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 MANUALSSUBARU1991LEGACY L, 4D SEDAN, AWD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALGAUGESINSTRUMENT PANEL - STANDARDCOMPONENT TESTINGTEMPERATURE GAUGE SENDING UNITRESISTANCE TEST
1991 Subaru Legacy L, 4D Sedan, AWD, Standard
Resistance Test
1991 Subaru Legacy L, 4D Sedan, AWD, StandardSECTION Resistance Test
With engine coolant at specified temperatures, resistances of sending unit should be as listed in SENDING UNIT RESISTANCE table. Replace sending unit as necessary.
SENDING UNIT RESISTANCE
| Application Gauge Reading °F (°C) | Coolant Temp. °F (°C) | Ohms | |
|---|---|---|---|
| Justy | |||
| 122 (50) | N/A | 154 | |
| 187 (86) | 167-186 (75-85.5) | 52 | |
| 239 (115) | 211-228 (99.5-109) | 23.6 | |
| 266 (130) | N/A | 12.4 | |
| Legacy | |||
| 122 (50) | 115-129 (46-54) | 187.6 | |
| 248 (120) | 241-255 (116-124) | 19 | |
| Loyale, XT & XT6 | |||
| 158 (70) | 144-169 (62-76) | 72 | |
| 248 (120) | 243-253 (117-123) | 16.1 | |
RENDER: 1.0x
NO RELATED
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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.