1989 Ford Topaz engine light keeps coming on

1989 MERCURY TOPAZ
130,000 MILES • 4 CYL • FWD • AUTOMATIC
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1989 Ford Topaz mileage: 130,000. My mechanic doesn't seem to know what the problem is with my car so I have come to ask you. The engine light keeps coming on. It doesn't stay on long enough to register on the computer. Maybe ten seconds at most. Sometimes it just barely flashes. It will go off if I accelerate, brake, or just wait. The engine does seem bogged down sometimes when the light is on, but not all the time. Another thing, (I don't know if this is related or not) sometimes the signal lights don't work. I can go for months where it is fine then a day or a week where they don't work. The heater also doesn't work if the signal lights are not working. I know those two things are related, but the engine light might have nothing to do with them. Please help!
Nov 17, 2010 at 11:44 PM
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The “check engine” light will “light” when there is a malfunction in the engine management system. The fault code is then stored in the computer. The computer must be scanned to retrieve these stored faults to pinpoint the malfunctioning component. Also, take a 12-volt test light and check out the power to the heater and turn signals when they are not working.
Nov 17, 2010 at 11:46 PM