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Filed Under (Chevrolet) by admin on 18-06-2010
DESCRIPTION Cruise control system components include cruise control module (control module and electric stepper motor servo combined), cruise control switch, vehicle speed sensor, and brake and clutch release switches. A vehicle speed sensor buffer is used on 1991 Motorhome and 1992 vehicles. CRUISE CONTROL MODULE Cruise control module is mounted on upper radiator support, to left of radiator (Motorhome), or next to master cylinder (all others). See Fig. 1 . Module incorporates an electronic control module and an electric stepper motor servo. Servo regulates throttle position in response to control module commands. Module is not serviceable.
Filed Under (Ford) by admin on 01-04-2011
Valve Bodies and Intermediate Band Servo NOTE: If a transmission has been disassembled to replace worn or damaged parts and the valve body sticks repeatedly from foreign material, the torque converter must be removed and cleaned by using a mechanically agitated cleaner, such as Rotunda Torque Converter/Oil Cooler Cleaner 014-00028 or equivalent. Removal If solenoid valve body is going to be replaced: Remove solenoid body connector heat shield and loosen both bolts using an 8mm socket. Remove slotted heat shield. CAUTION: Do not attempt to pry tab with pry bar or screwdriver. Remove the heat shield from the transmission before attempting to remove the connector. Remove solenoid body connector by pushing on the center tab and pulling on the wire harness. Check electrical connectors for terminal condition, corrosion and contamination. Repair or replace as required. 1. Position a drain pan under transmission. 2. Remove all transmission pan bolts except the front ones using a 10mm socket. Loosen only the front bolts at this time. 3. Pry the rear of the pan down and allow the fluid to drain. 4. Remove front pan bolts using a 10mm socket. Remove transmission pan. 5. Remove pump inlet filter and seal assembly by carefully pulling and rotating the filter as necessary. If seal remains in bore, carefully remove using O-Ring Tool T71P-19703-C. NOTE: Discard pump inlet filter and seal. CAUTION: Use care not to scratch or damage aluminum pump bore. 6. Remove 11 accumulator body bolts using an 8mm socket and two nuts using a 10mm socket. Remove accumulator body assembly. NOTE: If separator plate is to be left on the transmission, use one of the reinforcing plate bolts in the hole shown to prevent front of plate from sagging and displacing balls. 7. Remove 14 main control body bolts using an 8mm socket and two nuts using a 10mm socket. Remove main control body. NOTE: Do not remove the two bolts as shown on illustration. This will keep the upper and lower control bodies attached as an assembly. 8. Remove nine solenoid body bolts using a T30 Torx® bit and one nut using a 10mm socket. Push down on solenoid body receptacle to remove solenoid body. 9. Remove solenoid screen by rotating and pulling it out. 10. Remove reinforcing plate bolts using an 8mm socket. Remove plate. 11. Lower separator plate and gasket carefully so that check balls, EPC ball and spring are retained. 12. Remove intermediate accumulator regulator filter and spring assembly. Clean or replace filter as required. 13. Depress retaining plate, remove retaining ring, retaining plate, servo piston and rod assembly and servo spring. Installation
Filed Under (Vauxhall) by admin on 05-04-2011
Special Precautions Special Precautions Disconnect battery earth lead. DO NOT turn crankshaft or camshaft when timing belt removed. Remove glow plugs to ease turning engine. Turn engine in normal direction of rotation (unless otherwise stated). DO NOT turn engine via camshaft or other sprockets. Observe all tightening torques. Check diesel injection pump timing after belt replacement. Removal Removal 1. Support engine. 2. Remove: Air filter and air intake hoses. Auxiliary drive belts. RH engine mounting. Vacuum pipe bracket. Timing belt upper cover . 3. Turn crankshaft clockwise to TDC on No.1 cylinder. Ensure crankshaft sprocket timing marks aligned . 4. Insert M6 x 1,00 bolt in camshaft sprocket and M8 x 1,25 bolt in injection pump sprocket to lock sprockets in position . NOTE: If locating holes not aligned: Turn crankshaft one turn. 5. Remove: Crankshaft pulley (4 bolts). Timing belt lower cover . 6. Slacken tensioner bolts . Remove tensioner spring . 7. Move tensioner pulley away from belt. Lightly tighten bolts. 8. Remove timing belt. Installation Installation 1. 2. 3. 4. 5. Use crankshaft pulley to check TDC marks aligned . Ensure locking bolts located correctly . Fit timing belt in clockwise direction, starting at crankshaft sprocket. Ensure belt is taut between sprockets. Temporarily fit crankshaft pulley. Ensure timing marks aligned . Fit tensioner spring . Corsa-B/Corsavan/Combo: Slacken tensioner bolts . Allow tensioner to operate. Remove locking bolts . Tighten tensioner bolts to 19 Nm . Turn crankshaft slowly two turns clockwise. Ensure timing marks aligned . 6. Astra-F/Vectra/Cavalier: Slacken tensioner bolts . Temporarily fit crankshaft pulley. Remove locking bolts . Turn crankshaft 60° anti-clockwise (against normal direction of rotation) . Tighten tensioner bolts to 19 Nm . Turn crankshaft slowly two turns + 60° clockwise until timing marks aligned . 7. 8. 9. 10. 11. Ensure timing marks aligned . Ensure locking bolts can be inserted in sprockets . If not: Repeat tensioning procedure. Remove crankshaft pulley. Fit timing belt lower cover . Fit crankshaft pulley. Tighten bolts to 20 Nm. Install components in reverse order of removal.
