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 MANUALSPLYMOUTH1994GRAND VOYAGER BASE, 31THREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - TESTS W/CODES - BODY CONTROL COMPUTERSELF-DIAGNOSTIC TESTSTEST 46A - REPAIRING OIL PRESSURE SENDING UNIT
1994 Plymouth Grand Voyager Base, 31TH
Test 46A - Repairing Oil Pressure Sending Unit
1994 Plymouth Grand Voyager Base, 31THSECTION Test 46A - Repairing Oil Pressure Sending Unit
NOTE:
For connector terminal identification, see CONNECTOR IDENTIFICATION in this article. For wiring diagrams, see WIRING DIAGRAMS in this article.
- Check engine oil level, and top off as necessary. If oil level is okay, remove oil pressure sending unit, and connect an oil pressure gauge in its place. Go to next step.
- Start engine and check oil pressure reading. If oil pressure is less than 4 psi (.28 kg/cm2 ) at idle, check engine condition. See appropriate article in ENGINES section. If oil pressure is more than 4 psi (.28 kg/cm2 ) at idle, go to next step.
- Allow engine to reach normal operating temperature and check oil pressure reading. If oil pressure is less than 4 psi (.28 kg/cm2 ) at idle, check engine condition. See appropriate article in ENGINES. If oil pressure is more than 4 psi (.28 kg/cm2 ) at idle, go to next step.
- Turn ignition off. Remove oil pressure test gauge. Reinstall oil pressure sending unit. If instrument cluster is not equipped with an oil gauge, go to TEST 46B. If instrument panel is equipped with an oil pressure gauge, go to TEST 47A
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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.