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 MANUALSBUICK1991LESABRE LIMITED, 4D SEDAN, 4T60/ME9REPAIR AND DIAGNOSISELECTRICALGAUGESINSTRUMENT PANEL - ANALOGTESTINGOIL INDICATOR LIGHT TEST
1991 Buick LeSabre Limited, 4D Sedan, 4T60/ME9
Oil Indicator Light Test
1991 Buick LeSabre Limited, 4D Sedan, 4T60/ME9SECTION Oil Indicator Light Test
- Disconnect oil pressure switch connector. Turn ignition to RUN position. Using a voltmeter, check for battery voltage at terminal "A" of connector. See Figure . If battery voltage is not present, check wire. If wire is okay, replace oil pressure switch.
- If battery voltage is present, jump terminals "A" and "B" using a fused jumper wire. The oil pressure indicator should illuminate. If indicator does not illuminate, check ground wiring. If indicator comes on, check oil pressure with a mechanical gauge. If pressure is okay, replace oil pressure switch.
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.