Won’t crank plenty battery

hey all.

I dropped my wrench as I was trying to tighten one of the brackets that connect there from the block to the upper side and accidentally touch the wrench to the alternator and the ground and I got sparks figured something happened. Then I went and tried to start the truck I had plenty of battery power but it wouldn’t crank over it wouldn’t do anything there was no sound or anything and then I noticed that the fan motor won’t turn on either nor Will the stereo. I am assuming that I frosted a fuse or relay. Can someone help me out? I’ve checked the fuse boxes but don’t really know what I’m looking for. I’ve pulled fuses. But I have a feeling it’s one of the bigger square ones and I’m not sure how to even pull those.

 

It sounds like you blew the big ALT fuse. It’s bolted together down inside the fuse box, a bit of a pain to replace.

Do a search here, there is a thread on the topic.

 

Should be a 60A and 120A next to each other, the 120A is the alternator fuse.

Hopefully they changed to plug-in fuses... the big ones in my '01 have a bolt on each leg, and required splitting the guts of the fuse block out of the housing to get at them.

Reasons to disconnect your battery ground when doing such stuff... from experience having to scramble to get one on a customer's Honda when I thought I could swap the alternator "hot".

 

Lesson learned. Just changed the spark plugs is all. And that bracket was in the way. Thought no biggie. But I was wrong.

Thank for your belp

 

Yep, sounds like you blew the alt fuse - it connects power to the fuse box which explains why other components don't power on. I have a thread on how to remove the fuse. The fuse is reddish/pinkish with a clear top so you can see if it's burnt out before tearing about the fuse box. It's a 140a fuse if you have the tow package. Even if you don't, you may want to consider getting the 140 in case you or the next owner upgrades the alt.

https://www.tacomaworld.com/threads...-box-battery-wire-replacement-upgrade.420450/

 

Look on the bright side... my dad once learned this lesson when he lit my mom's Subaru on fire putting a headlight bulb in. Not even joking.

You have to move the battery to get to the bulb, he reconnected the ground first, and decided an old Craftsman 1/2" drive ratchet with a deep 10mm were good enough to tighten terminals, and lost his grip on it tightening the positive... whence it fell on the fuel rail supply tube.

 

A good lesson for us all

 

I found that 140a fuse it is blown. Thank you. Is theee a trick to removing it? And can I get it at a normal parts store?

 

Check the link Chuy posted above. ^

 

Very difficult and is dealer only. While replacing, make sure to document what is disconnected etc.

You have to remove the battery, cut factory zip tires and flip up the power distribution box.

 

Its not very difficult. Only 3 things to disconnect, including a battery terminal and the fuse itself - removing the battery is not even necessary. No ‘zip tires’ to cut either. Its not a walk in the park, but not rocket science. As Eric from South Main Auto says, ‘If I can do it, you can do it.’

 

Ok thank you. I got it done. Although I replaced it with a 120a fuse just to get the truck started. I couldn’t find even one auto part store that carries the right fuse so I had to order it in.

Thanks for all of your help

 

The 120 amp fuse will hold up fine. It only becomes an issue when the alt nears max output. If you don't hook up a trailer, you may never need to worry about it. Even then, all your electrical components would have to run simultaneously.