heres what i got. turned my car on left it running about 10 maybe 15 minutes. checked my voltage gage in the car and it was bearly up. my car was starting to over heating. so i turned the car off the fans did not kick on i think bacuase the battery was dead so was the alternater. i went and got a new alternater fired it up and still the same no charge. there is a brn wire g8 off of c100 that is supose to hook up for charging,starter and cooling system and its hooked up can some one shed some light please

 

Are all your connections clean and tight to the Batt. and starter?

 

When you tap the negative battery cable to the terminal, what does it do?

If it sparks, you have a bad ground somewhere. When my battery lost its charge (went from brand new to dead in 2.5 days) it turned out that the ground strap going from the passenger side cylinder head to the firewall was corroded. Replaced that and my battery holds a constant charge now.

 

Hello z91bowtie,

The brown wire that goes to C100 on the firewall goes to the "FAN" fuse on the fuse block. Prior to that it splits off and goes to the coolant fan relay and the heavy duty coolant fan relay. The small red wire is a fusible link that goes to the starter solenoid. The larger red wire or red/black wire is also a fusible link and goes to the battery. If all wires are good and the alternator is good, the next logical choice would be a battery that just won't charge. Hint for the fans not coming on: Remember the brown wire and fan relays?

 

One of your fusable links could be fried. Happened to me twice...

 

i hooked up a red wire (a )off of lt1 c220 to ignition fired it up and voltage is good and battery is charging. that brown wire for the fans also hooked up to ignition and nothing.

 

no post

 

Happened to me last fall, new alternator and still no charging. Run a wire from the plug on your alternator--i can't remember which side, look at a wiring diagram, and fun it to the + battery side. Mine worked just fine after that. Car had an engine swap so now things are all new, but hey, it worked for me in a pinch.

 

i got the battery to charge had a red wire off of c105 lt1 connecter i did not connect. thanks guys

 

Not entirely true. If it sparks bad, I'd worry. If it's tiny, ignore it. It just means there is a load, and in most cars there is always a load. How do you think your clock has the right time? And some amps keep their caps charged constantly.