NO ! If the turn lights would make such a power loss ath the alternator, what do you think would happen when the headlights or A/C is on ? They need at least 10 times more power ! You may have a bad connection at the binacle or near by. Elvis My car has had minor power fluctuations ever since I got it. For example, the dash lights dim when the turn signal light is on. Is this an old problem due to the stock alternators/voltage regulators? thanks, adam