2003 Crown Vic went crazy on me

Check it out people I have an 2003 crown vic Police interceptor I drive it daily parked it last night went back this morning put the key in no dash lights totally dark,then i try to start it thinking its my battery cranks but wouldnt start. I go purchase a new battery same thing so I checked it over no brake lights, no power to radio no dash lights,wont go into any gear.so i changed the BOO nothing what do you think it could be? About to go and change battery connections any help would be nice. ooh for the funny guys im not junking it LOL.:grinyes:

LOL... Not junking it.

I would think negative battery connection first. Check ground to engine, ground to chassis aswell.

thank you so very much im going to do that an ill keep you posted

Ya say it cranks fine when you try to start? Take your jumper cable set and attach both negative and positive cable clamps to the negative (-) side of the battery,make sure it's a solid connection. Then take the other end of the cable set and attach one clamp to some solid metal on the engine like a lifting hook or large accessory bracket,(alt,p/s,etc). Then attach the other cable clamp to a solid ground on the body.What your doing is creating new ground straps from the battery to the engine and body to see if theres a short with the cars straps. Make sure nothing gets attached to the positive,(+) side of the battery.Theres nothing invasive or harmfull to the car doing this as long as you keep the cables clear of the fan and belts and the positive terminal of the battery.Crank the engine and see if it starts. If you get a result then eliminate one of the cables or the other to narrow it down. Report back.

ok as of right now I get no power to gauges, power windows, radio, trunk popper brake lights not working and car wont move from park unless i turn it to right before the on position. when i turn key to on position car cranks but wont start

nothing happen same result no power

nothing happen same result no power
If you have a solenoid on the side of the fender. Try putting a jumper cable across the sides of the terminals and check if it will start.

dont have a solenoid but as i look no power is running to any of the car just the headlights and interior dome lights arrrggg this is killing me

Have you considered a bad ignition switch?

checking switch in the am

Changed ignition switch and put in new battery still no power
Driving me crazy, it still has no power going to anything

Haven't seen any breaks in harness still checking

Changed ignition switch and put in new battery still no power
Driving me crazy, it still has no power going to anything
These switches have to be adjusted properly to function properly. http://www.ebay.com/ search 370883559885 Look at picture. Are any relays in the wiring diagram? Haynes usually has a wiring diagram. Use a DVOM and check for a blowed fuseable link in the electrical center. Usually along side the fender in the engine compartment with a black cover on it.

I have some hot fuses and some not hot looking for fusable links now

I have some hot fuses and some not hot looking for fusable links now
Some fuseable links look like this http://www.ebay.com/
Search 261312634056 I think this one is for computer.
Auto parts stores carry them in different amps.

Ok I'm getting power to the main fuse box under hood but only have power in some fuses in the car any ideas

ok just rigged up my electrical in the car sent power to the fuses that were not getting power now starting and running so now i know i have an electrical issue 3 weeks to find out its probably just some wires now im on a mission to find the actual problem

ok just rigged up my electrical in the car sent power to the fuses that were not getting power now starting and running so now i know i have an electrical issue 3 weeks to find out its probably just some wires now im on a mission to find the actual problem
You have made good progress. http://www.alldatadiy.com/
They have wiring diagrams. Cost $29.95