hey i have a 94' Chevy Blazer... and it won't start....when it die i had the starter replace and was working good for a week now it act like its tryna start up but doesn't....if u keep playing with it. it will start up but thats just making matters worst....i though it was the starter but i got the starter tested and the starter was good and ran fine....then i got the battery tested and the store said it was 100% good battery...so i was told it was bad wiring...the small wire connected to the starter which i was told that gives the starter the power to spin was bad....how do i replace this wire??....traced the wire back but it ended in a bunch of wire going different ways...i'm lost please help

 

There is a wire coming from the battery to the starter, this wire provides the power to the starter. In order to help with the little wire I need to knwo which terminal its attached to on the starter, same as teh big wire, or by itself?

The wire on the same terminal as the big wire goes into the cab of the truck and typically powers the cab.

The other wire comes from your ignition switch and activates your starter solinoid which makes the starter work.

 

The small wire you're looking for is purple and runs from your C100 connector, Pin location H1 (the big box on the left side mounted on the firewall). This powers your starter solenoid and should be labeled "S" on the solenoid. Should be a 12 gauge wire.This is from the 1994 factory wiring diagram. Just chabged ny starter and solenoid (just the solenoid was bad until I tried to remove it) so I feel your pain. You don't have to rewire the circuit back to the switch. Are you sure the wire is bad and not the solenoid? Let me know if you need further help. Make sure you use the proper gauge wire. The color isn't that important but if you can get the right one it helps down the road. If you can't, label it Purple or PPL woth some sleeving or tape.

 

thx for both of your replys...umm Gimpy, yes its purple, as far as the solenoid or bad wire i'm not sure...but me and a friend though it was the wire because the battery wasn't given enough power to the starter...and u said 12 gauge wire kool thx...a man in a store told me that the thick wire was good for that small wire side of the starter...dont ask me why im just saying but 12 gauge sound about right. And Hans your right the big one goes to the postive side of the battery the small one ignition and activates my starter.

 

You might check and clean your ground wire from your battery to the engine before you rewire stuff. The way wires go bad is they get burned (by like lating on exhaust components or broken inside because of over removal/installation (read abuse). If your STARTER isn't getting enough voltage, it's probably not your solenoid wire. If your solenoid isn't getting enough juice then yes the small wire could be it. I would suspect the solenoid before the wire. All the wire does is to engage an electromagnet (inside the solenoid) to make the big connection to pass enough juice through the large contacts inside the solenoid. That's how it works. It really doesn't take that great of a connection for it to work but it does have to have a halfway decent one. The big starter wire and ground wire are probably more important.

 

we ran some test with the soleniod with my battery so yeah it is the bad wire....after changing most of the big starter wire it started up!! but it still struggles....i'm wondering if its because i left the both ends of the big wire the same? or is there a problem where the ignition is?