Help!!! Electrical problems!!!!!
#1
Help!!! Electrical problems!!!!!
Hey guys, I have a 98 blazer 4x4 and have recently had some electrical problems.... My truck started having trouble starting about two weeks ago, I went to autozone and they said I needed a new alternator, got the alternator, replaced it and my car was no different, still needed a jump to get it started. I then replaced my battery and my car ran fine all day, until now. I went to start it, and everything seemed to have power, only it would not start, my power locks also went out and intermittently would switch on their own. I have since pulled the fuse to the locks to avoid that becoming a further problem, all wires leading to my battery, alternator and starter are clean and undamaged.
Any ideas what this could be or how I could diagnose the problem?
Any ideas what this could be or how I could diagnose the problem?
#2
I suspect that you may have a poor ground connection. On my 98 the ground attached to the frame underneath the metal plate that the battery sits on was bad. I replaced the ground cable and my (similar) problems went away. It's easy to diagnose, but probably just as easy to inspect.
Hans
Hans
#4
It's been a while, but I believe to get to the ground attached to the front of the frame you have to remove the batter and tray, and then it's in a plastic housing. I'm not sure you could get to this from underneath unless you removed the shroud.
Just pop out the battery.
Just pop out the battery.
#5
Hans, thanks for the good info. It helps with my projects to have this type of info. I like GM. but why does GM put some of the critical 'grounds' and electrical connections under a battery tray? Then the connections and grounds corrode and there goes the electrical integrity. And why does the battery leak? Because of the side terminal batteries that GM prefers. Tip: don't over tighten the battery terminals.
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