ficm problem
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ficm problem
My 2005 was having classic ficm hard start cold weather issues. Changed ficm power supply and it was fine for 6 weeks. Now its doing the same thing in warmer conditions. I think its the ficm again. The batteries are fine. My battery light goes on every so often only because the voltage is slightly high. Could this be a source of ficm failure? Any recommendations of FICM powersuppy replacement that wont fail.
Thanks
cutbrain
Thanks
cutbrain
Fleet Owner
Joined: Nov 2003
Posts: 27,929
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How high does it actually get? I see 15 volts at times and I don't get the battery light.
IIRC there is something in the manual about the point at which you get a light from HIGH battery voltage, but I can't recall the value.
The alternator issues may be causing FICM issues. I would test that alternator. Who knows, it could be putting out some A/C current.
If you do end up deciding that the FICM power supply has issues, I would send it in to get repaired and upgraded - I would use FICMRepair.com , or CircuitBoardMedics.com. I prefer FICMrepair.com.
IIRC there is something in the manual about the point at which you get a light from HIGH battery voltage, but I can't recall the value.
The alternator issues may be causing FICM issues. I would test that alternator. Who knows, it could be putting out some A/C current.
If you do end up deciding that the FICM power supply has issues, I would send it in to get repaired and upgraded - I would use FICMRepair.com , or CircuitBoardMedics.com. I prefer FICMrepair.com.
Mountain Pass
Joined: Sep 2019
Posts: 195
Likes: 15
From: British Columbia, Canada
How high does it actually get? I see 15 volts at times and I don't get the battery light.
IIRC there is something in the manual about the point at which you get a light from HIGH battery voltage, but I can't recall the value.
The alternator issues may be causing FICM issues. I would test that alternator. Who knows, it could be putting out some A/C current.
If you do end up deciding that the FICM power supply has issues, I would send it in to get repaired and upgraded - I would use FICMRepair.com , or CircuitBoardMedics.com. I prefer FICMrepair.com.
IIRC there is something in the manual about the point at which you get a light from HIGH battery voltage, but I can't recall the value.
The alternator issues may be causing FICM issues. I would test that alternator. Who knows, it could be putting out some A/C current.
If you do end up deciding that the FICM power supply has issues, I would send it in to get repaired and upgraded - I would use FICMRepair.com , or CircuitBoardMedics.com. I prefer FICMrepair.com.
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