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 MANUALSCHEVROLET1998EXPRESS 1 TON VAN V8-5.7L VIN RREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSEXHAUST SYSTEMSYSTEM SPECIFICATIONS
1998 Chevrolet Express 1 Ton Van V8-5.7L VIN R
System Specifications
1998 Chevrolet Express 1 Ton Van V8-5.7L VIN RSECTION System Specifications
Heat Shield Bolts 12 Nm (106 inch lbs.)
Exhaust Manifold Studs (All Except Diesel) 17 Nm (13 ft. lbs.)
Exhaust Manifold Studs (Diesel) 29 Nm (21 ft. lbs.)
Exhaust Pipe Clamps (All Except Tailpipe) 70 Nm (52 ft. lbs.)
Exhaust Pipe Clamps (Tailpipe) 47 Nm (35 ft. lbs.)
Exhaust Hanger Nuts 27 Nm (20 ft. lbs.)
Flat Flange Connection Nut 48 Nm (35 ft. lbs.)
Exhaust Pipe Flange-To-Manifold Nuts (Except Diesel) 65 Nm (48 ft. lbs.)
Exhaust Pipe Flange-To-Manifold Nuts (Diesel) 20 Nm (15 ft. lbs.)
Exhaust Hanger Bolts 17 Nm (13 ft. lbs.)
Exhaust Manifold Studs (All Except Diesel) 17 Nm (13 ft. lbs.)
Exhaust Manifold Studs (Diesel) 29 Nm (21 ft. lbs.)
Exhaust Pipe Clamps (All Except Tailpipe) 70 Nm (52 ft. lbs.)
Exhaust Pipe Clamps (Tailpipe) 47 Nm (35 ft. lbs.)
Exhaust Hanger Nuts 27 Nm (20 ft. lbs.)
Flat Flange Connection Nut 48 Nm (35 ft. lbs.)
Exhaust Pipe Flange-To-Manifold Nuts (Except Diesel) 65 Nm (48 ft. lbs.)
Exhaust Pipe Flange-To-Manifold Nuts (Diesel) 20 Nm (15 ft. lbs.)
Exhaust Hanger Bolts 17 Nm (13 ft. lbs.)
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.