Question about 1998 Dodge Ram 1500 4WD

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I just replaced the fuel pump module assembly in the top of tank and have verified adequete fuel to the fuel rail but still no gas to the engine to crank it. if i manually pour fuel into the throttle body it will crank immediately

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  • mtidwell79 May 10, 2010

    The new fuel pump module assembly for Dodge is an all-inclusive 1 piece unit that contains a fuel pressure regulator on the top of the assembly.

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  • 395 Answers

Change the fuel pressure regulator.

Posted on May 09, 2010

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I have 2008 GMC sierra 5.3 L with a new fuel pump. And no power to the pump. Any ideas where to look?


Fuel Pump Flow Control Module (FPCM) - LMF
The fuel pump flow control module (FPCM) is a serviceable GMLAN module. The FPCM receives the desired fuel pressure message from the engine control module (ECM) and controls the fuel pump located within the fuel tank to achieve the desired fuel pressure. The FPCM sends a 25 KHZ PWM signal to the fuel pump, and pump speed is changed by varying the duty cycle of this signal. Maximum current supplied to the fuel pump is 15 amps. A liquid fuel pressure sensor provides fuel pressure feedback to the FPCM.
Electronic Returnless Fuel System (ERFS) - LMF
The electronic returnless fuel system is a microprocessor controlled fuel delivery system which transports fuel from the tank to the fuel rails. It functions as an electronic replacement for a traditional, mechanical fuel pressure regulator. A pressure vent valve within the fuel tank provides an added measure of fuel pump flow control module (FPCM). Desired fuel pressure is commanded by the engine control module (ECM), and transmitted to the FPCM via a GMLAN serial data message. A liquid fuel pressure sensor provides the feedback the FPCM requires for Closed Loop fuel pressure control.

Fuel Pump Flow Control Module (Gas except LU3/LMG/LY6/LC9)
Mounted to the rear frame, near the spare tire mount
Wheels/Vehicle Underbody Component Views
Component Connector End Views
Fuel Pump Relay - Secondary (Gas with LY6)
On the fuse block - underhood bracket

DTC P0191: Fuel Rail Pressure (FRP) Sensor Performance
DTC P0192: Fuel Rail Pressure (FRP) Sensor Circuit Low Voltage
DTC P0193: Fuel Rail Pressure (FRP) Sensor Circuit High Voltage
DTC P0230: Fuel Pump Relay Control Circuit
The engine control module (ECM) sends the fuel enable signal to the fuel pump control module (FPCM). The control module monitors the voltage on the fuel pump relay control circuit. If the control module detects an incorrect voltage on the fuel pump relay control circuit, a fuel pump relay control DTC sets.
The control module monitors the voltage on the fuel pump relay control circuit. If the control module detects an incorrect voltage on the fuel pump relay control circuit, a fuel pump relay control DTC sets.
DTC P0231: Fuel Pump Control Circuit Low Voltage
DTC P0232: Fuel Pump Control Circuit High Voltage
DTC P023F: Fuel Pump Control Circuit
DTC P025A: Fuel Pump Control Module Enable Circuit

Your best bet , take it to a qualified repair shop , dealer .

Mar 25, 2017 | GMC Cars & Trucks

1 Answer

Do my 2008 malibu lt 2.4 has a fuel filter.


The fuel pump is 8 or 9 years old now, and that's about the average life span of those pumps. Just by turning the key to on should cause the fuel pump to turn on for 2 seconds. This is to prime the fuel lines and the engine with gas, so it will be easy to start. Do you hear the pump buzz on for that 2 seconds when key is turned to on, not start? If you don't hear it, then probably a failed pump, but of course you can't rule out the possibility it is a fault in the pump circuit. That is why mechanics will test the pump or at least the wiring to the pump before condemning the pump and having to remove the old one. Yours should be fairly easy to access through an access panel in the trunk, or under the rear seat. You get access to the top of the fuel tank, where you can remove the pump module assembly. And that is what you replace, is the module assembly.
The filter would be found underneath the car. Just follow the fuel lines from the tank towards the engine. One is the feed line, the other is the return line from the engine to the tank. The fuel filter will be in the feed line, the pressure line from the pump in the tank to the fuel rail on the engine. The filter is on this line.