Filed Under (Ford) by admin on 26-03-2011
1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section 100-02. 2. NOTE: If equipped, the transmission servo heat shield needs to be unclipped from the fluid pan rail and positioned out of the way for fluid pan removal. If equipped, loosen the nut and position the heat shield out of the way. 3. Drain transmission fluid. Remove all the transmission fluid pan screws except for two in the front. Loosen the two front transmission fluid pan screws. Pry the rear of the transmission fluid pan down and allow fluid to drain. After fluid is drained, remove the front two transmission fluid pan screws. 4. Remove the transmission fluid pan. 1. Remove the transmission fluid pan. 2. Remove and discard the transmission fluid pan gasket. 5. Remove and discard the transmission fluid filter. 1. Remove the transmission fluid filter screw. 2. Remove the transmission fluid filter. 6. Unclip main control valve body wire harness. Lift up on wire harness guide and protector and disengage the retaining pins from the solenoid clamps. 7. Disconnect the six solenoid electrical connectors. 1. Disconnect the SSA, SSB, SSC and SSD electrical connectors. 2. Disconnect the torque converter clutch (TCC) solenoid electrical connector. 3. Disconnect the electronic pressure control (EPC) solenoid electrical connector. 8. Remove the manual control valve detent lever spring. 1. Remove the manual control valve detent lever spring screw. 2. Remove the manual control valve detent lever spring. 9. Remove the low/reverse servo. 1. Remove the low/reverse servo cover screws. 2. Remove the low/reverse band servo cover and gasket. Discard the low/reverse servo separator plate cover gasket. 10. Remove the low/reverse band servo piston and rod. 11. CAUTION: Support the main control valve body. Do not remove the two (gold) screws specified. 12. CAUTION: Support the main control valve body. Remove the screws. 13. Remove the main control valve body. Installation 1. Install the special tool into the transmission case. 2. Position the main control valve body, using the two special tools as a guide. 3. NOTE: The main control valve body screws will be tightened in later steps. Loosely install four M6 x 45 mm (1.8 in) screws.
Filed Under (Jeep) by admin on 22-04-2010
If vehicle is equipped with air bag, air bag must be deactivated before servicing cruise control components on or around steering column. See appropriate AIR BAG RESTRAINT SYSTEM article in ACCESSORIES & EQUIPMENT. NO CRUISE CONTROL WHEN SET BUTTON IS PRESSED & RELEASED Check for: blown fuse, no vacuum at servo and/or defective servo, disconnected speed control cable, brakelight switch out of adjustment, faulty electrical circuit, faulty Park/Neutral switch input to PCM, faulty PCM. CRUISE CONTROL ENGAGES WITHOUT ACTUATING CRUISE SET BUTTON Check for: defective servo, faulty electrical circuit or control switch. CRUISE CONTROL ENGAGES WHEN ENGINE IS STARTED Check for: defective servo, faulty electrical circuit. ERRATIC SPEED OR ENGINE SHUTS OFF Check for: poor engine performance (surge), defective vehicle speed sensor, vacuum leak, faulty servo, faulty
CRUISE CONTROL DISENGAGES ON ROUGH ROAD Check for: brakelight switch out of adjustment, faulty cruise control switch, faulty electrical circuit. ENGINE DOES NOT RETURN TO NORMAL IDLE Check for: kinked and/or damaged cruise control cable, faulty throttle linkage.