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.
1991 Ford Probe LX, AutomaticFACTORY OEM SERVICE PROCEDURE
Belt Adjustment Specifications
DRIVE BELT ADJUSTMENT (1)
| Application | New Belt | Used Belt | ||||||
|---|---|---|---|---|---|---|---|---|
| 3.0L SHO | ||||||||
| 4-Rib | 154-198 (70-90) | 112-157 (49-69) | ||||||
| 6-Rib | 220-265 (98-120) | 148-192 (65-87) | ||||||
| 3.0L Except SHO | ||||||||
| 5-Rib | 140-160 (62-71) | 110-130 (48-57) | ||||||
| 6-Rib | (2) | (2) | ||||||
| "V" Belts | ||||||||
| Air Pump | 50-90 (24-40) | 40-60 (20-27) | ||||||
| Except Air Pump | 125-160 (55-71) | 110-130 (48-57) | ||||||
| Alternator | 140-180 (62-80) | 120-140 (53-62) | ||||||
| 3.8L (Non-Supercharged) | ||||||||
| "V" Belts | 74 (34) | 60 (28) | ||||||
| 4-Rib (Air Pump) | 90-130 (40-57) | 90-120 (40-53) | ||||||
| 4-Rib (Ex.Air Pump) | 110-150 (48-67) | 110-130 (48-57) | ||||||
| 5-Rib | 130-170 (57-75) | 120-150 (53-67) | ||||||
| 6-Rib | 220-265 (97-117) | 148-192 (66-87) | ||||||
| 3.8L (Supercharged) | ||||||||
| Jackshaft | 56 (26) | 50 (24) | ||||||
| Supercharger | 69 (31) | 65 (29) | ||||||
| "V" Belts | 135 (59) | 130 (57) | ||||||
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Factory Service Tools
Use the Manual With the Right Hardware
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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.