Electrical problems

[Lycaon444]

So recently my 2001 mustang GT would'nt start, we replaced the battery and it started once then not again. Then we towed it to the mechanics, they replaced the starter. when i got it back it started perfectly fine for a bit. At first, one time i started it and the flashers were unusually fast, but the next time i started it they were back to normal. about three times in the few days it was working fine my radio (a decent aftermarket radio) would reset everything, the clock, the equalizer, etc. and then it wouldnt start again, it made a very loud constant clicking everytime i tried to start it. but finally it started up again after a few minutes of trying. i took it home immediately and put it in my garage. i tried starting it a few more times and it started fine. but i dont want to risk it, so im asking any of you for advice. do any of you fellas know what could be causing these issues given the evidence ive gathered from it?

 

[wmburns]

Would you like an educated guess? Bad radiator core support or battery ground.

The clue is the turn signal flashing fast. This indicates low voltage from the turn signals. But if looking for one thing that all of your symptoms have in common.....grounds.

Here's some information that if understood and used correctly will give you the information to solve this problem yourself.

Howto perform charging system voltage drop test​

Howto perform charging system voltage drop test

To anyone else reading any of my posts I usually include the line: Today's cars simply will not run right without a strong battery and charging system! Cut corners here at your own risk I'm a big believer in starting with the basics. As such I...

www.stangnet.com

 

[Lycaon444]

Thanks man, thats what we were going to look at next, probably going to try to replace most of the wires and grounds.

 

[Lycaon444]

Okay so we cleaned all the grounds and put dialectic grease on them. Its still doing the same stuff. We'll try out the voltage drop test tomorrow.