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 MANUALSCADILLAC1991SEVILLE V8-300 4.9LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSSPECIFICATIONS
1991 Cadillac Seville V8-300 4.9L
Computers and Control Systems: Specifications
1991 Cadillac Seville V8-300 4.9LSECTION Specifications
TORQUE VALUES
Air Cleaner Bracket Nut 17 N-m (12 lb.ft)
Air Cleaner Assembly Lower Mounting Bolts 6 N-m (53 lb.in)
Fuel Line Fitting Nuts 30 N-m (22 lb.ft)
Fuel Pressure Regulator Attaching Screws 13 N-m (9 lb.ft)
Fuel Rail Attaching Bolts 24 N-m (18 lb.ft)
Fuel Tank Retaining Strap 34 N-m (26 lb.ft)
ISC Attaching Nuts 3.7 N-m (33 lb.in)
MAT Sensor 20 N-m (15 lb.ft)
Throttle Body Attaching Bolts 19 N-m (14 lb.ft)
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.