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 MANUALSGMC1988VALUE VAN P3500, 5.7 K, AUTOMATIC, 400/M40REPAIR AND DIAGNOSISENGINE MECHANICALMECHANICAL7.4L V8 - VINS [N,W]TORQUE SPECIFICATIONS
1988 GMC Value Van P3500, 5.7 K, Automatic, 400/M40
Torque Specifications
1988 GMC Value Van P3500, 5.7 K, Automatic, 400/M40SECTION Torque Specifications
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) |
|---|---|
| Bellhousing Bolts | 30-32 (40-43) |
| Camshaft Sprocket Bolts | 17-20 (23-27) |
| Connecting Rod Nuts | 45-48 (61-66) |
| Cylinder Head Bolts | 80 (109) |
| Exhaust Manifold Bolts | 40 (54) |
| Stainless Steel Manifold Bolts | 26 (35) |
| Flywheel Bolts | 65-75 (90-102) |
| Intake Manifold Bolts | 30 (41) |
| Main Bearing Cap Bolts | 110 (149) |
| Oil Pump Bolts | 65 (90) |
| Rocker Arm Studs | 40 (54) |
| Vibration Damper Bolt | 85 (115) |
| Water Outlet Bolts | 21-30 (28-41) |
| Water Pump Bolts | 30 (41) |
| INCH Lbs. (N.m) | |
| Front Cover Bolts | 96-100 (10-11) |
| Oil Pan-to-Block Bolts | 160 (18) |
| Oil Pan-to-Front Cover Bolts | 70 (8) |
| Oil Pump Cover Bolts | 80 (9) |
| Rear Oil Seal Retainer Nuts | 135 (15) |
| Valve Cover Nuts | 115 (13) |
RENDER: 1.0x
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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.