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.
1987 Volkswagen Vanagon Base, AWDFACTORY OEM SERVICE PROCEDURE
Coolant Temperature Sensor
- Coolant temperature sensor is located in thermostat housing. Check coolant temperature. Using ohmmeter, check resistance of temperature sensor. Resistance will vary depending on coolant temperature.
- Replace temperature sensor if resistance is not within specification. See TEMPERATURE SENSOR RESISTANCE SPECIFICATIONS table.
TEMPERATURE SENSOR RESISTANCE SPECIFICATIONS
| Sensor Temperature °F (°C) | Specifications Ohms |
|---|---|
| 50 (10) | 3100-4100 |
| 68 (20) | 2000-3000 |
| 86 (30) | 1500-2000 |
| 104 (40) | 1000-1500 |
| 122 (50) | 750-950 |
| 140 (60) | 540-650 |
| 158 (70) | 380-480 |
| 176 (80) | 290-360 |
| 194 (90) | 205-280 |
| 212 (100) | 160-220 |
Factory Service Tools
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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.