Yes, and no. you do not need to strip it to take it in. you will be paid less for it un stripped. but, yes, the insulation must be removed before the copper can be recycled into a new product. remember, copper is very recyclable, and can be used and reused over and over. the … Read more
It could be a bad connection of the wire to the fuel gauge, from the sender in the tank.
If it is not grounded to the body of the car, the gauge will not move.