how to remove intake throttle body of gs 300 lexus
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Filed Under (Honda) by admin on 17-03-2011
SYMPTOM When the engine is first started after the vehicle has sat overnight, customers may “feel” the release of the throttle plate through the accelerator pedal. Some describe it as a one-time “pop” sensation. Customers may have trouble explaining this phenomenon because: They can’t repeat it because it only happens one time, when the engine is cold. The accelerator pedal works normally at all other times. There are no other symptoms. It may be intermittent, happening only during cooler weather. PROBABLE CAUSE The symptom is caused by normal buildup of contaminants in the throttle bore, combined with expansion and contraction of the throttle body. CORRECTIVE ACTION Partially remove the throttle body, and clean it with Honda carburetor cleaner or throttle plate and induction cleaner. REPAIR PROCEDURE 1. Remove the breather tube from the air intake duct, unclip the vacuum lines from the duct, and remove the duct from the throttle body. See Fig. 1 . Fig. 1: Removing Air Intake Duct 2. Disconnect the TPS and MAP connectors from the throttle body. 3. Remove the throttle cable and, if equipped, the cruise control actuator cable from the throttle body. 4. Remove the throttle body mounting nuts and bolts, then slide the throttle body off its studs on the intake manifold chamber. Leave the coolant hoses connected. See Fig. 2 . 5. Put a shop towel under the throttle body, open the throttle, then clean out any contaminants from the intake manifold side of the throttle body with carburetor cleaner or throttle plate and induction cleaner. See Fig. 3 . NOTE: To avoid damaging the idle air control valve (IACV), spray the cleaner through the back of the throttle body, not the front.
Filed Under (Mitsubishi) by admin on 30-12-2010
Disassembly (Ram-50) 1) Remove both 4WD indicator switches and steel balls. Remove speedometer gear assembly. Remove output shaft cover, gasket, wave spring and spacer. See Fig. 3. Remove rear cover, rear cover gasket and spacer from chain cover. Drive roll pin out of high-low shift fork. 2) Remove 2 seal plugs. Remove 2 poppet springs and steel balls. Shift transfer case to “4WD” and pull high-low shift rail out, in rear cover direction. Remove interlock plunger. Remove pulse generator (if equipped), front output shaft cover and pulse rotor (if equipped). Remove snap ring from rear bearing on output shaft. Remove chain cover, oil guide and side cover. Remove countershaft locking plate. Remove countershaft. 3) Remove countergear, 2 thrust washers, 2 needle bearings and spacer through side cover opening. Remove snap ring, spring retainers and spring from 2WD-4WD shift rail. Remove front output shaft, rear output shaft and chain as assembly. 4) Remove 2WD-4WD shift fork and distance piece. Drive out 2WD-4WD shift rail spring pin. Remove 2WD-4WD shift rail and lug. Remove high-low shift fork and high-low synchronizer sleeve. Remove needle bearing and snap ring from input gear. Remove input gear assembly. 5) If either control shaft or input gear oil seals are to be replaced, drive out roll pin from transmission control change shifter. Separate transfer case from adapter. See Fig. 3. Disassembly (Montero) 1) Remove dynamic damper, 5 detection switches and 3 steel balls. Remove poppet plug, spring and steel ball. Remove speedometer gear assembly. Remove output shaft rear cover, spacers, dust seal guard and oil seals. Front output shaft cover, wave spring and spacer (if equipped). 2) Remove high-low shift rail plug and high-low shift fork spring pin. Shift transfer case to “4WD”. Remove rear cover and high- low shift rail. Remove interlock plunger. Remove rear output shaft (viscous coupling) assembly and center differential assembly. Remove 2WD-4WD synchronizer assembly, chain and front output shaft from transmission as a unit. With White paint make match marks in grooves of 2WD-4WD synchronizer in 3 places. With White paint make match marks on spline projections of 2WD-4WD synchronizer sleeve in 3 places. Refer to match marks during reassembly. 3) Remove snap ring, spring seat, spring, 2WD-4WD shift fork and 2WD-4WD synchronizer sleeve. Remove differential lock hub, oil dam cover and bearing retainer. Remove side cover and gasket. Remove transfer counter gear shaft, transfer counter gear, thrust washer, needle bearings and spacer. Remove transfer drive shaft assembly. Remove high-low shift fork assembly and clutch sleeve. Remove transfer input gear assembly. 4) Remove 2WD-4WD shift lug spring pin, spring, spring retainer 2WD-4WD shift lug and shift rail. Remove input gear oil seal, baffle plate, dust seal guard and front output shaft oil seal. See Fig. 4.
