Tach and Battery Light

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Tach and Battery Light - 7/13/2008 7:00:41 AM    vinvelasco   Posts: 39 Joined: 4/5/2008 Status: offline there were a few incidents when my tach doesn''t move at all after a cold start. but it always worked fine again after a few minutes. when this happens, the battery indicator on my dash lights up as well and turns off at the same time as the tach ''re-functions''. this only happened a few times before yesterday. but from last night and today, its always happening when i start it up. and the last time, it didn''t go away. (the battery is less than a year old by the way). and this happened after i finally fixed my idling problems! any ideas? _____________________________ Mechanically dumb... but learning and now slowly getting there (a bit) Post #: 1

RE: Tach and Battery Light - 7/13/2008 7:09:37 AM    Spike555 Posts: 3032 Joined: 6/22/2007 From: Grand Rapids MI Status: online Your alternator is toast. The battery light being on means that the battery is being drained, the tach not working means the alternator is not putting out. The tach runs of the alternator. 30 min job to replace it. _____________________________ If it ain''''''''t leakin'''''''' it must be empty! Yes, one man can change the world. If the citizens are affraid then they are easier to control. The "Storm Trooper",''''''''97 in Alpine White. (in reply to vinvelasco) Post #: 2

RE: Tach and Battery Light - 7/13/2008 9:25:37 AM    okdiscoguy Posts: 2404 Joined: 2/16/2007 From: Tulsa, OK Status: offline X2, I think Autozone carries one with a good warranty on it... _____________________________ 97 Discovery SD-7 156K miles 04 Cadillac CTS 34K miles Good Oil number of posts does not = knowledge (unless it is me) (in reply to Spike555) Post #: 3

RE: Tach and Battery Light - 7/13/2008 10:50:00 AM    vinvelasco   Posts: 39 Joined: 4/5/2008 Status: offline i assumed it was the alternator. ill have it tested 2morow. the weird thing is i drove it just now and it ran ran perfectly. is there any chance that its just sum loose wiring or sumthin? _____________________________ Mechanically dumb... but learning and now slowly getting there (a bit) (in reply to okdiscoguy) Post #: 4

RE: Tach and Battery Light - 7/13/2008 11:05:53 AM    dodge_mich   Posts: 31 Joined: 2/17/2008 Status: offline Did you have the serpentine belt off recently?  I''ve heard of the alternator slipping if the belt is routed wrong since the wrong routing significantly reduces the contact patch on the alt. pulley.  It would be more likely to slip when cold-the belt would get more grip as it heats up... _____________________________ 1994 Land Rover Discovery 123k and counting... (in reply to vinvelasco) Post #: 5

RE: Tach and Battery Light - 7/13/2008 11:07:20 AM    Spike555 Posts: 3032 Joined: 6/22/2007 From: Grand Rapids MI Status: online Yes it could be a lose wire on the back of the alt. Pop the cover off and wiggle the wires. Tighten as needed. _____________________________ If it ain''''''''t leakin'''''''' it must be empty! Yes, one man can change the world. If the citizens are affraid then they are easier to control. The "Storm Trooper",''''''''97 in Alpine White. (in reply to dodge_mich) Post #: 6

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