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Old 05-30-2009, 12:11 PM   #1
rlcasey75
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Join Date: May 2009
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Sunpro Tach problem????

I bought a 75 silverado k-10 and it has a Sunpro dragn tach mounted in it it was working fine and than the other day i get in the truck and notice that the needle is pushed all they way to the right and doesnt move at all until i get up to about 65-75 and than of course it goes from right to left. Any ideas anyone???????
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Old 05-30-2009, 01:09 PM   #2
silvereagle07
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Re: Sunpro Tach problem????

Sounds like a shorted wiring problem, got any pics of the wiring diagram?
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Old 05-30-2009, 01:28 PM   #3
rlcasey75
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Re: Sunpro Tach problem????

no i just got the truck and the tach manuel wasnt in it. thanks for the reply
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Old 05-30-2009, 09:56 PM   #4
team39763
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Re: Sunpro Tach problem????

You can go check on summitracing.com and look up your tach model or similar one and they usually have the directions for them. That's where I get most of my directions for parts on my truck. I believe they also include the troubleshooting tips.
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Old 05-30-2009, 10:07 PM   #5
rlcasey75
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Re: Sunpro Tach problem????

Ok thanks for the info
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