I have a 99 cavalier it starts and shuts off after about 2 seconds...I brought it to a garage and finally after two weeks they had thought they found the problem...The theft system. So they replaced the part and it worked for the night and low and behold it wouldnt start again the next day...Dont know what to do so if anyone has had the problem or knows what it could be please help me out!!!! Thanks!

 

What dose your car do besides not start.
Dose it turn, or not do anything when you turn the key? Do you have the chip in the key? Generaly if you get one made without the chip it will start and run but shut off after a few seconds.

 

it starts and shuts off after a few seconds and the theft system lamp flashes...

 

put the key in it turn it to the on position dont start it tho
the theft light should blink wait ten minutes or untill the light stops blinking
that should fix it for you

the computer will learn whats wsrong and adapt for it
and it should start and run just fine

mine had a aftermarket remote start and
the same thing happened to me
so just wait the ten minutes or so and you should be fine

let me know if this works for you

 

Thanks!!! Ill give it a shot

 

Hey did that work for you

 

If it didn't do you have a key with the chip in it? If you do and you only have one try getting a new key made.

 

just for ref
the chip
is actually a resistor
and allows a certain amount of curre nt to flow
pretty smart isnt it

 

It started right up the next morning with no problem I drove it to school and then when I got out of class at like 12:30 it wouldnt start and I tried leaving it with it on for 10 min and then tried to start it and it was still very angry and wouldnt start...I know absolutly nothing about cars so the key that has the chip in it does it have a little boot on it? If so I have two of those and one that does not...But needless to say my poor little car is sitting in my drive way waiting to go back to the garage...

 

was the theft light blinking
or what