When my headlights are on, I lose 2 brake lights, and my left turn signal blinks rapidly, also the light for my liscense plate doen't work. All things work fine until the headlights are turned on, also my emergency flashers don't flash, just constant on.

Sounds like a possible bad ground connection.
Make sure the contacts for the bulb are clean.
Make sure the cround connection is not corroded.

Check for a blown fuse.

Fast flashing dash signals mean there is a bulb issue-DEFINATELY!

bad wiring

Hi, I have a couple of questions.
1. were the signals working before you replaced the brake light bulbs, and did you use the recommended bulbs?
2. Do the brake lights work now?

The brakes and signals use the same filaments, so these things are tied together.

check the ground on the signal lamp. If the signal blinks rapidly that indicates an overload condition. a bad conection can cause and overload as the circuit tries to overcome the unkown resistance.

Did you check to see if the bulb is burnt out?

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To replace headlight, open hood and there will be 2 -13mm bolts holding headlight, parking light and turn signal light. there is also a spring clip under bolts. bulb comes out from behind once you get the whole assembly out.
plate light is just below where it says chevrolet on the back bumper. There are two 7mm bolts holding it up in there, take out the bulb and take it with you so you get the right one. the headlight is 9007 halogen high/low. goodluck

Hi there, have you tried the radio fuse and lighter fuse as when tail lights and dash lights wont work it is normally one of those.

the blinkers have a bad earth somewhere, check the earth connections on rear lights first