Dead, no power period......

[99 svt]

Well, now it begins..... I went to start my SVT after work today. I opened the door, put the key in the ignition, and the car chimed once. I turned the key and got nothing. The whole car is powerless. No lights, gauges, chimes, no power period. No warning signs either. The battery is new, but I tried a jumper box just in case, and still zero power anywhere. The main 80a fuse and all the other fuses looked good. Tomorrow I'll test the battery and work my way up from there. Anyone else have this problem?:help:

 

[Tony2005]

It could be the Main fuse, ignition switch or associated wiring.

Do the lights work when turned on? Test the battery, and then charge it well and test again.

 

[Kevinm]

When you tried a jump start did the jumper cables get extremely hot?

 

[projectSHO89]

You have either a dead battery or a faulty battery cable/connection. Just because a battery is new does not automatically mean it is good.

Take your voltmeter along. Measure the battery voltage at the posts when a load (turn the headlight switch on) is applied. Do the lights work? Do you read 12-13 volts still?

If you do read 12-13 volts, connect the meter between the battery negative post and the engine ground. A good connection will read as close to 0 vdc as possible. A defective connection will show a significant reading, possibly all the way up to full battery voltage.

I'd say to repeat this with the positive terminal and its loads, however, given the rats nest of wiring in this circut, I'm not inclined to offer specifics other than to point out that it must be done.

Steve

 

[99 svt]

The battery tested at full charge, the main and alternate fuses and relays for the main power, EEC, ignition, ect. are good. There is no power anywhere, no lights or anything. Completely dead. There was no power difference with the jump either. Battery cables are clean and tight. It has a newer battery relocation kit, so I'll follow the wires and see where the power stops.

 

[99 svt]

Well I traced the power and found that a fuse in an aftermarket juntion box, though it looked perfect, was blown. I replaced it and everything is back to normal. Thanks for everyones suggestions.

 

[Tony2005]

...found that a fuse in an aftermarket junction box, though it looked perfect, was blown.....

What is in bold, happens quite often, which is why we always say a visual for the fuses don't cut it. Glad it worked out for you.

 

[99 svt]

I know, but a quick visual can help. I didn't know what the junction box was for, so I trace the battery positive to it and found my problem. I'm thinkin about pulling the NOS system out of it, which would get rid of the added junction box and any possible future problems. I don't use it anyway.