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Old 07-01-2007, 08:34 PM   #1
BA GT-HO
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Default Tacho needle jerky

Did a bit of a search but couldn't find any information.

My tacho needle is a bit jerky at times I have noticed, particularly at WOT. Just wondering if it's a common problem and if it can be fixed, cheers.

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Old 07-01-2007, 09:19 PM   #2
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I use to find it was when the needle touched the face of the cluster it would get jerky. Have you removed your needles at all before?
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Old 07-01-2007, 09:43 PM   #3
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Mine is doing this too today and I know my cluster has not been taken apart so it cant be the needles touching. Is it related to battery voltage?
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Old 07-01-2007, 09:47 PM   #4
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must need new spark plugs....

My EF started doing this after not driving it for a couple of weeks..... it went away after a couple of weeks of driving it.
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Old 07-01-2007, 10:08 PM   #5
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Have you had a flat battery recently or frequently? And is your alternator/battery light on?
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Old 07-01-2007, 10:37 PM   #6
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I have just bought it, so it may have had a flat battery that I am not aware of. However my battery light is not on.

Cheers for the ideas.
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Old 07-01-2007, 10:41 PM   #7
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This is fairly common.
mine has done it since new, dont know what causes it, i dont notice it any more...
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Old 08-01-2007, 08:34 AM   #8
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Have noticed this quite a bit of late, both on my ute and other AU's at work. Mine seems to do it in hot weather (high cabin temp). Have talked to an instruments specialist about it and he seemed to think it was a bad earth problem most of the time, although i have since tried cleaning up all the cluster earths and didn't seem to make a difference.
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Old 08-01-2007, 04:12 PM   #9
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My au is doing this to and it is ticking me off, mainly in hot weather to.
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Old 08-01-2007, 04:21 PM   #10
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both my tacho and speedo do this, i have removed the cluster before, and so i put it down as that being the reason. never did it before that's all.
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Old 25-01-2007, 06:05 PM   #11
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Well just as a note, mine is all fine now, I think like some people have told me it was voltage related. After a big drive of a couple 100kms non stop through the hills the needle slowly went smooth again. Now it is 100% fine even revving it in neutral.

Weird.
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Old 25-01-2007, 11:52 PM   #12
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my ute only does it when the interior is warm/hot, on a cool morning, its fine
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