Chrysler Repair: 1998 Chrysler Concorde timing chain/cam sensor, 1998 chrysler concorde, camshaft sensor

Question
First thanks in advance for your time.  1998 Chrysler concorde 2.7.       
It just started running rough, at a normal acceleration it's feels like it is missing, and then at a steady speed it continues to miss.
Would a worn timing chain have anything to do with the cam sensor or crank sensor? if one sensor is bad do they both go bad?  Should they both be replaced?  I took it into a shop they said it was the cam sensor, they replaced it and said car ran rougher, and that the chain was hitting sensor.  I was told it needs a timing chain kit.  Car seems to start just fine same as always. HELP.

Thanks
TD

Answer
Hi Tony,
I have not heard of that kind of a cause for a camshaft sensor issue. The sensor looks at notches on the cam shaft sprocket that are at a radius that is smaller that the radius at which the teeth/chain interface and also it looks at the side of the sprocket not the toothed edge of the sprocket. That is not to say there is not an issue with the timing chain but to say I don't believe the cam sensor is being damaged by the chain.
Have you tried to get fault codes? Turn 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 of the speedometer to see if the mileage reading changes to show any 4-digit numbers preceeded by a P. Let me know what those are. The number for the cam sensor is 0340 and for the crank sensor being the problem is 0320. If you don't get codes, then get a readout at an Autozone parts store via the socket under the dash by the steering column using a 'code reader'. They do it for free.
The crank sensor is at the other end of the engine and is unrelated to the timing chain.
I don't know what a  'timing chain kit' is, unless they mean do some work on the entire chain system. Without proof of that I wouldn't buy in.
Before you do the code readout, you might do well to disconnect the battery for a minute to erase all previous codes. Then drive it for a while and do the code readout via the key or via a plug-in code reader at Autozone. Because you disconnected the battery to erase the codes, that will always set a 1684 code so you can ignore that one.
Roland