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This 98 2500 24v alternator not charging and the only gage in the cluster that works is the tach.Where should I start looking?
 

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Mopar1973Man.Com
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Check for error codes...
OBD II Error Codes

I bet money you find a crankshaft sensor problem... Being the crank sensor controls the alternator...
 

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Mopar1973Man.Com
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26,302 Posts
does'nt the crank sensor also control the tach?the only gage working.
Opps... :doh:

But still check the codes...

As for the gauge cluster that is supplied from the PCM so there could be a error code about the CCD network. As for testing the cluster try this...

Cluster Testing
 
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