Chrysler Repair: Test of the crankshaft sensor on 2.5L V-6 engine, crankshaft sensor, pulley bolt

Question
Roland,
   I have a '99 sebring with the 2.5 engine and 140,000 miles. From reading past posts I think the crankshaft sensor may be going bad. It has recently started to stall with no warning. you will be driving down the road and all the sudden it dies. Starting back up can be instantly or can take 5 to 10 minutes. Once it restarts it will run fine until the next time it dies which can be an hour or 3 days of routine driving. I have a mutimeter and would appreciate information on troubleshooting the sensor. Thank You in Advance, Chuck

Answer
Hi Chuck,
That is a reasonable theory. At the sensor, probe the gray/black wire with a fine straight pin. Then do the same for the black/light blue wire. When the engine has cut out, use a digital voltmeter to test the voltage between the two pins. Have on board a ratchet and socket that fits the crank shaft pulley bolt so you can turn the engine by hand. With the ignition switch in the "run" position, as you turn the crankshaft the voltage should oscillate between 5.0 and 0.3 volts, 3 times for every revolution of the crank. If that isn't seen to be happening then the sensor is bad.
Roland