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GEM causes '-------' odometer problem with engine shutdown, intermittent malfunction?
The White 1999 Expedition is at K&D Auto Electric getting a GEM and fuse relay box changed out. About $410 in parts. The headlamps go on and cannot be turned off. I wonder if the lack if 'communication between the GEM and the PCM is the cause of the '-------' on the odometer and subsequent...- Duane Wong
- Thread
- Replies: 7
- Forum: 1st Gen - 1997 - 2002
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'-------' on odometer with no run condition.
If you remove the 304 relay no power to PCM, the technician will get the telltale '-------' on odometer where there should be miles driven. I switched 301 fuel pump relay with 304 PCM Relay on drivers side under hood. The Expedition started and ran fine with numbers on odometer. The real test...- Duane Wong
- Thread
- Replies: 1
- Forum: 1st Gen - 1997 - 2002
