Quote:
Originally Posted by sgvT4R
Hey guys,
So earlier this year I was experiencing some issues where all the electrical power on my truck would cut out for like a fraction of a second. When it first happened, I ignored it as the truck still drove, then within a span of 15 mins it would happen again my engine would die. The car starts right up again after.
So I carefully drove home, inspected my battery cables, ground connections and checked my fuses but couldn't find anything.
My first thought, battery & alternator going bad. So I changed the battery, tested the alternator and purchased new heavy duty battery terminals from SHD.
After that, truck ran fine. Issue went away. Then 2 months later.. happens again. So this time I change the alternator to a brand new OEM one.
About 2 months later, shit happens again. I do some deep thinking, and I realized that each time I thought I fixed the problem was because I unplugged the battery. So that's what I did. I unplugged the battery and let the ECU reset. Sure enough the truck ran fine again.
So for the past year, every time my power blips, I stop, get out and unplug the negative terminal, wait 10 secs, plug it back in and I'm good for another 2 months or so.
Anyone else run into this issue? Is it the ECU? Should I replace the ECU? Or get it reprogrammed? Is this something the dealer can only do?
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Before you go swapping out the ECU, think about checking for error codes first. A diagnostic scan can clue you in on what's causing those power blips. Also, take a look at the ignition switch—it might be the culprit. A wonky ignition switch can mess with the electrical flow and cause those blips. Keep an eye out for any patterns when it happens, like turning the key or jiggling the ignition switch. If there's a link, it could be worth checking or swapping out the ignition switch.
