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- - tach issues (https://67-72chevytrucks.com/vboard/showthread.php?t=660843)

michael bustamante

02-19-2015 07:54 PM

tach issues

so i just picked up a decent looking sonoma 2wd 4.3 standard ext cab. the tach is dead and down. any ideas where i can start to look into this?

95 S_Trucker

02-19-2015 09:52 PM

Re: tach issues

What year is it?

michael bustamante

02-20-2015 11:23 AM

Re: tach issues

its a 99, nice truck for the price.....150k and quick!

michael bustamante

02-20-2015 10:05 PM

Re: tach issues

Mids; can you please move this to the s10 or electrical forum. Thank you

95 S_Trucker

02-21-2015 09:54 AM

Re: tach issues

Bet someone with a bi directional scan tool and perform a gauge sweep. All the needles should move through the full range.

I would bet 99% that the gauge itself has quit.

michael bustamante

02-22-2015 05:45 PM

Re: tach issues

Boy I was hoping that wouldn't be it. I'll have find a guy to sweep em for me

michael bustamante

03-02-2015 12:38 AM

Re: tach issues

So I went to the yard. Found another cluster. Bought it. Then thought maybe I should check all the fuses. Found a blown fuse under the hood marked "gauge" ( there's 3 marked gauge) and viola!!! A working tach!
Anyone need a cluster in nice condition?

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