Filed Under (Chevrolet) by admin on 30-12-2010
Automatic Transmission/Torque Converter Clutch (TCC) Shudder, Water in Transmission (Repair Transmission and Replace Transmission Filler Tube, Level Indicator and Seal) Condition Some customers may comment on a shudder condition at approximately 64-80 km/h (40-50 mph) when the TCC engages. Cause This condition may be caused by water in the automatic transmission fluid (ATF). Water may enter the transmission by dripping from the cowl area onto the handle of the transmission fluid level indicator. Indications of water in the ATF may include: • Visible rust on the transmission fluid level indicator. • Visible water in the oil pan. • A milky white substance inside the pan area. • Spacer plate gaskets that appear to be glued to the spacer plate, valve body or case. • Rust on internal transmission iron/steel components. Correction First, repair the transmission and second, replace the transmission fill tube, seal and level indicator to prevent repeat water contamination of the ATF. Transmission Repair 1. Remove the transmission. Refer to the appropriate SI procedure. 2. Disassemble and inspect the transmission. Refer to Unit Repair Automatic Transmission – 4L60-E/4L65-E. Important: If water or coolant is found in the transmission, the following components MUST be replaced. • Replace all of the rubber type seals. • Replace all of the composition-faced clutch plate assemblies including the band. • Replace all of the nylon parts (Thrust Washers). • Replace the torque converter. • Thoroughly clean and rebuild the transmission, using new gaskets and oil filter. • Flush and flow check the transmission oil cooler using J 45096. Refer to Corporate Bulletin Number 02-07-30- 052C or newer – Automatic Transmission Oil Cooler Flush and Flow Test Essential Tool J 45096 TransFlow . Replace the Transmission Fluid Filler Tube, Seal and Fluid Level Indicator WITH the transmission REMOVED from vehicle. 1. Remove the transmission fluid filler tube from the transmission. 2. Replace the transmission fill tube seal, P/N 1259475. 3. Replace the transmission fill tube, P/N 15000220, following the appropriate SI Document for Transmission Installation. 4. Replace the transmission fluid level indicator, P/N 15069769 when appropriate during the transmission installation. Replace the Transmission Fluid Filler Tube, Seal and Fluid Level Indicator with the transmission in the vehicle. 1. Remove the air cleaner outlet duct. Refer to Air Cleaner Element Replacement (SI Document ID# 1364496). 2. Remove the transmission fluid level indicator from the filler tube.
Filed Under (Ford) by admin on 14-03-2011
1. NOTE: To prevent cable damage, do not apply force to the transmission shift cable assembly between the steering column shift tube bracket and the steering column bracket. Disconnect the transmission shift cable from the steering column. 1. Disconnect the transmission shift cable from the steering column shift tube lever. 2. Carefully lift the locking tab and disconnect the transmission shift cable from the steering column bracket. 2. Disconnect the cable push pin from the stud in the bulkhead. 3. Push the rubber grommet and transmission shift cable through the bulkhead. 4. Raise and support the vehicle. For additional information, refer to Section 100-02. 4R100 transmission 5. NOTE: To prevent shift cable assembly damage, do not apply force to the transmission shift cable between the manual control lever and the transmission shift cable bracket. Remove the transmission shift cable from the transmission. 1. Disconnect the transmission shift cable from the manual control lever. 2. Depress the lock tabs to release the transmission shift cable and disconnect the transmission shift cable from the transmission shift cable bracket. 6. Remove the shift cable bracket from the transmission. 1. Remove the bolts. 2. Remove the shift cable bracket. 7. To install, reverse the removal procedure. Adjust the shift cable. For additional information, refer to Cable and Bracket Adjustment—4.2L, 4.6L with 4R70W Transmission or Cable and Bracket Adjustment—5.4L, 6.8L, 7.3L Diesel With 4R100 Transmission in this section.
Filed Under (Ford) by admin on 18-02-2011
1. NOTE: Make sure the parking brake control is fully released. Relieve the tension on the parking brake system. 1. Pull the front parking brake cable and conduit. 2. Insert a suitable retainer. 2. CAUTION: Do not use heat to loosen a seized lug nut (1012). Heat can damage the wheel and the wheel bearings. Remove the rear wheels and tires; loosen the lug nuts. 1. Remove the center cap. 2. With the weight of the vehicle on the wheels, loosen, but do not remove, the lug nuts. 3. 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 REAR JACK STORAGE 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. Raise and support the vehicle; refer to Section 100-02 . 4. Remove the tire and wheel assembly. 1. Remove the lug nuts. 2. Remove the tire and wheel assembly. 5. Disconnect the (A) parking brake intermediate cable from the (B) parking brake rear cable and conduit, LH. 6. Separate the (A) RH parking brake rear cable and conduit from the (B) LH parking brake rear cable and conduit at the (C) parking brake cable equalizer. 7. Remove the RH parking brake rear cable and conduit from the parking brake cable bracket (2530). 1. Compress the parking brake cable clip. 2. Remove the RH parking brake rear cable and conduit from the parking brake cable bracket. 8. Remove the RH parking brake rear cable and conduit to LH parking brake rear cable and conduit clip. 9. Remove the (A) RH parking brake rear cable and conduit from the (B) rear parking brake cable retainer (2A709). 10. Remove the RH parking brake rear cable and conduit to the RH hydraulic brake line clip. 11. Remove the parking brake cable retainer clip (2A826). 1. Remove the parking brake cable retainer clip bolt. 2. Remove the parking brake cable retainer clip. 12. Unclip the parking brake rear cable and conduit from the brake line clip on top of the rear axle housing.
