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 REASSEMBLY
1993 Saab 9000 CD, 2.3 B, Standard
Transaxle Reassembly
1993 Saab 9000 CD, 2.3 B, StandardSECTION Transaxle Reassembly
- On turbo model, install turbo pressure feed tube into transmission housing with a plastic hammer (if removed). Install plugs into housing. Tighten plugs to 11 ft. lbs. (15 N.m). Screw 2 plastic plugs into housing oil cooler line connection hole. Install dowel into transmission housing using a plastic hammer.
- With a heat gun, heat transmission housing to 158°F (70°C) and install countershaft tapered roller bearing outer ring. Install shaft seal into transmission housing. Assemble pawl and spring and press pin into housing, securing pin with Torx bolt. Tighten bolt to 89 INCH lbs. (10 N.m). Assemble locking cam and install into housing, tightening Torx bolt to 23 ft. lbs. (32 N.m).
- Insert Detent Adjustment Tool (5P89002021) and install detent spring. See Figure. Tighten detent spring bolt to 89 INCH lbs. (10 N.m). Install assembled selector mechanism into housing. Use following formula to determine thickness of washer used on selector assembly.
- S = X - .40" (.10 mm).
- S = Thickness of washer.
- X = Value to be measured.
- .40" (.10 mm) = Standard clearance.
Insert correct size washer to meet standard clearance by removing stop plate and withdrawing selector shaft enough to install washer.
- Assemble and install throttle cam and throttle cable into transmission housing and pretension throttle cam by rotating one revolution and inserting nipple of cable in cam. Install brake "C" band anchor pin into housing and hold in place with adjusting bolt. Assemble piston "C" according to version being used. See Fig 1.
RENDER: 1.0x
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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.