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#1 |
Registered User
Join Date: Apr 2003
Location: Garland, Texas
Posts: 1,127
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fuel gauge past full??
I just replaced my Tank Selector valve and now when i switch to the right tank, it reads way past full...and when i switch back to left...it reads normal...which is empty at the moment. what would cause this?
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#2 |
Senior Member
Join Date: Mar 2003
Location: St robert Mo
Posts: 2,001
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Bad ground would be my guess
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1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO |
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#3 |
Registered User
Join Date: Oct 2002
Location: NJ
Posts: 404
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check your connections on top of the sender of the tank. theres one you can see right through the bed/cab space that is what makes the one in my truck go nutty. I used a little foil on my truck and it worked out well
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so many trucks so little time!!! |
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#4 |
Gentleman Jim Driver
Join Date: Nov 2002
Location: Poulsbo, WA
Posts: 1,550
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When you open circuit the gage sending wire, it will peg past full. I would bet on the ground on that right tank too.
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Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed |
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#5 |
Registered User
Join Date: Jan 2004
Location: Oklahoma
Posts: 1,057
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With the current gas prices I haven't seen my guage past full in over a month... MY truck was doing hte same thing. I traced the wire that goes to the sendng unit and it was cut into by the edge of the firewall. It looked like it had been cut for years.
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Youth soon passes away, but immaturity can last a life time. |
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#6 |
Stepsides RULE
Join Date: Jul 2004
Location: Pineville, LA
Posts: 1,921
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When its fixed, it should still go a little past full and empty, or at least mine does
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1981 Chevy C10 Custom Deluxe Stepside 350 V8, headers, side exhausts, 3-speed auto SOLD 1980 Chevy C10 Custum Deluxe Stepside 305 V8, Edelbrock Performer Intake, Edelbrock 1406 600CFM 4-barrel, TH350C. Bent rod. SOLD 1984 GMC Sierra Classic Longbed 6.2L Diesel SOLD 2009 Kawasaki KLX-250S too many mods for this signature 1999 Honda Accord EX 4-cylinder, 17" Motegi Wheels 215/45/17 Sumitomo tires, Tein S-Tech lowering springs, KYB GR2 shocks, Acura TL 20mm rear swaybar, debadged, blackhoused headlights, Short-Ram Intake Cardomain of the Accord |
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#7 |
Registered User
Join Date: Apr 2003
Location: Garland, Texas
Posts: 1,127
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i'll check that in the morning....thanks guys!
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#8 |
Registered User
Join Date: Mar 2004
Location: Beautiful North Idaho
Posts: 33
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Ahh yes, But........
Does anybody happen to know what color the ground lead is?
BOTH the tanks on my '82 K30 never leave the 3'oclock position and I havn't had a chance to crawl around in the mud underneath it yet. Thanks! Scott |
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#9 |
Gentleman Jim Driver
Join Date: Nov 2002
Location: Poulsbo, WA
Posts: 1,550
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The grounds are black and terminate on the frame rail close to the tank senders. They are held by a bolt with a star washer on it.
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#10 |
Registered User
Join Date: Apr 2003
Location: Garland, Texas
Posts: 1,127
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ground was good, my gauge works, just reads past full when filled up...like at the 3 oclock position, but reads empty when empty...i think...haven't gotten that far yet, but it read empty before i filled up and i put in about 19 gallons
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