Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSAAB19939000 CD, 2.3 B, STANDARDREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSOVERHAUL - ZF 4HP 18TRANSAXLE DISASSEMBLY
1993 Saab 9000 CD, 2.3 B, Standard
Transaxle Disassembly
1993 Saab 9000 CD, 2.3 B, StandardSECTION Transaxle Disassembly
- Mount transmission on work bench and secure with oil pan facing upward. Remove torque converter, oil filter cover and oil dipstick. Remove oil pan and valve body assembly. Remove 18 bolts and torque converter housing on input shaft. Lift out differential assembly.
- Remove tappet and compression spring from input shaft. Remove intermediate plate with oil pump and clutch "C". Remove angle washer and shims from turbine shaft. Turn turbine shaft back and forth while removing clutch "A", clutch "B" and 2nd gear one-way clutch assembly.
- Remove brake band and engine shaft with clutch "E". Remove intermediate shaft with 2 axial washers and axial needle bearing. Remove sun gear shaft with axial bearings, washer and angle washer. Remove pot with axial bearing, axial washer, angle washer and sun gear. Lift out planetary spider assembly with axial bearing, washer and angle washer.
- Turn transmission over, remove spur gear cover and engage parking pawl. Loosen spur gear bolts, but DO NOT remove. Turn transmission over with oil pan side facing upward. Release parking pawl and remove spur gear bolts. Remove spur gear and output shaft.
- Remove spider pot. Remove hexagon bolt, spur gear and adjusting washer. Remove countershaft. Remove inner race from spur gear (output shaft).
- Remove tapered roller bearing inner shaft of spur gear (countershaft). Tapered roller bearing inner ring on countershaft can be pressed off. Turn transmission housing on end and remove bearing outer race with 2 jaw bearing puller. Remove sleeve and governor assembly.
- Turn transmission with pan facing upward and remove slotted nut. Remove bearing ring with 1st gear assembly and retainer washer. Depress brake "C" servo cover. Remove retaining ring and piston "C" assembly. Remove adjusting bolt and pin.
- Lift out brake "D" clutch discs and plate spring. Use compressed air to remove piston "D". Release snap ring and remove discs from clutch "B". Remove clutch "A" and "E" assembly, output shaft and 1st gear one-way clutch. Remove governor and differential assembly. Remove input shaft speedometer from converter housing. Remove selector mechanism and parking interlock from transmission housing. For further information on individual components, see COMPONENT DISASSEMBLY & REASSEMBLY below.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.