Pontiac g8 workshop service manual - _commodore_ve




















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Items 1 - 50 of Pontiac was a sub-brand of vehicles owned and produced by General Motors. Pontiac vehicles were created as an affordable-class line of vehicles, but were marketed just above Chevrolet. Pontiac has always been known for exceptional performance at a reasonable price. While you might not have considered it before, do-it-yourself DIY maintenance is great for fixing your own car!

Pontiac is part of the General Motors group, meaning many of the parts used to manufacture the vehicle are similar to other brands the group produces. This makes the cost of parts fairly cheap, but it also makes vehicles standardized and easier to repair. Pontiac has designed several iconic vehicles across more than 90 years of production.

Subtract H2 from H1. This is the clutch pack travel. Install the reverse clutch spacer Install the clutch plates and , starting with clutch plates with outer splines, alternating with clutch plates with inner splines. Install the reverse clutch backing plate Install the reverse clutch backing plate snap ring Measure the distance between the reverse clutch backing plate and the bottom of the gage bar.

Subtract H2 from H1 this is the clutch pack travel. Remove Remove Remove Remove Remove the the the the the reverse clutch backing plate snap ring Remove Remove Remove Remove the the the the Page 2 of 4 direct clutch backing plate snap ring Use J and J to compress the direct and reverse piston spring Remove the direct and reverse clutch spring snap ring Remove J and J Remove the spring retainer Remove the spring Remove the direct clutch piston Remove the reverse clutch piston Remove the reverse clutch piston inner seal Install the direct clutch housing hub thrust washer 9 into the housing Install the direct clutch hub housing 10 into the case.

Inspect the input shaft fluid seals , for damaged or worn seals. Slide J 2 over the input shaft, and position J 2 at the seal groove closest to the housing.

Coat J 2 with transmission fluid. Remove J 2. Install the input shaft fluid seals Size the seals , with J Leave J in place for at least five minutes.

If possible, leave J in place until you install the assembly into the transmission case. Use J to install the forward clutch piston Use J to install the coast clutch piston Use J to compress the spring and install the snap ring Measure the distance from the top of the forward clutch housing to the coast clutch piston , record this as dimension C.

Measure the distance from the top of the forward clutch housing to the forward clutch piston , record this as dimension B. Subtract dimension C from dimension B. This is now dimension A. Install the coast clutch backing plate into the coast clutch housing Install the coast clutch plates into the coast clutch housing Starting with the coast clutch plate with outer splines.

Alternating with the coast clutch plate with inner splines. Install the coast clutch apply plate into the coast clutch housing Install the coast clutch spacer plate into the coast clutch housing Measure the distance from the top of the coast clutch housing to the top of the coast clutch spacer plate , record this as dimension B.

Subtract dimension B from dimension A, this is clutch pack travel. Install the coast clutch spacer plate Install the coast clutch apply plate Install the coast clutch plates. Starting with the coast clutch plate with the outer splines. Install the coast clutch backing plate Install the coast clutch housing Install the forward clutch apply plate Install the forward clutch plates.

Starting with the forward clutch plate with outer splines. Alternating with the forward clutch plate with inner splines. Install the forward clutch backing plate Install the forward clutch backing plate snap ring Measure the distance between the forward clutch backing plate and the bottom of the gage bar.

Apply air pressure to the specified port. At this time you do not install the forward and coast clutch assembly into the transmission case. Set aside until told to do so. Remove the forward 2. Remove the forward 3. Remove the forward Specifications. Remove the forward clutch backing plate retainer ring Refer to Clutch Plate Selection apply plate Remove Remove Remove Remove Remove the the the the the coast coast coast coast coast Page 2 of 3 clutch housing Use the J to compress the forward and coast clutch spring Remove the snap ring Remove the clutch spring Important: It may be necessary to apply air pressure to remove the piston.

Remove the coast clutch piston Remove the forward clutch piston Remove the input shaft fluid seal Remove the input shaft fluid seals Install the J B onto the transmission. Install the transmission onto the holding fixture tool base and use the pin to lock the holding fixture in place. Using lubricant install the reaction internal gear flange washer Check that the 2nd clutch sprag rotation freewheels and locks up in the correct direction.

Install Install Install Install the the the the Page 3 of 3 2nd clutch sprag onto the input and reaction carrier Install the input and reaction carrier thrust bearing 20 into the case. Install the input and reaction carrier assembly 19 into the case. Remove Remove Remove Remove Remove the the the the the snap ring Remove the input and reaction carrier 19 from the case. Remove the input and reaction carrier thrust bearing 20 from the case. Inspect the sprag elements for flat spots.

