Hello - long time stalker on this forum ...first post! I'm running a 2002 Freightliner 140" lowtop with 400,000 miles. Still going strong! But - the other day I had a squealing noise AND battery light on dash was intermittently coming on...but not staying on. I determined the squeal to be the alternator pulley...which made sense that it would cause the light to flash on/off since it was slipping and not charging. I replaced the alternator AND belt. No more squealing, but the battery light still comes on intermittently. It stays on a few seconds, then goes off for a few seconds. There's really no rhyme or reason. The battery is new (as of January). Putting a voltmeter on the alternator shows voltage usually at 13.5v, but it does dip to 11.1 and as high as 13.9. Voltage at the battery is a constant 13.5v. The wiring harness coming off the alternator is intact. Battery terminals are tight. Hooking up the Green Diesel OBD scanner does not reveal any codes. WHAT in the world else could cause this light to flicker?!?
Any suggestions appreciated!
Any suggestions appreciated!