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.
1983 Chevrolet Sportvan G10, 5.7 LFACTORY OEM SERVICE PROCEDURE
Sending Units/Sensor Switches
SENDING UNITS/SENSOR SWITCHES LOCATION
| Component | Location |
|---|---|
| A/C Pressure Cycling Switch | On accumulator drier. See Figure. |
| Detonation Sensor | On lower left side of engine block behind starter. |
| Fuel Gauge Sender | Top of fuel tank. |
| Oil Pressure Sensor (4.1L) | In engine above starter. |
| Oil Pressure Sensor (5.0 & 5.7L) | Left front of distributor. |
| Oil Pressure Sensor (6.2L) | Upper front of engine. |
| Oxygen Sensor (6-Cyl.) | In front exhaust pipe. See Figure, Figure & 9. |
| Oxygen Sensor (V8) | In exhaust manifold. See Figure, Figure & 9. |
| Vacuum Sensor | On firewall. See Figure. |
| Vehicle Speed Sensor | Under left side of dash. |
| Water Temperature Switch (6-Cyl.) | On water outlet. See Figure. |
| Water Temperature Switch (V8) | On left rear corner of engine. See Figure. |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.