Caravan 97 w/3.0 The timing jumps up and down at idle as viewed with
timing light or Autotap scan tool. Ignition is composed of Cam Sensor,
Crank Sensor and PCM. Any guess on what the issue is (if any). Has anyone
else observed the timing at idle and is it steady ~12 deg BTDC?? Seems to
run OK but doesn't seem right to me.
That is normal to see the timing jump around, The computer is controlling
it!!! The proper way to check/adjust the timing is to disconnect the coolant
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