c. Remove the set bolts, and pull off the clutch cover with the clutch disc. NOTICE: Do not drop the clutch disc. 3. REMOVE RELEASE BEARING AND FORK FROM TRANSAXLE Remove the release bearing with the fork together and then separate them. 4. REMOVE RELEASE FORK SUPPORT AND BOOT INSPECTION 1. INSPECT CLUTCH DISC FOR WEAR OR DAMAGE Using vernier calipers, measure the rivet head depth. Minimum rivet depth: 0.3 mm (0.012 inch) If necessary, replace the clutch disc. 2. INSPECT CLUTCH DISC RUNOUT Using a dial indicator, check the disc runout. Maximum runout: 0.8 mm (0.031 inch) If necessary, replace the clutch disc runout. 3. INSPECT FLYWHEEL RUNOUT Using a dial indicator, check the flywheel runout. Maximum runout: 0.1 mm (0.004 inch) If necessary, replace the flywheel. Torque: 1st: 49 Nm ( 00 kgf-cm, 36 ft. lbs.) 2nd: Turn 90° 4. INSPECT DIAPHRAGM SPRING FOR WEAR Using vernier calipers, measure the diaphragm spring for depth and width of wear. Maximum: A (Depth): 0.5 mm (0.020 inch) B (Width): 6.0 mm (0.236 inch) If necessary, replace the clutch cover. 5. INSPECT RELEASE BEARING Turn the bearing by hand while applying force in the axial direction. HINT: The bearing is permanently lubricated and requires no cleaning or lubrication. If necessary, replace the release bearing. INSTALLATION 1. INSTALL CLUTCH DISC AND CLUTCH COVER ON FLYWHEEL
Filed Under (KIA) by admin on 14-09-2010
Tags: air cleaner,
air intake,
control cable,
dlc,
drivetrain,
intake tube,
kia sportage,
maf,
resonator,
throttle body,
throttle cable,
vacuum system
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CONDITION 4 wheel drive mode inoperative (diagnosed either during or after replacing knuckles and hub seals) due to insufficient vacuum being applied to the hubs. CAUSE In some cases moisture has entered the vacuum system, and vacuum lines have become corroded, plugged, or have developed a leak. CORRECTIVE ACTION Verify that with 4 wheel drive mode selected, vacuum is present at the T-fitting downstream from the solenoid (see photo). If not, diagnose and repair as required, otherwise use the following procedure to replace the vacuum lines: Note: Procedure applies to right side line; left side needs no further info. Disconnect and remove battery and battery tray. Leaving ground cables attached, remove clamp bracket from battery tray bottom and move out of the way. Remove plastic air resonator and disconnect throttle cable (plus A/T control cable if equipped). Disconnect MAF and IAC connectors, and 6 mm bolt holding DLC and MAF brackets to air cleaner housing. Disconnect air intake tube from throttle body, and MAF sensor from air
Filed Under (BMW) by admin on 05-09-2010
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Only open sealing cover on expansion tank when engine has cooled down. Drain coolant, refer to Cooling System – Service and Repair – Procedures See: Service and Repair Remove fan cowl, refer to Fan Shroud – Service and Repair – Procedures See: Fan Shroud/Service and Repair Note: When removing the fan cowl, note the engine variant. Air conditioner Disconnect plug connection on temperature switch. Disconnect upper water hose. Disconnect lower water hose. 2000 BMW Z3 Roadster 2.5 (E36/7) L6-2494cc 2.5L DOHC (M52 TU) Disconnect expansion hose. Automatic transmission Remove transmission oil cooler lines, catch transmission oil as it escapes and dispose of correctly. Installation: Check transmission oil level and correct if necessary, refer to Transmission and Drivetrain. Check connection for leaks. Unfasten left and right radiator mounts by pressing detent down with screwdriver. Sectional view of radiator mount: 1. Screwdriver 2. Front trim 3. Retaining lug for radiator