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Q: what would make the headlights and dashlights flicker on 1998 Pontiac Grand Am

most of the time they will flicker
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Start looking for loose or corroded/oxidized connections. Possibly a bad light switch. Wiggle the wiring harness and hit the dash see if it makes the lights flicker, try wiggling the harness near connectors until you can isolate where the problem is. If you need a wiring diagram, there is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate
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