bad ground

Hey everyone! I’ve skimmed through lots of the threads to not see a problem like mine, can someone help? I’ve got a 2003 TJ X trim, 4.0 I6 with the 42RLE trans, so my turn signals work as they should when headlights are off. However when I’m on park light or headlight the driver side signals...

Not even 500 miles ago I replaced my cap and rotor because it was squealing like a pig. I’m gonna have to do it again because it’s squealing like a pig again. I must admit my negative battery connector has been giving me issues because it doesn’t get tight enough and I was wondering if this bad...