The jeep ('95 4L) has all the symptoms of a Crank Position Sensor being bad, to the extent that I bought one and spent the day replacing it (could they have picked a worse place to put that thing?!). Jump in and still has the symptoms, cranks, and no start. I have done the checking of wires and all that free stuff, but have yet to do the easy job of cleaning stuff yet, that will get done tomorrow. Checked the codes, get an 11 and a 55, 11 is Crank Position and/or Cam Position Sensor no signal. 55 is end codes, so I know I've only got one. Before I go drop $35+ on a Cam sensor (of which it is not called by any part store, anyone have a PN#?), I'd like to get some input. The wires all look good, stuff is a little dirty, the plug seemed kinda oily, but not too bad. I haven't checked the ASD relay would that need to be reset? How common is a cam sensor going bad? It seems as the Crank sensor is the common one to go, yet mine has 155k on the original. Any input would be appreciated.