Filed Under (Ford) by admin on 19-02-2011
NOTICE: Whenever a transmission has been disassembled to install new parts, the transmission fluid cooler tubes must be cleaned and backflushed using a suitable torque converter/fluid cooler cleaner. A new Oil-To-Air (OTA) transmission fluid cooler must also be installed. When internal wear or damage has occurred in the transmission, metal particles, clutch plate material or band material may have been carried into the torque converter and fluid cooler. These contaminants are a major cause of recurring transmission concerns and must be removed from the system before the transmission is put back into service. NOTE: After the transmission is removed for a major overhaul, it is important to completely clean all transmission components, including torque converter, cooler inlet tube, main control valve body, clutches and all coasting booster valve shuttle balls after any transmission service that generates contamination. These contaminants are a major cause for recurring transmission concerns and must be removed from the system before the transmission is returned to service. The cleaning of foreign material from the direct clutch check ball is often omitted. This omission can lead to a repeat servicing of the transmission. A new Oil-To-Air (OTA) transmission fluid cooler must be installed under the following condition. For additional information, refer to Section 307-02. Evidence of broken transmission components or transmission fluid contamination found due to the following transmission or converter failure modes: Major metallic failure Multiple clutches or clutch plate failure Sufficient component wear which results in metallic contamination 1. Disconnect the battery ground cable. For additional information, refer to Section 414-01. 2. WARNING: Before servicing a vehicle equipped with a fire suppression system, depower the system by following the procedure in Section 419-03. Failure to follow the instructions may result in serious personal injury. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section 100-02. 3. NOTE: Only if transmission disassembly or replacement is required, drain the transmission fluid. For additional information, refer to Fluid Pan, Gasket and Filter in this section. Drain the transmission fluid. Loosen the transmission fluid pan bolts and allow the transmission fluid to drain. After transmission fluid has drained remove the bolts and the pan and drain the remaining transmission fluid that is in the pan. 4. Install the transmission fluid pan and the old transmission fluid pan gasket. 1. Position the transmission fluid pan gasket. 2. Position the transmission fluid pan. 5. NOTE: To maintain the initial driveshaft balance, mark the rear driveshaft yoke and the axle pinion flange so they can be installed in their original positions. Mark the rear driveshaft yoke and the axle pinion flange and remove the 4 bolts.
Filed Under (Subaru) by admin on 02-01-2011
It may seem obvious, but the first step in the job is to disconnect the battery after recording the customer’s radio station presets. Even a manual transmission has a surprising number of wires attached to and surrounding it. Why take the chance of damaging anything due to an accidental short circuit? Remove the resin ‘pitching stopper’ and its bracket on the transmission. This step is necessary for the engine and transmission to drop far enough to clear the firewall during transmission removal. A special tool (P/N 927670000) is available to support the engine once the transmission has been removed, but you can replace the clutch without this aid. Many manual transmission Subaru vehicles are also equipped with the Hill- Holder system. This system lets the driver remove his right foot from the brake pedal after applying the brakes to stop on an incline of more than three degrees. This prevents ‘rollback’ when engaging the clutch to move the vehicle forward on a hill. The Hill-Holder cable shown here below the conventional clutch cable links the clutch pedal to the Hill-Holder pressure hold valve (PHV). Loosen both cables and remove their bracket from the transmission. Several electrical connectors are located at the top right side of the transmission (neutral position switch, back-up light switch, speed sensor, etc.). The connectors are color-coded, so it’s a simple matter to disconnect them and move them aside. Also remove the upper transmission mounting bolts, assorted brackets, main battery ground cable and the starter motor at this time. This transmission ground cable can easily escape notice. The other end of the cable is unreachable from above the transmission. A transmission case bolt must be removed to remove the ground wire at the transmission, so removing it at the body makes more sense to avoid the risk of a leak. Position the cable out of the way so it doesn’t snag on anything during transmission removal.