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nsstring · 04-10-2016, 07:32 AM

Start by pulling all the turn signal bulbs and see if one of them is a single contact bulb. If so it connects across the park/tail light and will make them all blink.

04-10-2016, 07:32 AM	#2
nsstring Registered User Join Date: Feb 2016 Location: West Palm Beach, FL Posts: 4	Re: 1978 k20 wiring nightmare Start by pulling all the turn signal bulbs and see if one of them is a single contact bulb. If so it connects across the park/tail light and will make them all blink.