Inspect the bearing cage for distortion or broken ribbon tabs. Inspect the inner bearing for cracks. Install the inner roller bearing Install the NEW inner race thrust ring Install the outer race washer onto the outer race Install the rataining rings and the forward clutch sprag onto the outer race Install the sprag assembly , and onto the sun gear shaft Check that the forward clutch sprag rotation freewheels and locks up in the correct direction.

Install the input sun gear shaft 8 into the case Remove Remove Remove Remove the the the the forward forward forward forward clutch clutch clutch clutch sprag outer race Remove the forward clutch roller inner race thrust ring Remove the inner bearing Install the intermediate piston into the intermediate clutch housing Install the intermediate clutch spring Install the intermediate housing Use J and J to compress the housing. Install the intermediate clutch housing retainer ring Install the intermediate apply plate Install the intermediate clutch plates.

Starting with the intermediate clutch plates with external splines. Alternating with the intermediate clutch plates internal splines. Install the intermediate backing plate retainer ring Measure the distance between the intermediate clutch backing plate and the bottom of the gage bar. Use J 2 and J 1 to install the overdrive piston Page 5 of 8 Install the overdrive piston spring Use J and J to compress the overdrive clutch piston spring Install the overdrive clutch spring retainer Install the overdrive clutch spacer Install the overdrive clutch plates.

Starting with the overdrive clutch plates with external splines. Alternating with the overdrive clutch plates with internal splines. Install the overdrive backing plate Install the overdrive clutch retainer ring Measure the distance between the overdrive clutch backing plate and the bottom of the gage bar. Install the overdrive clutch housing 15 into the case. Measure the distance from the bottom of the gauge bar to the top of the overdrive and intermediate clutch.

Record this as M1. Measure the distance from the bottom of the gage Bar to the bottom of the intermediate and overdrive retainer ring groove in the case. Record this as M2. Subtract M2 from M1. This will be dimension M. Measure the intermediate and overdrive clutch housing retaining ring Be sure the J snap ring pliers are installed properly onto the snap ring or bodily injury may occur.

Important: If housings is replaced a measurement must be taken for end play. Using J install the intermediate and overdrive clutch housing retainer ring 14 into the case. Remove the overdrive 2. Remove the overdrive 3. Remove the overdrive Specifications. Remove the overdirve clutch snap ring from the overdrive clutch housing Refer to Clutch Plate Selection clutch spacer from the overdrive clutch housing Remove the overdrive clutch piston spring snap ring from the overdrive clutch housing Remove J and J from the overdrive clutch housing Remove the overdrive clutch spring from the overdrive clutch housing Remove the overdrive clutch piston from the overdrive clutch housing Remove the intermediate clutch backing plate snap ring from the overdrive clutch housing Remove the intermediate clutch backing plate from the overdrive clutch housing Remove the intermediate clutch plates and from the overdrive clutch housing Remove the intermediate clutch apply plate from the overdrive clutch housing Use J and J to compress the intermediate clutch housing Remove the intermediate clutch housing snap ring from the overdrive clutch housing Remove the intermediate clutch housing , and the intermediate clutch spring from the overdrive clutch housing Remove the intermediate clutch piston from the overdrive clutch housing Apply J to the input and reaction carrier inner shaft thrust washer 11 and install into the intermediate sprag clutch assembly Install the intermediate sprag clutch assembly 12 into the case.

Check that the intermediate sprag clutch rotation freewheels and locks up in the correct direction. Check that the low clutch sprag rotation freewheels and locks up in the correct direction.

Install the low clutch roller thrust bearing Remove the low clutch sprag 16 from the case. Remove the low clutch roller thrust bearing Install the output shaft into the rear internal gear Install the snap ring onto the rear internal ring gear Be sure it is seated in the groove. Rotate the transmission 90 degrees. Install the ouput shaft assembly 21 into the case. Remove the output shaft from the rear internal gear Remove the shift shaft detent lever pin from the case. Remove the manual shift shaft from the case.

Disconnect the park pawl actuator assembly from the manual shaft detent lever Remove the manual shaft detent lever , spacer - some models and the manual shaft shift switch assembly from the case.

Use a suitable tool in order to pry the shift shaft seal from the case. Remove the park pawl actuator assembly from the case. Remove the park pawl shaft , park pawl spring and the park pawl from the case. Remove the park pawl actuator bracket retaining bolts from the case. Remove the park pawl actuator brackets , from the case.

