Ford Ranger electrical pulse

FORD RANGER

GREG LAWRENCE

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I have a 2002 Ford Ranger XLT, 3.0 ltr V-6, 51,500 miles. The truck runs great. When the lights are on at night I notice a pulse almost like a fast heartbeat in all of the lighting. Headlights, tail lights, dash & interior dome. The truck seems to be idling fine & this problem occurs no matter the enging RPM. The pulse speed doesn't change. Any advice?

Mar 11, 2007 at 8:24 AM

CHEVY22

CAR REPAIR CONTRIBUTOR
1,375 POSTS

Hi Greg
It sounds like you may be missing a ground , check your battery cables for corrosion and clean them first and follow all grounds from the battery to make sure they have good clean connections , if the whole lighting system is doing it its gotta be something in that neighborhood
Jim

Mar 11, 2007 at 9:00 AM

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