Headlight Help!!!
#1
#5
#8
does sound like a bad ground, pull the wire looms at the head lite, use electric spray to clean them, make sure no wires are broke. if this dosnt work cheak the relay, take it out and use another one thats in your truck, just make sure its the same, if that dost work it could be your switch.You could say screw it and bypass the O.E.M relays and get a heavy duty relay kit and wire them up right up to your batt. the kit is around $50.00, may be cheaper.
#9
If it's new and your still experiencing the same issues I would check for a sticky/faulty relay.
The lights worked fine before the battery change? Check to make sure the negative/positive battery terminal cables are securely fastened to the battery post.
#10