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 MANUALSCHEVROLET1998EXPRESS 1 TON VAN V8-5.7L VIN RREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSCOOLING 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
Coolant Hose Retaining Bolt 10 Nm (89 inch lbs.)
Coolant Pump Pulley Bolts (4.3L, 5.OL and 5.7L) 25 Nm (18 ft. lbs. )
Coolant Pump Retaining Bolts 42 Nm (31 ft. lbs.)
Coolant Pump Retaining Bolt-to-Plate (6.5L Diesel) 23 Nm (17 ft. lbs.)
Coolant Pump Retaining Bolt, behind the Pump Backing Plate (6.5L Diesel) 28 Nm (21 ft. lbs.)
Coolant Recovery Reservoir Bolt 11 Nm (97 inch lbs.)
Engine Coolant Heater Cord Bracket Bolt 12 Nm (106 inch lbs.)
Engine Coolant Heater Cord Clip Bolt 12 Nm (106 inch lbs.)
Engine Coolant Heater to the Engine Block Bolt 2 Nm (18 inch lbs.)
Fan and Clutch Retaining Nut to Water Pump Pulley (4.3L, 5.OL, 5.7L and 6.5L Diesel) 57 Nm (42 ft. lbs.)
Fan and Clutch Retaining Nuts to Water Pump Pulley (7.4L) 24 Nm (18 ft. lbs.)
Fan to Clutch Retaining Bolts (4.3L, 5.OL, 5.7L and 7.4L) 33 Nm (24 ft. lbs.)
Fan to Clutch Retaining Bolts (6.5L Diesel) 17 Nm (13 ft. lbs.)
Lower Radiator Baffle Bolt 11 Nm (97 1b in)
Oil Cooler Line Retaining Clip to Bracket Bolt (6.5L Diesel) 12 Nm (106 inch lbs.)
Oil Cooler Line Clip to Bracket Nut (4.3L, 5.OL, 5.7L and 7.4L) 12 Nm (106 inch lbs.)
Oil Cooler Line Fittings to the Oil Filter Base 17 Nm (13 inch lbs.)
Oil Cooler Line Fittings to the Oil Filter Base (4.3L Auxiliary Oil Cooler) 35 Nm (26 ft. lbs.)
Oil Cooler Line Fittings to the Radiator 24 Nm (18 ft. lbs.)
Radiator Surge Tank Bolt 6 Nm (53 inch lbs.)
Thermostat Housing Retaining Bolts (4.3L, 5.OL and 5.7L) 25 Nm (18 ft. lbs.)
Thermostat Housing Retaining Bolts (7.4) 40 Nm (30 ft. lbs.)
Thermostat Housing Retaining Bolts (6.5L Diesel) 42 Nm (31 ft. lbs.)
Upper and Lower Fan Shroud Bolts 8 Nm (71 inch lbs.)
Coolant Pump Pulley Bolts (4.3L, 5.OL and 5.7L) 25 Nm (18 ft. lbs. )
Coolant Pump Retaining Bolts 42 Nm (31 ft. lbs.)
Coolant Pump Retaining Bolt-to-Plate (6.5L Diesel) 23 Nm (17 ft. lbs.)
Coolant Pump Retaining Bolt, behind the Pump Backing Plate (6.5L Diesel) 28 Nm (21 ft. lbs.)
Coolant Recovery Reservoir Bolt 11 Nm (97 inch lbs.)
Engine Coolant Heater Cord Bracket Bolt 12 Nm (106 inch lbs.)
Engine Coolant Heater Cord Clip Bolt 12 Nm (106 inch lbs.)
Engine Coolant Heater to the Engine Block Bolt 2 Nm (18 inch lbs.)
Fan and Clutch Retaining Nut to Water Pump Pulley (4.3L, 5.OL, 5.7L and 6.5L Diesel) 57 Nm (42 ft. lbs.)
Fan and Clutch Retaining Nuts to Water Pump Pulley (7.4L) 24 Nm (18 ft. lbs.)
Fan to Clutch Retaining Bolts (4.3L, 5.OL, 5.7L and 7.4L) 33 Nm (24 ft. lbs.)
Fan to Clutch Retaining Bolts (6.5L Diesel) 17 Nm (13 ft. lbs.)
Lower Radiator Baffle Bolt 11 Nm (97 1b in)
Oil Cooler Line Retaining Clip to Bracket Bolt (6.5L Diesel) 12 Nm (106 inch lbs.)
Oil Cooler Line Clip to Bracket Nut (4.3L, 5.OL, 5.7L and 7.4L) 12 Nm (106 inch lbs.)
Oil Cooler Line Fittings to the Oil Filter Base 17 Nm (13 inch lbs.)
Oil Cooler Line Fittings to the Oil Filter Base (4.3L Auxiliary Oil Cooler) 35 Nm (26 ft. lbs.)
Oil Cooler Line Fittings to the Radiator 24 Nm (18 ft. lbs.)
Radiator Surge Tank Bolt 6 Nm (53 inch lbs.)
Thermostat Housing Retaining Bolts (4.3L, 5.OL and 5.7L) 25 Nm (18 ft. lbs.)
Thermostat Housing Retaining Bolts (7.4) 40 Nm (30 ft. lbs.)
Thermostat Housing Retaining Bolts (6.5L Diesel) 42 Nm (31 ft. lbs.)
Upper and Lower Fan Shroud Bolts 8 Nm (71 inch lbs.)
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.