Well thanks again for the input guys, really appreciated. For now all is good but time will tell

 

Guess what, it did it again! It wont start! Guess it wasnt the lose battery cable. I think im gonna get a new ignition switch with key. Hopefully its not something like theft deterant relay

 

let me know! I'm not looking forward to being out somewhere and can't start....

also, if you get a new switch, maybe you can let us know how the installation went..? thanks!

 

Your profile doesn't say if its an auto or manual, but either way, sounds more like your clutch switch or Park switch isn't adjusted right. If its a clutch, the switch may have become intermittent. If the security is causing it, the security light would be on.

 

This sounds good in theory, But why no codes?

 

If you think it is the key chip, I suggest you clean it and the keyhole with a professional product called "Houdini". A locksmith recommended it to me and told me to never use WD40 or other spray lubricant on keys or keyholes.
Good luck.

 

The battery can easily start going bad after a year. When you tie that in with the draw of power our cars have when parked, and the lack of daily use, then our buddy the battery becomes suspect.

 

It is a A4
Yeah, the only code im getting is for my ABS or Traction Control, cant remember what it was but ill post it when i get it again.
The weird thing is, when I went to start it last night it wouldnt work. Woke up this morning and it turned on no problems. This happened Friday night as well.

 

But it's an intermittent no start. If the battery had low voltage reading I would doubt if it would recharge enough to act normally after sitting. They can, but it's more suspect to be an "open" circuit. Another reason I'm thinking this way is No Codes? Why not a "Battery out of range"?

 

If the shift lever isn't in park, it won't start. I don't know about neutral on the A4's since I own a MM6. Someone else here can advise if it will start in neutral. I think it should. It could be that your switch there is having a problem or come loose. In the case of a MM6 tranny, the clutch switch can become out of adjustment which will prevent it from starting for safety reasons. The switch itself can also go bad, but mine never has...so far. If the chip in the key isn't making the proper connections with the iginition key contacts, then I would think you would see the security light. Again, it won't or shouldn't start. Another possibility is the starter itself or rather, the solenoid within the starter. Usually you would hear a click and no turnover, however, the solenoid can totally fail since its nothing more than a combination of an electromagnet and a high current switch.

 

How is the weather there? This didn't happen with the Vette, but it did happen with another GM car I had: In warm weather, the car would not start after having been driven in the heat. It acted like a completely dead battery, but the accesories were fine. After a few hours of cooling it would start right up. When the dealer said it was the fuel pump in the fuel tank I was very skeptical. But replacing the pump fixed the problem.

 

I would bet on the key! Pull key and wait about ten minutes, then try your other key. Theft deterrent has to reset.

Edit: You must wait the 10 min. and the key has to be pulled from the ignition or the other key will not work either.

 

The weather here is cold, its about 50 degress so its not hot.
I only have one key, but I ordered one for Monday. I also went to the dealership to pick up the ignition switch, im replacing that today. If its not that im gonna try the ignition cylinder and replace that all together. thanks again fellas

 

May be repetitive, but...

1. weak cell in batt.
2. corroded cables.
3. loose cable.
4. if not, take to dealer for diagnosis.

 

anyone know how to remove the ignition cylinder from the ignition switch. got all the wires off the old one but I cant get the cylinder out of there.

 

Loose positive cable caused the same problem for me four years ago.

 

A loose positive cable could absolutly cause the symptoms you described. No
OGC5

 

it wasnt the lose cable guys. even after i tighten it wont start. then the next morning it starts up just fine.

 

My old car (Trans-AM) would not start to crank on a cold start unless I held it in the start position for a good 10 to 30 seconds... After the car was warm it would start up like a champ, but that first turn on in the morning, or if it had been sitting in the cold for a good while, it would NOT turn on for a long time..

Have you tried holding the key in the start position for a good long while? Replaced the battery and the cured the whole starting issue for me.

 

PM sent on ignition cylinder. Pics did not copy, but hope this helps. Sounds like ign. must be on.