Fuel gauge still don't work after fix a guage resistor - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jsbgump · 05-04-2006, 08:51 PM

I am lost. What else can i do I am fed up with this stupid gauge. Help!!!!!!!!!! If I remove the wire from the fuse block or the sending unit it goes past full. Any one have any ideas?

byrd · 05-04-2006, 09:18 PM

What does it do when you turn the key on? Does it go to past empty when grounded out?

jsbgump · 05-04-2006, 09:50 PM

it stays at about an 1/8th when key is on. I'll try addind a ground to the sender and see.

Brainchild · 05-04-2006, 10:10 PM

Sounds like the sender is bad.

You can pull the sender out,adn take it apart,and clean the inside with a piece of sandpaper 400-600 grit,and sometimes it'll work.Mine did.

cstanley · 05-05-2006, 12:07 AM

had the same problem. just replaced my sender. it was the culprit. wish i had known that 9 years ago when the gauge stopped working!! it was cake, took about 5 min (not counting seat removal.)

junkyardjohn · 05-05-2006, 12:25 AM

Quote:

Originally Posted by jsbgump

I am lost. What else can i do I am fed up with this stupid gauge. Help!!!!!!!!!! If I remove the wire from the fuse block or the sending unit it goes past full. Any one have any ideas?

I'M PRETTY SURE I HAVE AN EXTRA FUEL GAGE AROUND HERE THAT I'LL SEND YOU FOR POSTAGE, IF YOU WANT TO RULE OUT THE GAGE.

JOHN

BowTieMan · 05-05-2006, 12:55 AM

How much does a new sending unit cost?

jsbgump · 05-05-2006, 01:04 AM

I have a couple layin around here and allready ruled that out

Quote:

Originally Posted by junkyardjohn

I'M PRETTY SURE I HAVE AN EXTRA FUEL GAGE AROUND HERE THAT I'LL SEND YOU FOR POSTAGE, IF YOU WANT TO RULE OUT THE GAGE.

JOHN

67ChevyRedneck · 05-05-2006, 08:58 AM

If it goes past full when you unhook it and then to 1/8 of a tank when its plugged back in, then the gage is working and the unit is grounded. Pull your sending unit and you may find that your float has a hole in it and is basically staying in the same place. Or the little box looking thingy is bad.

The other thing you might want to try is putting more than 1/8 tank of fuel in the truck

Sorry, couldn't resist

70c10 · 05-05-2006, 09:05 AM

I would check the float. Takes a few minutes.

cstanley · 05-05-2006, 11:10 AM

i think my sending unit and parts were about $50 from gmcpauls. ordered as stated below...
(CP 72-9300-A) In Cab Fuel Sending Unit6772 - 72 Auto Trans. V8 or 6cyl
($42.95) X 1 = $42.95
Fuel Sender Lock Ring 67-72 ($4.95) X 1 = $4.95
(CP-67-9305) Fuel Sender O-Ring 67-72 ($2.95) X 1 = $2.95

jsbgump · 05-05-2006, 01:03 PM

Well it is the sending unit I have the one for the poly blazer tank conversion and used it to test and it worked with it so the sending unit is bad. I guess I need to get the blazer tank in and run a filler.

roughedup72 · 05-05-2006, 10:04 PM

I had a similar problem when I had my tank repaired, When I put the sendeing unit back in the float fell off inside the tank. I was a B*&&&^ to get out.ordered a new sending unit from chevy duty, Oh I forgot, That place that used to be chevy duty.pretty good price and it came with the gasket,no mo problems.

Brainchild · 05-05-2006, 10:33 PM

Like I said,I fixed mine with a piece of sandpaper.Just pulled it out,and pulled the box apart,cleaned the contacts,and put it back together.Worked fine for nearly 2 years now.

