Question about 1999 Chevrolet Silverado 1500

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I need to know how to rewire my wires going to my gas tank. My fuel gauge doesn't read right. When i fill it up it only goes to a quarter.

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Most lickly the sender itself is bad this very common on your model truck. does the low fuel light come on even when its full at every stop then read ok once you start moving again?

Posted on Jun 04, 2009

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How do i know i have a bad float in dual tanks?


Of readings are inconsistent with known fuel levels, Ground (or connect to a tester light) the sender unit wire and watch if the gauge rises.

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On a 1972 Chevy K5 Blazer, the tan wire from the gas sending goes to the back of the fuel gauge I understand. Where on the back of the fuel guage exactly does it go? Does any wire go to fuse block? W


Power should goto the gauge, second wire from the gauge goes to the sender unit on the tank. If there's any other terminals on the gauge or the tank they will be grounds

Apr 23, 2017 | Cars & Trucks

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Gas hand reads full all the time


Fuel gauge may be the problem, but may also be a short in wires going to fuel gauge
Battery power goes to gauge in dash then to resistor in tank to ground. If the wire going to tank is shorted to frame it will always read full. Test this by disconnecting the wire going to the tank. If it goes to empty then you know the reason, either resistor in tank is bad or wire shorted.
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Jus bought a 91 izusu pick up... gas gauge doesnt work.. wat do i gota do to fix this??


Talking about fuel gauge issues and how do you how do you diagnose, ... is the dash unit right here, and obviously the gauge doesn't read correctly. ... to fix the fuel gauge, so you can actually fix the fuel gauge electronically by reflashing the program. ... How to Troubleshoot a Malibu Fuel Gauge & Dash Light Not Working ...Could be a bad fuse - fuse # 17 is a 15 amp fuse for the fuel gaugeCould be a bad float on the fuel gauge sending unit inside the gas tank ( it's with your electric fuel pump ) If the float gets a pinhole or crack in it , the float fills with gas and sinks so the gas guage reads empty all the time Could be a wiring problem

Oct 15, 2011 | 1991 Isuzu Pickup

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I have a 1997 chevy blazer and the check engine light will not go out the gas gauge stop working and It's not getting enough gas to the carbeurater sprayed starter fluid and it starts up the high beam...


if the check engine light is on then there is a code set in the ecm(computer) that you need to have pulled and diagnoised.if your spraying starter fluid and it starts then you have a fuel delivery problem,could it be out of gas,plugged fuel filter,bad fuel pump,injectors not being comanded to open by the ecm.this should help to get it running,

Sep 18, 2011 | 1997 Chevrolet Blazer

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I have a 2003 crown victoria cvpi the fuel gage is not working, i belive that if i knew the color of the positive wire going to /from gas tank i could rewire or repair the fuel gauge problem the car was...


These should be the colors coming out of the plug on the fuel pump.

(GY/RD)signal return
(RD/PK)Fuel tank pressure transducer sensor
(BN/WH)Reference voltage
(YE/WH)Fuel pump/fuel gauge sender
(BN/WH)Fuel pump Power, return
(PK/BK)Fuel pump Power, feed
(PK/OG)Ground

I hope this helps you out.

Mar 14, 2011 | 2003 Ford Crown Victoria

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Fuel gauge alwaya read full


The wire between the dash and the fuel tank is connected to ground somewhere. there is a control that fails too but if the control failed the temperture gauge also won't work. The wire can get in troble inside the tank too as if someone tried to steal the gas with a hose. if you can disconnect the connector ( wireing ) at the fuel tank and turn the key on and the gauge goes to empty you know the troble is inside the tank and the pump sender unit will need to be removed from the tank to correct the problem or even the gauge unit replaced.70198425.jpg

Feb 28, 2011 | 1995 Ford Explorer

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1999 Monte Carlo fuel gauge stopped working


Hi there. If the fuel gauge is the only one acting up, its probably a loose or corroded wire on top of the gas tank where the fuel pump sets in. It could also be a loose wire on the back of the gauge, which is easier to get to so you could always check that first by popping off the dash pannel and pulling out the instrument cluster and looking for a broke wire on the back of the fuel gauge. But if I had to bet I would guess its on the other end by the fuel pump. Worse case sinario, maybe a bad sending unit.

Mar 14, 2009 | 1999 Chevrolet Monte Carlo

2 Answers

I have a 94 chevy s10 and my gas reads empty while i drive.but when i shut off the truck the gauge moves to different readings.


Is......the problem--"the gas gage reads empty when there is fuel in the tank. OR, The gage moves when the key to turned off ?

If it's the first,
You will need to test the gage and through process of elimination, determin if the Sending unit inside the fuel tank has gone Bad.

If its the second ? - Electrical gauges will move when powered down. Normal

Testing the gauge may not be easy - just depends on your ability.
It is a simple 2-wire gauge circuit, when disconnect (usually need the fuel tank) the gage reads in one direction (either full or empty)
then when shorted-the gage reads in oppisite direction.

Of course you must select the correct wires or you may short out the wrong circuits!! Most GM vehicles use a purple wire & black wire.

A quick method I have used to check the in-take part of the gauge is this.
1st. know there is gas - 1/2 tank works best.
2nd driver's door open, key in run position, engine not running.
3rd gently lift up on the door then let if come back down, gently.
just enough to cause the gas to slosh around.
4th - keep an eye on the gas gage, a bad sending unit in the take will show up as a "twitchy" needle.

Of course, if the gage never leaves empty - sloshing won't work.
I have a known good sending unit I can plug into the vehicle and simulate different levels of fuel - if the gas gage works, I know the problem is in the tank.

Let us know.

Dave

Feb 28, 2009 | 1996 GMC Sonoma

1 Answer

Fuel gauge is not reading


to the right , i am assuming to the "full tank" reading. am i right?

if i am right, the wire from the gas tank is sending a full tank signal what ever the content of the tank.

meaning the wire is shorted to ground.
or the sending unit is faulty. there is a short to ground reading between the sending unit.

you can test which one is faulty. remove the wire from the sending unit. observe the gauge. if the gauge would go to " empty" then the culprit is the sending unit. if it stays on " full tank", then the wire is faulty.

WARNING: GASOLINE IS EXTREMELY FLAMMABLE. BE VERY CAREFUL IN HANDLING NEAR THEM.


tnx 4 using fixya,

drcool

Sep 23, 2008 | 1997 GMC Sonoma

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