Question about 2004 Chrysler Pacifica

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2004 Chrysler Pacifica Fluctuating Fuel Gauge Indicator

2004 Chrysler Pacifica has intermittment issue with flucuating fuel gauge level indicator and empty signal turning on even though fuel levels are 1/2 tank or more. Hesitation occurs during operation when this happens. Do you think it is a sensor or fuel filter? R perhaps another issue?

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  • Anonymous Mar 13, 2014

    my chrysler pacifica starts of than chokes and shut off could it be my fuel filter is clogg?

  • Anonymous Mar 23, 2014

    fuel gauge and pump

  • Anonymous Mar 23, 2014

    fuel gauge not working properly on my 2007 pacifica

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Hello, the answer to solve this problem is to take it to your nearest chrysler dealer and have them re-flash the updates to the ecu....since 2004, chrysler has had about 4-5 new updates since the date they were manufactured....you need to have the update that followed from your date of man. on your vehicle....They attempted to flash mine to the latest update and didnt work, turns out that they need the re-flash from back when...in order to get the gauage to stop fluctuating.....Hope this helps!!

Posted on Sep 21, 2009

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Posted on Jan 02, 2017

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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

1 Answer

Fuel guage does not work


The most common cause of an inop fuel gauge is the fuel level sender inside the gas tank is defective, this causes the gauge to read empty or just move a little when filled in some cases depending on where the break in the resistor that the float moves is located.

Oct 25, 2012 | 2007 Chrysler Pacifica FWD New Cars

1 Answer

The malfuction light indicator came on along with the fuel light and the gas gauge went to empty. I went to the mechanic and was told the fuel pump needed replacement. It was replaced, now a week later the...


If the car is running fine, then that is a possibility. The mechanic should have cleared the code. If you ever have an issue that triggers the ECU, then that is stored in the memory, and will need to be cleared.

Mar 09, 2011 | 2004 Chrysler Pacifica

1 Answer

2007 Chrysler Pacifica having intermittent fuel gauge problems. Goes from normal to dead/ low fuel. Has full tank. Also, check engine light is on.


2007 Chrysler Pacifica having intermittent fuel gauge problems. Goes from normal to dead/ low fuel. Has full tank. Also, check engine light is on

Oct 29, 2010 | 2006 Chrysler Pacifica

3 Answers

Fuel gauge stops working at half empty and will not let you fill up gas tank at full outlet speed from gas pump


you have 2 recalls
pcm update fuel pump replacement
fuel pump module replacement and pcm software

May 05, 2010 | 2006 Chrysler Pacifica

5 Answers

The fuel guage on my 2004 Chrysler Pacifica jumps around


This is a simple service fix. It's a glitch in the computer system. Take it to the dealer and there is some sort of code they can enter to "update" the car's computer.
Mine does it occasionaly, it annoying, but not harmful.
I've heard of some that will act up for a while, then stop, while others, have acted up and them the fuel gauge stays on empty.
Talk to the dealer.

May 05, 2010 | 2004 Chrysler Pacifica

2 Answers

After filling my fuel tank, gauge does not go to full....it takes a few days or hours for gauge to read full


There is a TSB on high sulfur fuel usage, and how it impacts the fuel level resistance.
If you change fuel, it might start working again. The TSB is : ERRATIC FUEL GAUGE OPERATION TSB 08-2-9

Publication Date: January 22, 2008
FORD: 2004-2008 F-150
LINCOLN: 2006-2008 Mark LT


ISSUE:
Some 2004-2008 F-150 and 2006-2008 Mark LT vehicles, built before 12/3/2007, may exhibit erratic fuel gauge operation or illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0460 or P0463, and/or Instrument Cluster Module DTC B1201. This may be caused by sulfur contamination in the fuel causing an open or high resistance in the fuel level sender.

ACTION:
Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

Install a new fuel level sender following the service procedure instruction sheet provided in the fuel sender kit.

PART NUMBER PART NAME
8L3Z-9A213-E Kit - Fuel Sender (2006 starting 12/8/2005 through 2008 - FFV-26 Gal Tank - 126/132" WB )
8L3Z-9A213-F Kit - Fuel Sender (2006 starting 12/8/2005 through 2008 - FFV-30 Gal Tank - 139" WB)
8L3Z-9A213-G Kit - Fuel Sender (2006 starting 12/8/2005 through 2008 - FFV-27 Gal Tank - 145/151/163" WB
8L3Z-9A213-H Kit - Fuel Sender (2006 starting 12/8/2005 through 2008 - FFV-36 Gal Tank - 145/151/163" WB
8L3Z-9A213-A Kit - Fuel Sender (2004 through 2008 - Gas-26 Gal Tank - 126/132" WB
8L3Z-9A213-B Kit - Fuel Sender (2004 through 2008 - Gas-30 Gal Tank - 139" WB
8L3Z-9A213-C Kit - Fuel Sender (2004 through 2008 - Gas-27 Gal Tank - 145/151/163" WB
8L3Z-9A213-D Kit - Fuel Sender (2004 through 2008 - Gas-36 Gal Tank - 145/151/163"WB



WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.

OPERATION DESCRIPTION TIME
080209A 2004-2008 F-150, 2006-2008 Mark LT: Install New Fuel Level Sender, Includes Time To Remove And Install Fuel Tank (Do Not Use With 9002A, 9002A4, 9002A6) 1.9 Hrs.

DEALER CODING
BASIC PART NO. CONDITION CODE
9A299 42

Apr 20, 2010 | 2006 Ford F-150

1 Answer

ANYONE KNOW WHAT WOULD CAUSE THE FUEL GAUGE IN MY 2001 CHRYLSER SEBRING TO BOUNCE FROM FULL TO EMPTY AND DING THE LOW FUEL LIGHT ON AND OFF? IT JUST KEEPS DOING IT WHILE THE CAR IS RUNNING.


  1. Abraded insulation on the fuel gauge sender wire (intermittent short to ground).
  2. Bad fuel level sensor.
  3. Corroded or broken connector in the fuel gauge sender circuit.

Dec 08, 2009 | Chrysler Sebring Cars & Trucks

1 Answer

Fuel indicator


OK, your fuel indicator is wired to a sending unit that is located inside the fuel tank. this assembly is part of the fuel pump assembly. the fuel indicator sending unit is housed in the same assembly as the fuel pump. The fuel indicator will not function properly if there is a bad ground or, if there is a fault within the sending unit. there is a floater device attached on this assembly and, it raises with the fuel level and lowers when the fuel level is low, sending resistance signals to the indicator gauge on your dash board. these signals can be disrupted if the ground is corroded or, if the sending unit is damaged. In most cases, replacing the sending unit will fix this issue. if the fuel indicator is stuck on the full mark, check the ground. if the fuel gauge is laying on empty all the time, replace the sending unit.

Jun 10, 2009 | 1996 Toyota Camry

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