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05-16-2008, 01:59 AM
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#1 |
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Registered User
Join Date: Oct 2007
Location: rockville, md
Posts: 257
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Gas Gauge problems-
I having some gas gauge problems; Problem one, my needle fell off of the gauge and I got it back on. I put a new sending unit in because I couldn't get the gauge to read correct, its off. I let my truck run out of gas so I could tell where a empty tank would be. I then placed the needle to empty, I went and had ten gals of gas put in, it nows reads a full tank and and half. How do I get this read correct?
TJ |
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05-16-2008, 02:05 AM
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#2 |
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Registered User
Join Date: Feb 2008
Location: Phoenix, Az
Posts: 1,204
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Re: Gas Gauge problems-
My guess would be the new sending unit is a different ohm than the gas gauge, could of been the problem previously too. The stock gauge is 90 ohms and the sending unit should be the same.
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R.I.P. Scott Kalitta
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05-16-2008, 02:21 AM
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#3 |
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Registered User
Join Date: Apr 2000
Location: Bonne Terre, Mo
Posts: 3,005
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Re: Gas Gauge problems-
When you disconnect the wire from the tank w/ key on it should drop to E. If that is true you could ensure U have a good GRD by adding a wire to each the gage panel & sending unit. Retrace wire from tank to dash. Only if you have the correct 90 OHM sending unit & gage.
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'69 Chevy Long Fleet & '71 GMC Short Step & Project "ODD BALL" "You can wash a pig, soak it in most expensive perfume. In the end it is still just a pig." ODD BALL build thread http://67-72chevytrucks.com/vboard/s...d.php?t=478629" |
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05-16-2008, 04:28 AM
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#4 |
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Msgt USAF Ret
  
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,709
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Re: Gas Gauge problems-
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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05-16-2008, 07:07 PM
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#5 |
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Registered User
Join Date: Oct 2007
Location: rockville, md
Posts: 257
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Re: Gas Gauge problems-
Does it matter where you place the needle if it fell off? Does the gauge reset itself if this happens. I thinking I don't have the needle in the correct postion
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05-22-2008, 09:55 PM
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#6 |
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Registered User
Join Date: Oct 2007
Location: rockville, md
Posts: 257
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Re: Gas Gauge problems-
Does it matter where you place the needle if it fell off? Does the gauge reset itself if this happens. I thinking I don't have the needle in the correct postion. Its jumpimg all over. I did the unhooking of the wire at the tank and its go to full then I groung it and it goes to empty.
TJ |
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06-06-2008, 12:45 PM
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#7 |
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Registered User
Join Date: Oct 2007
Location: rockville, md
Posts: 257
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Re: Gas Gauge problems-
Needle fell off again, does it matter where you replace it back ? location.
TJ |
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06-06-2008, 01:03 PM
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#8 |
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Registered User
Join Date: Oct 2006
Location: Oakridge Oregon
Posts: 1,865
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Re: Gas Gauge problems-
Yes the clocking location does matter.
You can index it with a full or empty tank. Put some dielectric grease on the lead wire that plugs into the sending unit. Also clean a small part of the tank behind one of the mounting bolts and threads for a good ground for correct resistance.
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68 CST SWB - Gold/White 50th anniversary /TH350/Buddy Buckets/3.73 Posi/dogdish caps. 68 K10 Burb - Gold/White 327/SM465/NP205/3.73 "Daa Burb" build thread |
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