Chrysler Repair: car starts/ wont start, 99 chrysler lhs, chrysler lhs

Question
I have a 99 chrysler lhs and sometimes it srts and sometimes it wont start. hen it wont start i hook it up to jumpers and it will start but sometimes it does a rough idle and either does a weak start or cuts off when it idles. do you know what i need to fix?

Answer
Hi Jeffrey,
The quickest answer would be to get any fault codes that may be stored in the engine control computer. Use the ignition key: "On-off-on-off-on and leave on" doing that in 5 seconds or less elapsed time. Then watch the odometer window in the cluster to see the mileage reading change to show any four-digit numbers preceded by a P. Tell me those numbers and we can then go from there to solve the problem. Because you get help from a jump, perhaps your battery is getting near the end of its useful life, so see how old it is and compare that to the warranty life.
Roland
PS Sorry for the delay but I just found your question in the 'pool' to which it had been referred by the other expert.  Please 'rate' my answer, and where you see the question about 'volunteer of the month' please consider a 'yes' response. Thanks