After a car wash, my car turn on fine, it was running just fine then the battery light came on,? then the warning came on, on the LCD computer, I Pick my daughter up from daycare and started driving the car, with out any problems, than I notice the car getting heavy ( if you know what I mean ), then ABS, came on, Brake light and I think all of them came on, then the gas pedal was not giving me any power At all!!! then the car just went off!!! I push the car out of the street, call a friend gave me a jump start, car turn on drove it for less than a block, it went off again with the same problem....

What could Be going on, Please HELP ME!!!!!!

Thanks!!!!

 

Do you have CEL on?

 

Otherwise check the battery and see if it is okay. The source of your problem may be your alternator as well.

 

never heard of this but since u say it happened after u washed it i would try to see if the battery got damaged the next thing i would think of is the ecu
just saw a used one for a 2000 4.2l on ebay for like 50 buks

 

ECU light did not came on just went to see the car about a mile from my house, it turn on just fine, the first light that came on was the Battery light, after that Brake, and ABS, then, after driving for about 4 block, I notice all the interior lights started to Dim, then it all went off, the car wouldn't accelerated, at all and just park it, and came back home just now.

How do I check the ECU?

 

Dont think is the Alternator, because if that is the case the car wouldn't turn on for me at all today. Now it did sat on park for about 4 1/2 hours...so don't really know.. Any more suggestions will be Greatly appreciated.....

 

Mike, what year is your car? C4s have the battery under the backseat.
Obviously if it occurred after a wash, you must be having the battery under the hood.
Have you physically inspected the battery (connection cables; signs of water pooling in that "firewall valley", etc)?
Moving on...
If your battery is fine, then it's either the alternator not charging the battery - as already Gaser alluded to (so you operated the car on battery current itself until it died on you) or the voltage regulator. That explains the sudden "death" within a block after your friend gave you the jump.
By the way - the starter is responsible for "turning on" your car, not the alternator.
I would say
1) get your battery to Auto Zone (or similar) and have it tested.
2) if it's ok, then probably it's time to start investigating the alternator and/or the voltage regulator.
And for that matter, it may be a good idea to also check all the ground cables around.

 

The car is a 2000 a6 2.7t, when the car went off of me the first time I did check the battery, and it was a little wet. after the car sat for about 4 1/2 hours, it went on just fine, not any problems or anything after the car being running for about 4 blocks it started to act up, it is my understanding, that the alternator charges the battery, after the battery helps the started turn the car on. but the car goes off while the car is running.

Now someone ask me about the E something how do I test that? well the car has sat on park for 10+ hours I am going to let it sit for a bit longer so it can suck up some sun. and see what happens after that...

 

Car 101: the battery charge is maintained by the alternator, which sends current to the battery through a voltage regulator to ensure the battery is not overcharged. If either of those fail, there is no charge going to the battery and it will quickly die. Letting it sit for a few hours allows it to build up a small re-charge, but that is quickly used up.

I would have the battery checked first. A bad battery will either not accept a charge or fail to fully charge. You may have to take it out of the car (if you have a Bose radio that locks, this is a PROBLEM), have it fully charged, and then tested. If it was me, I'd get the car home, buy an inexpensive trickle charger and leave it on the battery for 24 hours, and then take it to an Autozone to have the batter and alternator tested (don't use radio, lights, or any accessories on the drive to preserve the battery charge).

If the battery is good, I'm not sure an Autozone can tell the difference between a bad alternator and a bad voltage regulator. It may be mechanic time.

Last, it's possible, but unlikely, that the battery posts are shorting out because of the water between them. Make sure the top of the battery is dry and the cables/posts are clean and tight.

 

1. Turn the ignition to on position without starting the car.
2. Read your voltmeter located at the right bottom of the gauge pot.
3. If the gauge says less than 12V, then your battery is either shot, or not charged. Get the battery over to Napa, Kragen, or whereever, and they will run a test for you for free.
4. If the battery is good, but not charging then your alternator is shot. Your car will start with bad alternator. Also another way to check is to read the voltmeter again while the car is running. If you are getting less than 13V when the car is running, then your alternator is shot.