two things. first i just gave my camaro a tune up. now the temp gauge doesnt work what could be unplugged? second i just replaced the alt. and batt. now when the car hits a bump or i slow down all the power shuts off then in a plit second comes back on. i hear alot of enine noise through my speakers. and when the power dims anytime i roll down the window, put my foot on the brake, or even hit my blinker the battery needle moves. what could be wrong?

 

1. The temperature sending unit mounts in the driver's side head, between the #1 and #3 cylinders. There's a single green wire that goes to it. That's what's unplugged.

2. Check your battery cables, one of them could be loose. Also check the wiring going to the alternator. It could also be loose. Either of these would cause the voltage drops you're describing.