my truck is having some weird electrical probelms, and this is my worst area so if anyone has any input i would really appreciate it.
about a month ago my batteries kept draining, i couldnt leave my truck turned off for more than 8 or so hours or it wouldnt crank, even if the block heater was plugged in. Had the less than one year old batteries checked and they were bad so i replaced them with optima red tops. Truck worked great for about 2 weeks. Once it started dying again, i figured i had an electrical draw and the only things that ive changed from last year (when my remote start would work in 0 degree weather after being parked over night not plugged in) are my stereo and aux lights. So at my lunch break i would run my truck for 5-10 min to let the batteries charge because at work we dont have plug ins, and before i turned the truck off in the mornings i would turn my lights from auto to off and i would turn my stereo off. Again this worked great until last week when my truck wouldnt start due to no power after my 8hour work day. It starts fine after sitting in my driveway for 12 hours, but i leave it plugged in so i assume its easier on the truck when its warm. The new lights are all led, and i have disconnect them, and i put a switch on the power line for my sub. So then i figured it was the alt, and i planned on replacing it. On a seperate issue, i noticed that my ficm drops to 45 volts at start up, and it starts super rough. I cant even use my remote start in 30 degree weather, and when it does start (only when not plugged in) white smoke billows out for 30-45 seconds.
So i realize that i have a few issues here, but does anyone think they could be related? I have been searching and trying to do some research, and up until i read this post
ficm/ battery drain
i thought i had two unrelated probelms. If they are related, which one should i replace first? I really want the swamps 58v ficm, but i cant afford my truck to be down for more than a few days right now. At this point in time, i also dont have the extra money laying around to justify replacing a properly working alt or ficm (thats if one went bad and is affecting the other).
I apologize for the novel i just wrote, but i didnt want to thread jack rageingbulls thread, and i wanted to include as much info as possible. Please let me know what you think. Thanks much, have a good one.