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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCADILLAC1999SEVILLE SLS V8-4.6L VIN YREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINESYSTEM SPECIFICATIONSCYLINDER HEAD SPECIFICATIONS
1999 Cadillac Seville SLS V8-4.6L VIN Y
Cylinder Head Specifications
1999 Cadillac Seville SLS V8-4.6L VIN YSECTION Cylinder Head Specifications
CYLINDER HEAD BOLT TORQUE SPECIFICATIONS
M11 - Cylinder Head Bolts
First Pass 40 Nm (30 lb ft)
Second Pass + 70 degrees
Third Pass + 60 degrees
Final Pass + 60 degrees (190 degrees Total)
M6 - Cylinder Head Bolts 12 Nm (106 lb in)
IMPORTANT: Tighten all bolts in the proper sequence, refer to Engine / Overhaul / Cylinder Head Installation for sequence and additional information.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.