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 MANUALSGMC1992FORWARD CONTROL 5.7 K, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCEREMOVE, OVERHAUL & INSTALLENGINE CONTROLS - REMOVE/INSTALL/OVERHAULFUEL SYSTEM (GASOLINE)THROTTLE BODY (PFI)REMOVAL (3.8L)
1992 GMC Forward Control 5.7 K, Automatic
Removal (3.8L)
1992 GMC Forward Control 5.7 K, AutomaticSECTION Removal (3.8L)
- Relieve fuel pressure. See FUEL SYSTEM PRESSURE RELIEF (TBI) under FUEL SYSTEM (GASOLINE). Disconnect negative battery terminal. Drain coolant from radiator. Remove air induction tube, throttle and cruise control cables.
- Disconnect electrical harness connector from IAC, TPS and MAF sensor. Remove throttle body mounting bolts. Remove throttle body assembly.
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.