Automatic Transmission Servicing: Other Chevrolet Tracker II

Transfer Case

Check transfer case fluid level at each engine oil change. Under normal driving conditions, change transfer case fluid every 30,000 miles.

Note. If vehicle has been driven for extended period of time at high speed, in city traffic or pulling a trailer, an accurate fluid level cannot be immediately determined. Allow transmission to cool for about 30 minutes after vehicle is parked, then check fluid level. Transmission temperature must be at least 180°F (82°C) when checking fluid level. If cold, fluid level will rise from ADD 1 pt. or .5L to FULL mark on dipstick as transmission reaches normal operating temperature. Do not overfill. Transmission fluid may turn dark with normal use and does not always indicate contamination or oxidation.

1. With vehicle parked on a level surface and engine at idle, move range selector lever through all ranges, ending in Park. Remove dipstick, wipe clean and check fluid level. Fluid level should be between ADD 1 pt. and FULL marks on dipstick. Inspect the fluid color. Is the fluid color red? If so, go to step 4 . If not, go to next step.
2. Inspect the fluid color. Is the fluid color a non-transparent pink? If so, go to step 13 . If not, go to next step.
3. Inspect the fluid color. Is the fluid color Light Brown? If so go to step 18 .
4. Inspect the fluid. Is the fluid foamy? If so, go to step 12 . If not, go to next step.
5. Inspect the fluid level. Is the fluid level high? If so, go to step 8 . If not, go to next step.
6. Inspect the fluid level. Is the fluid level low? If so, go to step 9 . If not, go to next step.
7. Confirm that the fluid level is okay. Is the fluid inspection complete? If so, go to step 20 .
8. Remove excess fluid. Did you remove the excess fluid? If so, go to step 20 .
9. Add fluid in order to obtain the proper level. Did you add fluid to the proper level? If so, go to step 20 .
10. Inspect for external leaks. Are there any external leaks? If so, go to next step.
11. Repair the leak. Did you repair the leak? If so, go to step 20 .
12. Inspect for a high fluid level. Is the fluid level high? If so, go to step 8 . If not, go to next step.
13. Inspect for contaminants in the fluid. Are there contaminants in the fluid? If so, go to next step.
14. Drain the fluid in order to determine the source of contamination. Did you drain the fluid? If so, go to next step.
15. Perform transmission overhaul. See appropriate OVERHAUL article in AUTOMATIC TRANSMISSIONS. After repairs, go to next step.
16. Add new fluid. Did you add new fluid? If so, go to next step.
17. Inspect the fluid level. Did you Inspect the fluid level? If so, go to step 20 .
18. Drain the fluid in order to determine if there is contamination. Are there large pieces of metal or other material in the bottom of the pan? If so, go to step 15 . If not, go to next step.
19. Change the fluid and filter. Did you change the fluid and filter? If so, go to next step.
20. Perform the road test. Did you perform the test? If so, system is okay.

Remove fill plug. Check oil level. If oil level is even with bottom of fill plug opening, level is okay. If level is lower than bottom of fill plug opening, add lubricant as necessary.

Manufacturer recommends Dexron-III ATF.

Manufacturer recommends GM Goodwrench Synthetic Manual Transmission Fluid (GM P/N 12346190) or an equivalent SAE 75W-90 GL-4 gear oil.

The following refill capacities given are approximate. Correct fluid level should always be determined by marks on dipstick, rather than amount of fluid added. Do not overfill. See TRANSMISSION FLUID CAPACITIES table.

TRANSMISSION FLUID CAPACITIES

The following refill capacity given is approximate. Correct fluid level should always be determined by fluid level at transfer case fill hole, rather than amount of fluid added. Do not overfill. See TRANSFER CASE FLUID CAPACITIES table.

TRANSFER CASE FLUID CAPACITIES

Preparation

1. After the repair or replacement transmission is installed in the vehicle, do not reconnect the oil cooler pipes.
2. Remove the fill cap (9) on the Transmission Oil Cooler and Line Flusher (J-35944-A) and fill the flusher tank (4) with 20 oz. (0.6L) of flushing solution using the measuring cup (6). DO NOT overfill. Install the fill cap (9) on the transmission oil cooler and line flusher and pressurize the flusher tank (4) to 80-100 psi, using the shop air supply at the tank air valve (9). (Scheme 32)
3. Connect the transmission oil cooler and line flusher discharge hose (5) to the oil cooler return pipe (top connector). Clip the discharge hose (5) onto the oil drain container. Attach the transmission oil cooler and line flusher to the undercarriage of the vehicle with the hook provided, and connect the flushing system feed supply hose (3) from the transmission oil cooler and line flusher to the oil cooler feed pipe (bottom connector).
4. With the water supply valve (1) on the transmission oil cooler and line flusher in the OFF position, connect the water supply hose (7) from the transmission oil cooler and line flusher to the water supply at the faucet. (Scheme 32)and (Scheme 33). Turn ON the water supply at the faucet.

