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Old 01-24-2024, 11:12 AM   #7
Mouse330
 
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Drives: 2011 2SS, 2006 GMC Sierra
Join Date: Jul 2019
Location: MA
Posts: 252
Even though I've seen grounds cause issue like this....bulbs working but blinking fast, The Left and Right do not share the same grounds. There are 4 separate grounds. One ground per corner, I've come across plenty of times the resistance through the bulb themselves can cause these issues. I would suggest buying bulbs all the same manufacture and trying that. European cars are famous for this. GL
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