Question about 2003 GMC Savana

1 Answer

Gas gauge indicate empty when full - 2003 GMC Savana

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 84 Answers

Check the fuses and relay......these are the most common problems


1. Defective Dash Voltage regulator (Voltage limiter) or gauge
"make sure the gauge is actually receiving current"
2. Lost of a ground at the sending unit
"make sure it is grounded"
3. Break in the wire going to the dash
"chek it"
4. On some Chryslers, the Bulkhead connector on the firewall or connector behind kick panel.
Less Common
1. Actual bad Sending Unit
"it could be the filter"
2. Fuel Gauge defective
"in some causes, nothing is perfect, or premature wear or just ussual wear"

Posted on May 13, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Fuel indication does not work


Look for the obvious first - is there a fuse on that gauge ? Is the wiring ok between the gauge and the sender? Is the sender working at all - the latter is nothing more than a variable resistor connected to an arm with a float. Find out what the reading should be for the gauge with a full tank. If you measure and it is no where near that then the gauge itself is at fault.

Sep 07, 2015 | 2012 Ford E-350 Super Duty XLT

2 Answers

Gas gauge indicator goes to empty when full


sounds like you may have a bad fuel level sender problem. as for the check engine light coming on and storing a fault code that is a separate issue.

Aug 29, 2014 | 2005 Chevrolet Malibu

1 Answer

1989 silverado gas gauge shows full even when cluster removed from dash.


The sending unit in the tank provides a ground to the gauge depending on the float level. The gauge can "rest" anywhere if the power and ground circuits are not connected.
You would need to know if the gauge has power and is getting a ground signal from the tank.

Jun 02, 2013 | Chevrolet Cars & Trucks

1 Answer

The gas gauge for the front tank on my 1992 F150 is stuck past full


You probably have a ground wire not making contact to ground on the front tank sending unit. OR the sending unit itself inside the tank is faulty. Either way, when a gas guage goes to full all the time (empty or full), this indicates that NO ground is available for the sending unit.

Apr 02, 2013 | 1992 Ford F150 SuperCab

1 Answer

I have a 1992 Mercury Grand Marquis Ls with a fuel gauge that does not work (gauge may be reversed)??? help please.


The fuel level indicating system is a magnetic type system, which consists of the sending unit located in the fuel tank, an anti-slosh module located on the back of the instrument cluster, and a fuel gauge located in the instrument cluster. The sending unit changes resistance according to the level of fuel in the fuel tank, which varies the current flow through the gauge.The pointer position varies proportionately to the current flow. In this system, the sending unit resistance is low (22 ohms) when the fuel level is low and high( 145 ohms) when the fuel level is high. The pointer of the magnetic gauge remains in position when the ignition is turned to the Off position. On some models, an anti-slosh module is used to dampen out fluctuating fuel signals from the sender. Some vehicles are equipped with a low fuel warning indicator. The anti-slosh module will also actuate the low fuel indicator when the fuel level in the tank reaches 1/16 to 1/8 full.


Do your other gauges/warning indicators work properly with the ignition on? If not, check for power at the fuse panel/fuses.

If they do then partially remove your cluster with connector still installed and check for voltage at cluster connector and gauge. Check continuity of cluster and gauge for ground.

Sometimes the anti-slosh module (if installed) goes bad in the Grand Marquis but not likely.

Sender troubleshooting:
  1. Perform test with resistors as follows:
    1. Disconnect wiring connector at sender unit, then connect resistor between gauge lead and a suitable ground.
    2. Turn ignition switch to On position.
    3. With 145 ohm resistor, the gauge pointer should contact the Full mark.
    4. With 22 ohm resistor, the gauge pointer should contact the Empty mark.
  1. Perform test with fuel sender of known quality as follows:
    1. Turn ignition to Off position.
    2. Disconnect wiring connector from sender and connect it to test sender.
    3. Move float rod away from fuel filter against Full stop position. Wait approximately 30 seconds, then turn ignition switch to On position. The gauge should read on or above the Full mark.
    4. Move float rod toward fuel filter against Empty stop position. Turn ignition switch to Off position. Wait approximately 30 seconds, then turn ignition switch to On position. The gauge should read on or below the Empty mark. If gauge works properly replace sender, which involves dropping fuel tank.

Mar 23, 2013 | 1992 Mercury Grand Marquis

2 Answers

I have a 2003 GMC Envoy and my gas gauge has been flowing up and down to empty and full recently it has stayed on empty. How do I fix it?


Ensure that all of the wire connections are clean, secure and corrosion-free.

  • 2 Check your fuel gauge fuse if the gauge's indicator stays on empty when your turn on the ignition. If the fuse is good, join the sending unit connector to ground. Replace the sending unit if the gauge indictor moves to the full line.
  • 3 Ground the terminal located on the back of the fuel gauge with a jumper wire if the indicator doesn't move. If it does move, consider replacing the wire between the fuel gauge and the sending unit. A poor ground is frequently responsible for fuel gauge problems.
  • 4 Release the wire that connects to the fuel tank's sending unit. Confirm that there's no worn insulation that would permit wire contact to the body or frame. A fuel gauge reading of full generally indicates a problem with the tank unit, not the wiring.
  • Oct 18, 2011 | 2003 GMC Envoy

    1 Answer

    The gas gauge says full when you start the engine and the electric range says 446 miles to empty then it will all drop to empty and the gas light will come on, so i never know for sure how much gas I have.


    Sending unit gas gauge in the gas tank has gone bad and will need to be replaced. The gas gauge wire is grounding out causing you to have full full indicated and when there is no ground you get empty signal.

    This is caused by the gauge in the tank having a bad spot on the float, which is common from wear and tear. Also if your lucky, it may just be the wire harness from the gas tank to the frame might be the issue and will need to be replaced. It worst, it's going to be the sending unit it self.

    Thank you for using fixya and good luck

    Oct 11, 2010 | 1999 Oldsmobile Silhouette

    1 Answer

    Fuel Gauge


    replace the sending unit it will leave you stuck when not ready for it please carry small can of gas until replaced sending unit good luck

    Jun 28, 2008 | 2000 Chevrolet Venture

    Not finding what you are looking for?
    2003 GMC Savana Logo

    Related Topics:

    234 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top GMC Experts

    yadayada
    yadayada

    Level 3 Expert

    75005 Answers

    Freddy

    Level 3 Expert

    1311 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22095 Answers

    Are you a GMC Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides

    Loading...