Filed Under (Ford) by admin on 27-01-2011
ISSUE Some 2005-2009 Escape Hybrid and 2006-2009 Mariner Hybrid vehicles may exhibit an intermittent Red Triangle On and Stop Safely Now message displayed on the message center accompanied by a sudden RPM loss/no start symptom with a diagnostic trouble code (DTC) P1A0C. Vehicles may exhibit this symptom on the first start of the morning or after an extended idle. The symptom will clear on the next key cycle. ACTION Follow the Service Procedure steps to correct the condition. SERVICE PROCEDURE For vehicles outside the new vehicle limited warranty, if diagnostics lead to replacing the throttle body you may use this procedure to clean the throttle body as an alternative to replacing it. This procedure is not covered by the new vehicle limited warranty. NOTE THIS CLEANING PROCEDURE CAN ONLY BE USED ON NON-COATED THROTTLE BODIES. Refer to Workshop Manual, Section 303-04C Removal and Installation – Throttle Body. 1. Remove the throttle body. 2. With the throttle body positioned to the side, open the throttle plate. 3. Using Motorcraft® Choke and Linkage Cleaner or equivalent, spray the throttle body plate and bore. 4. Using a suitable (nylon) brush, clean the edges of the throttle plate and the mating surface of the throttle bore to remove all carbon build up. 5. Reapply Motorcraft® Choke and Linkage Cleaner or equivalent and wipe clean with a lint-free cloth. 6. Remove old throttle body gasket and discard. Install a new throttle body gasket. 7. Install the throttle body.
Filed Under (Lexus) by admin on 01-10-2010
Throttle Body And TPS – Remove throttle body, refer to COMPONENT REPLACEMENT AND REPAIR PROCEDURES. Throttle Stop Screw – Check that there is no clearance between throttle stop screw and lever with throttle plate in the fully closed position. TPS Screws – Loosen throttle position sensor set screws. TPS Adjustment Connect ohmmeter across throttle sensor terminals E2 and IDL. – Insert a 0.0157 in (0.40 mm) feeler gauge between throttle stop screw and lever. TPS Adjustment – Slowly turn sensor clockwise until ohmmeter shows no continuity. – Tighten sensor set screws. – Check adjustment with the following feeler gauges and note ohm reading: 0.010 in (0.25 mm) – Continuity 0.0335 in (0.85 mm) – No continuity – If desired results cannot be achieved, readjust sensor. If readings still cannot be achieved, replace sensor.
Filed Under (Ford) by admin on 06-03-2011
1. Disconnect battery ground cable (14301) . 2. Remove two console armrest mounting access covers (047A62) at rear of console panel (045A36) (snaps out) to gain access to armrest retaining bolts. 3. Remove four armrest-to-floor bracket retaining bolts and remove armrest assembly (snaps out of console). 4. Remove console panel gear shift plate (044G24) (snaps out). On vehicles equipped with manual transmissions, shift boot is attached to bottom of finish panel. Remove shift knob and slide boot and console panel gear shift plate up shift lever to remove. 5. To remove top finish panel position emergency brake lever in the UP position. Remove four retaining screws and lift top finish panel up. Disconnect necessary wire connectors. 6. Remove two console-to-rear floor bracket retaining screws. 7. Insert a small screwdriver into two notches at bottom of front upper finish panel and snap out. 8. If the vehicle has a radio chassis (18806) , the radio chassis must be removed. Refer to Section 15-01. If the vehicle doesn’t have a radio chassis , use a small screwdriver and pry radio cover finish panel out of console. 9. Flex glove compartment bin tabs inward. Drop down glove compartment (06010) assembly. Remove two console-to-instrument panel retaining screws. 10. Remove four console bracket retaining screws. Remove console panel from vehicle. 11. Remove three bolts retaining steering column opening cover (3A673) and reinforcement panel. Remove cover. 12. Remove steering column opening reinforcement by removing two bolts. 13. Remove two bolts retaining steering column opening reinforcement and remove reinforcement. 14. Remove six steering column retaining nuts (two retaining the hood release mechanism and four retaining column to lower brake pedal support). Lower steering column to floor. 15. Remove upper and lower steering column shrouds (3530) and disconnect wiring from turn signal and windshield wiper switch (13K359) . 16. Remove steering column through bolt and nut on engine compartment side of cowl panel. Remove steering column from vehicle. 17. Remove brake pedal support nut. 18. Snap out instrument panel defroster opening grille (044E82) . 19. Remove screws from speaker covers. Snap out speaker covers. 20. Remove front screws retaining RH and LH scuff plates at cowl side trim panels. 21. Remove RH and LH cowl side trim panels. 22. Disconnect wiring at RH cowl side. 23. Remove cowl side retaining bolts (one each side). 24. Remove five cowl top screws attachments. 25. Gently pull instrument panel (04320) away from RH side of cowl panel. Disconnect speedometer cable, air conditioning controls and wire connectors. 26. Place a drain pan or suitable container under the heater water hose connections at the cowl panel. 27. Disconnect heater water hoses (18472) from heater core tubes and plug heater water hoses with suitable 5/8-inch and 3/4-inch plugs. Cap heater core tubes to prevent coolant loss from heater core (18476) during removal of heater case. 28. Remove screw retaining A/C evaporator case support bracket (19A639) to cowl top panel. 29. Disconnect vacuum supply supply hose (black) from A/C vacuum supply in engine compartment. 30. Working under the hood (16612) , remove nut retaining heater case to cowl panel. 31. Inside passenger compartment, remove screw retaining A/C evaporator case mounting bracket (19A865) to cowl top panel. 32. Remove one screw retaining A/C evaporator case mounting bracket below heater case to cowl panel. 33. Carefully pull heater case from cowl panel and remove heater case assembly from vehicle. 34. To install, reverse Removal procedure. Check operation of all components. 35. After repairs have been completed, check the coolant level in the radiator (8005) and in the radiator coolant recovery reservoir (8A080) . Fill as required with the recommended coolant mixture.