Re: turn key and zero...nothing!
Recently there have been a series of posts of similar nature. I recommend you search this forum for click, nothing, etc. Many of the tips in a situation like this are:<br />1. Really Clean your battery post.<br />2. Disassemble and clean third party battery post connectors.<br />3. Clean the battery terminal connectors on the selenoids.<br />4. Jumper directly from the Battery + to the starter post (large standoff) to see if motor turns.<br />5. Using Voltmeter measure voltage drop from + of battery to the starter standoff.<br />6. Measure the voltage directly on the battery terminals.<br />7. Using sewing needles you can pierce wiring to get voltage drop measurements across the fuses.<br /><br />The Idea is to unquestionably know that the battery is producing +12v with suitable amperage to turn the starter. If their is no voltage drop across the wire going from the + to the starter, and the voltage measured when you attempt to turn the engine is the same at the + post and the starter and it is well below 12v then the battery is likely bad.<br /><br />If any resistance (corrosion) exists in the wiring it will cause a voltage differential across the wire when voltage/current is applied. In my case nearly 10 volts was dropped across the wire and the root cause was the aftermarket battery terminal posts where the wire was clamped down.<br /><br />Good luck and with a little detective work you'll get a better understanding on how this all works..
Is there a circut breaker??