Scheme 32

Scheme 33

Flow Check

1. Disconnect both hoses from the oil cooler pipes. Connect the oil cooler feed pipe (vertical/top connector) to the transmission and the return pipe (horizontal/bottom connector) to the discharge hose (5). Clip the discharge hose (5) onto the empty oil drain container. see scheme 6
2. Confirm the transmission is filled with ATF. See «CHECKING FLUID LEVEL & CONDITION»(ref-138344-S14269755672002040800000). Start the engine with the transmission in Park range and run for 30 seconds. A minimum of 2 qts. (1.9L) must be discharged during this 30-second run time. If fluid flow is greater than 2 qts. (1.9L) in 30 seconds, go to next step. If fluid flow is less than 2 qts. (1.9L) in 30 seconds, perform the following diagnosis: Disconnect the oil cooler feed line at the radiator. Connect the discharge hose (5) to the cooler feed line. Clip the discharge hose (5) to the empty oil drain container. see scheme 6 Start the engine with the transmission in Park range and run for 30 seconds. A minimum of 2 qts. (1.9L) must be discharged during this 30-second run time. Perform the following according to the flow rate: Insufficient feed flow: inspect the transmission. Sufficient feed flow: inspect the oil cooler return pipe and the oil cooler (and auxiliary cooler, if equipped).
3. Remove the discharge hose (5), reconnect the cooler feed and return pipes to the transmission and refill with appropriate fluid to proper level. See «RECOMMENDED FLUIDS»(ref-138344-S18771389982002040800000) and «CHECKING FLUID LEVEL & CONDITION»(ref-138344-S14269755672002040800000). Inspect the transmission oil cooler pipe connections at the radiator, the auxiliary cooler (if equipped) and the transmission for leaks.

Clean-up

Disconnect the water supply hose (7) from the transmission oil cooler and line flusher and bleed any remaining air pressure from the flusher tank (4). (Scheme 32) Remove the fill cap (9) from the transmission oil cooler and line flusher and return any unused flushing solution to its container. Rinse the transmission oil cooler and line flusher with water. Do not store the transmission oil cooler and line flusher with flushing solution in it. After every 3rd use, clean the transmission oil cooler and line flusher as described in the instructions included with the tool. Dispose of any waste water/solution and transmission fluid in accordance with local regulations.

ON-VEHICLE REPAIRS

Various components may be serviced without transmission removal, depending on application. For servicing of these components, see appropriate component under ADJUSTMENTS and/or REMOVAL & INSTALLATION . For additional information on testing electrical components, see appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.

SHIFT CABLE

1. Ensure shift cable is not restricted. Apply parking brake. Place gearshift lever in the NEUTRAL position. Loosen shift cable adjusting nut and lock nut (1) at transmission. (Scheme 34)
2. Ensure transmission is in the Neutral position. Pull shift cable tight. Tighten adjusting nut, then lock nut. (Scheme 35) Ensure indicated gear positions match transmission response.

Scheme 34

Scheme 35

1.6L & 2.0L

Inspect the accelerator cable for proper adjustment. Measure the distance between the tip end of the Throttle Valve (T.V.) cable adjustment mark and the end of the boot. (Scheme 36) The distance must be 0.031-0.059" (0.8-1.5 mm). Loosen the T.V. cable lock nut (3). Adjust the cable using the lock nuts until the measurement is achieved. Tighten the T.V. cable lock nut (3). Measure the distance between the tip end of the T.V. cable adjustment mark and the end of the boot. Ensure that the distance did not change during the tightening of the lock nut.

2.5L

Inspect the accelerator cable for proper adjustment. Inspect the Throttle Valve (T.V.) cable lock nut (3) and the adjusting nut. Place the ignition switch in the LOCK position. Ensure the throttle valve is closed. Measure the distance (2) between the tip end and the end of the boot. The distance must be 0.03-0.06" (0.8-1.5 mm). (Scheme 37) Loosen the T.V. cable lock nut (3), then adjust the cable until the clearance is obtained. Tighten the T.V. cable lock nut. Measure the distance (2) between the tip end of the T.V. cable and the end of the boot. Ensure that the distance did not change during the tightening of the lock nut.

Scheme 36

Scheme 37

TRANSMISSION RANGE SWITCH

The TR switch is not adjustable. If TR switch is malfunctioning, replace. See TRANSMISSION RANGE SWITCH under REMOVAL & INSTALLATION.

FILLER TUBE

Note. Tools required: Transmission Assembly Lubricant (J-36850).