Inspect the cup plug for signs of leaks. Use J to remove the snap ring Remove the overdrive clutch housing 15 from the case. Install the park pawl actuator brackets , onto the case. Install the park pawl , the park pawl spring , and the park pawl shaft into the case. Install the park pawl actuator into the case.

Install the shift switch assembly and spacer - some models onto the detent lever Install the park pawl actuator into the detent lever Install the shift shaft into the case. Install the manual shaft pin into the shift shaft Install a NEW manual shaft seal onto J Use a J to install the NEW manual shaft seal into the case Measure the distance from the bottom of the gage bar to the top of the direct and reverse clutch assembly 6.

Record this as dimension X. Use lubricant to install the NEW torque converter fluid seal 4 onto the torque converter housing. Use lubricant to install the reverse clutch housing thrust washer 5. Install the NEW fluid pump cover gasket Install the torque converter housing 3 onto the case Install the torque converter housing retaining bolts 2 and hand tighten.

Remove the transmission. Refer to Transmission Replacement. Rotate the transmission 90 degrees so that the converter housing is facing up. Remove the torque converter housing bolts 2 from the torque converter housing 3.

Remove the torque converter housing assembly 3 from the case Remove the torque converter housing fluid seal assembly 4. Remove the fluid pump cover gasket Place a suitable drain tray under the transmission. Remove the fluid pan drain plug 63 and seal 64 , and allow the transmission fluid to drain. Put transmission in park. Install either the J to hold the drive flange. Important: Discard retainer 30 , seal 32 , washer 33 and nut Remove the drive flange retaining nut Remove the drive flange washer 33 and seal Remove the drive flange 31 and the output shaft assembly retainer Slowly rotate the transmission to a vertical position, with the bell housing facing up, and allow any excess fluid to drain.

Inspect the fluid pump bushing for wear - not serviceable. Install the TCC control valve spring retainer Install the pressure relief ball and spring Install the pressure valve spring retainer Install the fluid pump cover seal onto the new pump cover screen Install the fluid pump cover screen Install the fluid pump cover screen pin Install the pressure regulator valve , the pressure regulator valve spring , and the line boost valve spring Install the line boost valve bushing seal onto the bushing Install the line boost valve and the bushing Install the line boost valve bushing retainer Install the reverse clutch housing fluid seal rings Measure the distance from the bottom of the gage bar to the fluid pump body.

Refer to Transmission Fluid Pump Specifications. Measure the thickness of pump slide Select the correct size. Measure the thickness of the pump rotor Select the correct size rotor.

Install the fluid pump support , the slide seal and the fluid pump slide rings , and the fluid pump slide O-ring seal onto the pump slide Install the slide pin Note: The fluid pump slide is selective.

Install the fluid pump slide Using a suitable tool install the slide spring Install the fluid pump vane ring Install the fluid pump rotor guide Note: The fluid pump rotor is selective. Install the fluid pump rotor Install the fluid pump vanes Install the fluid pump cover housing onto the converter housing Install J and tighten.

Install the fluid pump housing retaining bolts , Remove the reverse clutch housing seal rings Remove Remove Remove Remove Remove the the the the the line boost valve retainer Remove the fluid pump cover screen pin Remove the fluid pump cover screen Remove the fluid pump cover seal Remove the pressure relief ball pin Remove the pressure relief spring and the pressure relief ball Remove the torque converter clutch TCC control valve pin Remove the fluid pump to torque converter housing bolts , Remove the fluid pump cover Remove Remove Remove Remove Remove the the the the the fluid fluid fluid fluid fluid pump pump pump pump pump vane ring Remove Remove Remove Remove Remove the the the the the fluid fluid fluid fluid fluid pump pump pump pump pump slide spring Install the wiring harness connector 55 through the case.

Hold the connector and install the wiring harness connector retainer Remove the transmission fluid pan. Disconnect the electrical connector 2 from the shift solenoid 1.

Using a suitable tool, remove the shift solenoid retainer from the control valve body. Remove the shift solenoid 7 from the control valve body. Installation Procedure 1. Install new O-ring seals to the shift solenoid 7 , if the O-rings were previously removed.

Install the shift solenoid 7 into the control valve body. Install the shift solenoid retainer into the control valve body. Connect the electrical wiring harness connector 2 to the shift solenoid 1. Install the transmission fluid pan. Important: It is recommended that transmission adaptive pressure TAP information be reset. Resetting the TAP values using a scan tool will erase all learned values in all cells. Transmission performance may be affected as new TAP values are learned. Reset the TAP values.

Refer to Transmission Adaptive Functions.



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