05-04-2006, 08:51 PM	#1
jsbgump Gone Fishing Join Date: Aug 2005 Location: Fort Worth, Texas 76135 Posts: 12,361	Fuel gauge still don't work after fix a guage resistor I am lost. What else can i do I am fed up with this stupid gauge. Help!!!!!!!!!! If I remove the wire from the fuse block or the sending unit it goes past full. Any one have any ideas? __________________ 68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop Frame of resto has been started 2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616

05-04-2006, 09:50 PM	#3
jsbgump Gone Fishing Join Date: Aug 2005 Location: Fort Worth, Texas 76135 Posts: 12,361	Re: Fuel gauge still don't work after fix a guage resistor it stays at about an 1/8th when key is on. I'll try addind a ground to the sender and see. __________________ 68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop Frame of resto has been started 2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616

05-04-2006, 10:10 PM	#4
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	Re: Fuel gauge still don't work after fix a guage resistor Sounds like the sender is bad. You can pull the sender out,adn take it apart,and clean the inside with a piece of sandpaper 400-600 grit,and sometimes it'll work.Mine did. __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

05-05-2006, 12:07 AM	#5
cstanley Senior Member Join Date: Oct 2005 Location: Austin, TX Posts: 1,229	Re: Fuel gauge still don't work after fix a guage resistor had the same problem. just replaced my sender. it was the culprit. wish i had known that 9 years ago when the gauge stopped working!! it was cake, took about 5 min (not counting seat removal.) __________________ "Anybody who would paint his truck like this, would go to a minister's funeral dressed in feathers!" - Big Enis Burdett '72 Blazer Restoration Blog: http://sportchicken.blogspot.com/

05-05-2006, 12:55 AM	#7
BowTieMan Registered User Join Date: Dec 2003 Location: Glendale Arizona Posts: 747	Re: Fuel gauge still don't work after fix a guage resistor How much does a new sending unit cost? __________________ "A true hotrodder wouldn't be content untill he had created a car so violent, so hairy, so totally sick that the very act of dropping the hammer would result in instant death. Anything less results in the need to go faster." - Tony DeFeo

05-05-2006, 08:58 AM	#9
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Fuel gauge still don't work after fix a guage resistor If it goes past full when you unhook it and then to 1/8 of a tank when its plugged back in, then the gage is working and the unit is grounded. Pull your sending unit and you may find that your float has a hole in it and is basically staying in the same place. Or the little box looking thingy is bad. The other thing you might want to try is putting more than 1/8 tank of fuel in the truck Sorry, couldn't resist __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 05-05-2006 at 09:00 AM.

05-05-2006, 09:05 AM	#10
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,856	Re: Fuel gauge still don't work after fix a guage resistor I would check the float. Takes a few minutes. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

05-05-2006, 11:10 AM	#11
cstanley Senior Member Join Date: Oct 2005 Location: Austin, TX Posts: 1,229	Re: Fuel gauge still don't work after fix a guage resistor i think my sending unit and parts were about $50 from gmcpauls. ordered as stated below... (CP 72-9300-A) In Cab Fuel Sending Unit6772 - 72 Auto Trans. V8 or 6cyl ($42.95) X 1 = $42.95 Fuel Sender Lock Ring 67-72 ($4.95) X 1 = $4.95 (CP-67-9305) Fuel Sender O-Ring 67-72 ($2.95) X 1 = $2.95 __________________ "Anybody who would paint his truck like this, would go to a minister's funeral dressed in feathers!" - Big Enis Burdett '72 Blazer Restoration Blog: http://sportchicken.blogspot.com/

05-05-2006, 01:03 PM	#12
jsbgump Gone Fishing Join Date: Aug 2005 Location: Fort Worth, Texas 76135 Posts: 12,361	Re: Fuel gauge still don't work after fix a guage resistor Well it is the sending unit I have the one for the poly blazer tank conversion and used it to test and it worked with it so the sending unit is bad. I guess I need to get the blazer tank in and run a filler. __________________ 68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop Frame of resto has been started 2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616

05-05-2006, 10:04 PM	#13
roughedup72 Senior Member Join Date: Oct 2005 Location: south carolina Posts: 658	Re: Fuel gauge still don't work after fix a guage resistor I had a similar problem when I had my tank repaired, When I put the sendeing unit back in the float fell off inside the tank. I was a B*&&&^ to get out.ordered a new sending unit from chevy duty, Oh I forgot, That place that used to be chevy duty.pretty good price and it came with the gasket,no mo problems. __________________ 1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod.

05-05-2006, 10:33 PM	#14
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	Re: Fuel gauge still don't work after fix a guage resistor Like I said,I fixed mine with a piece of sandpaper.Just pulled it out,and pulled the box apart,cleaned the contacts,and put it back together.Worked fine for nearly 2 years now. __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website



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