Tach Still Not Working - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 02-13-2005, 10:26 PM
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I dont know what all has to do with the tach, but mine still isnt working. what all should i check to get it working. any help would be great, thanks. Chris---
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#2 (permalink) Old 02-13-2005, 11:54 PM
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try giving the dashboard a few wacks, i know when my spedometer stops working i just give a good ol smack on his head its all set.
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#3 (permalink) Old 02-14-2005, 12:36 AM
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when mine stopped working it was becuase of a fuse... i beleive (atleast on the e36 there are 3 fuses that control your tach speedo gas guage etc...) look in the manual for which #s they are.... but take them out and replace which ever one is out.. should do the trick... might as well replace all 3 (they might not appear to be blown (mine didnt so i replaced all 3 and waa bam my tach worked again)

The other thing the chord could have came undone in the back of your guage cluster... and that just sucks

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#4 (permalink) Old 02-14-2005, 10:48 AM
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so if the cord came undone, do i jstu take the cluster out and plug it back in or what? in the back of my cluster, there are two main harnesses, and one one-wire connector that plugs into the back. is there supposed to be more? the guy who had it before has done a lot of wirng stuff so i never know if it is correct or not. Thanks, Chris---
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#5 (permalink) Old 02-14-2005, 10:54 AM
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i dont think any e36 tachs r cord drivin......all electronic, i think they all were after like 87.
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#6 (permalink) Old 02-14-2005, 03:06 PM
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Quote:
Originally posted by tympboy@Feb 14 2005, 08:54 AM
i dont think any e36 tachs r cord drivin......all electronic, i think they all were after like 87.
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in order to have it electronic there has to be wires, and by cord i think he meant wires, there is a plug in the back of them and it prolly came undone is this what you meant?

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#7 (permalink) Old 02-14-2005, 09:25 PM
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you SI board may be going bad. the tach and the temp gauge are the most common indicators that your SI board may take a shit
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#8 (permalink) Old 02-14-2005, 10:07 PM
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well, my temp gauge still works. actually, everything still works except for the da gone mpg and tach. i replaced both the fuses and still nothing.
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#9 (permalink) Old 02-15-2005, 04:34 PM
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like i said you need an SI board
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