TSB #17738 fix???
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2003 FORD EXPEDITION: 17738 10008238 20040401 110000 ELECTRICAL SYSTEM
TSB data for: 2003 FORD EXPEDITION
Bulletin Number: 17738
Sequence Number: 10008238
Date: 20040401
Component Name: 110000 ELECTRICAL SYSTEM
Make: FORD
Model: EXPEDITION
Year: 2003
Summary:
CHARGING SYSTEM WARNING INDICATOR INTERMITTENTLY ON WITH POSSIBLE DIAGNOSTIC TROUBLE CODE (DTC) P0620. *TT
TSB data for: 2003 FORD EXPEDITION
Bulletin Number: 17738
Sequence Number: 10008238
Date: 20040401
Component Name: 110000 ELECTRICAL SYSTEM
Make: FORD
Model: EXPEDITION
Year: 2003
Summary:
CHARGING SYSTEM WARNING INDICATOR INTERMITTENTLY ON WITH POSSIBLE DIAGNOSTIC TROUBLE CODE (DTC) P0620. *TT
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Thread Starter
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Because of the intermittent charging light, I don't have an OBD scanner to use. I'm just wanting to try a few things, so I figured being that I'm not the only one with this problem I should try to see if my problem is the one the TSB is referring to. I've checked my voltage from my alt, had my alt load tested etc. and none of those helped with diagnosis. I was to the point where I was going to just assume this was a "GREMLIN" and tolerate it.
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From: Thousand Oaks, CA
Did you check the wiring harness from the alternator to see if it is rubbing anywhere and subsequently worn through the insulation?
I've seen an alternator harness rubbing on an A/C line wear through the insulation, short out to an aluminum A/C tube, melt the tube and release the coolant.
I've seen an alternator harness rubbing on an A/C line wear through the insulation, short out to an aluminum A/C tube, melt the tube and release the coolant.
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In that case your serpentine belt could be worn and slipping, the belt tensioner could be weak allowing the serpentine belt to slip, or if the battery is old the intermittent flashing can happen.
Laughing Gas
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From: Melbourne, FL
I found this on mine when I changed my alternator. Hadn't rubbed all the way through yet, thankfully. I split a vacuum hose and taped it around the wire.
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Check charging system flickering...I think it's gone.
Did you check the wiring harness from the alternator to see if it is rubbing anywhere and subsequently worn through the insulation?
I've seen an alternator harness rubbing on an A/C line wear through the insulation, short out to an aluminum A/C tube, melt the tube and release the coolant.
I've seen an alternator harness rubbing on an A/C line wear through the insulation, short out to an aluminum A/C tube, melt the tube and release the coolant.
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