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 MANUALSGMC1992MAGNAVAN 5.7 KREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSELECTRICAL COMPONENT LOCATIONSELECTRICAL COMPONENT LOCATORSWITCHES
1992 GMC Magnavan 5.7 K
Electrical Component Locator: Switches
1992 GMC Magnavan 5.7 KSECTION Switches
SWITCHES LOCATION
| Component | Location | |
|---|---|---|
| A/C Clutch Cycling Press. Switch | On rear of accumulator. | |
| A/C High Pressure Cut-Out Switch | On rear of compressor. | |
| Aux. Cooling Fan Press. Switch | On right side of engine block, above starter. | |
| Backup Light Switch (A/T) | At base of steering column. | |
| Brake Pressure Warning Switch | On proportioning valve, at left frame rail. | |
| Cold Advance Fast Idle Temp. Switch | On rear of right cylinder head. | |
| Cold Advance Glow Plug Inhibit Relay | On right side of firewall. | |
| Coolant Temperature Switch | In left cylinder head. | |
| Engine Temperature Switch | On rear of right cylinder head. | |
| Flow Switch | Near power steering pump. | |
| Fuel Pump/Oil Press. Switch | Near distributor. | |
| Low Coolant Warning Switch | On right side of radiator. | |
| Neutral Safety Switch | On lower steering column. | |
| Oil Pressure Switch | ||
| "G" Series 4.3L (VIN Z) | On top rear of engine. See Figure. | |
| "P" Series 4.3L (VIN Z) | On top rear of engine. See Figure. | |
| 5.0L (VIN H) & 5.7L (VIN K) | On top rear of engine. See Figure. | |
| "P" Series 5.7L (VIN K) | On top rear of engine. See Figure. | |
| "G" Series 7.4L (VIN N) | On top rear of engine. See Figure. | |
| "P" Series 7.4L (VIN N) | On top rear of engine. See Figure. | |
| Stoplight Switch | On brake pedal bracket. | |
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.