I have been experiencing a few issues with my gauge cluster. When I turn on my left blinker the signal bulb (in cluster) pulsates but the opposite side works fine and doesn't have this issue. Also my fuel gauge always reads full and temperature gauge always reads hot? I replaced the theromstat and coolant sensor. I also cleaned the thermostat housing and replaced the positive battery cable. I did recently replaced all the bulbs with LEDs and may have installed a few backwards? Could this cause any problems?