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 MANUALSMERCURY1987LYNX L, MTXIIIREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALGAUGESINSTRUMENT PANEL - STANDARDTESTINGINDICATOR WARNING LIGHTSLOW FUEL INDICATOR
1987 Mercury Lynx L, MTXIII
Low Fuel Indicator
1987 Mercury Lynx L, MTXIIISECTION Low Fuel Indicator
- When ignition is turned on, tank indicator should come on if fuel level is below 1/4 of a tank. Otherwise it should go off. If operation is faulty, perform the following test at low fuel wiring connector, with ignition on.
- Connect a test light to terminal No. 2 and ground, then terminal No. 3 and ground. Terminal No. 1 is blank. Light will blink on in both cases but should be brighter at terminal No. 3.
- Connect test light between 12-volt source and terminal No. 4. Test light should be on. Connect test light between terminal No. 5 and ground. Light will be on. Connect jumper between 12-volt source and terminal No. 6. Fuel indicator should light.
- If any test fails, check for bad wiring, blown fuse or defective bulb. If all terminals test properly, check gauge and IVR. If both are good, replace low fuel indicator switch/sensor.
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.