My 99 LHS has an intermittent "stumble", for lack of a better term. Usually on acceleration, not always. I thought I had a bad spark plug, so I changed them. Problem still here. No "check engine" lamp, and no fault codes according to my Innova code reader. It doesn't do it at take off, but once already moving, speed doesn't seem to matter. It has done it at 35 and at 55. Any one had this problem, please let me know. Thanks, DaveC, Independence, MO.[:@]

 

Possible input speed sensor issue...when this part goes bad the symptoms often resemble a misfire.

 

Thanks for the info, replaced the input speed sensor and voila!, problem solved.
Thanks a bunch, DaveC

 

I mis-spoke, the problem still exists. I'm starting to think it may be the throttle position sensor or something of that nature. Still no warning lamp. Seems to happen at one position of the throttle pedal, regardless of speed. I have heard of this problem occurring and not setting a code. Anyone else? Thanks, DaveC8656

One other item, does anyone know if the dash clocks are interchangeable on the various Chrysler models, (Sebring, LHS, 300m, etc.) mine quit and I have seen some nice newer clocks on ebay from newer cars. Thanks again, DaveC8656[:-]