Dec 24, 2016 | Cars & Trucks

1 Answer

Im searching for the location of my fuel filter


searching why, (buy an FSM and no more guessing...? )
basic service?
low fuel pressure? why?

ive got near a 1/2 million + miles on jeeps since 1988.
never stranded, but i do my service,.
my last chick-o-dee. was 99. with 5sp, all with that.
my 08 JK same.
the fuel filters on old loop systems is in the front of the tank
then later, , EPA forced most parts into tank with the new loop
or dead head systems. (EPA wants fuel cold .so, that is it)
i dont find parts hard to find, jeeps excel at that. vast resources.
nor hard electrical if you had a 2007+ then that be different.

id just crawl under car and gander, at fuel line but here we go
ill do it , online for you.
4Liter 98
options , with the 20gallon tank there is filter. on top of pump , in tank.
that means to me there are different filters there. by size tank .
if you dont see a filter, that means its in the tank.
at
http://www.factorychryslerparts.com/productSearch.aspx?&ukey_make=1064&modelYear=1998&ukey_model=15525&ukey_trimLevel=0&ukey_driveline=0&ukey_Category=0&numResults=50&sortOrder=Relevance&isOnSale=0&isAccessory=0&isPerformance=0&searchTerm=

so

ill paste the FSM page on this topic

he fuel filter is an integral component of the fuel pressure regulator, which is mounted on top of the fuel pump module, located in the fuel tank. When the fuel filter/regulator assembly requires service, the fuel tank must be removed from the vehicle, however, the fuel pump module does not need to be removed.
  1. Disconnect the battery ground cable.
  2. Relieve the fuel system pressure. Refer to Section 5 for the proper procedure.
  3. Remove the fuel tank assembly.
  4. Clean the area around the fuel filter/regulator.
  5. Disengage the retaining clamp from the top of the filter/regulator assembly. Discard the retaining clamp.
  6. Using 2 small prying tools, pry the filter/regulator assembly out from the top of the fuel pump module. The filter/regulator assembly will unsnap from the fuel pump module.
  7. Remove and discard the mounting gasket below the filter/regulator.
  8. Before discarding the fuel filter/pressure regulator assembly, inspect the assembly to verify that the O-rings are intact. If the smallest of the 2 O-rings cannot be found on the bottom of the filter/regulator, it may be necessary to remove it from the fuel inlet passage in the fuel pump module.
  9. Clean the recessed area in the pump module where the filter/regulator assembly is to be installed.
  10. Check the replacement filter/regulator assembly to make sure that the new O-rings are already installed on the assembly.
  11. Apply a small amount of clean engine oil to the O-rings.
  12. Install a new gasket on top of the fuel pump module.
  13. Press the new fuel filter/pressure regulator assembly into the top of the fuel pump module until it snaps into position (a positive click must be heard or felt).
  14. The arrow on top of the fuel pump module should be pointed towards the front of the vehicle (12 O'clock position).
  15. Turn the filter/regulator assembly until the supply tube (fitting) is pointed to the 11 O'clock position.
  16. Install new retainer clamp (the clamp snaps over the top of the filter/regulator and locks to the flanges on the pump module).
  17. Install the fuel tank assembly.
  18. Connect the negative battery cable.
  19. end

how is that ?

Mar 21, 2014 | 1998 Jeep Grand Cherokee

2 Answers

How do i replace fuel pump on a 2006 CTS Cadlly


You must remove the fuel tank from the vehicle to get to the fuel tank module. Your vehicle is equipped with two fuel tank modules that are connected by a tube inside the fuel tank. The primary module is the one on the left side and it is the one that contains the fuel pump.

Have you scanned your computer system to verify that there is not a problem with the security system or the fuel pump circuits? Did you actually check for fuel pressure at the fuel rail? I'm only asking because dropping a fuel tank and replacing a fuel tank module is not easy or cheap....A BIG investment if you are not absolutely certain that this will fix your problem.

Nov 14, 2011 | 2006 Cadillac CTS

3 Answers

My sons 2000 s10 truck stopped working on his way home from school he thought he ran out of gas so he put two gallons of gas in it turns over but will not start engine is 2.2 could it be the fuel pump


Once the fuel tank was empty the fuel line has got air locked and so the fuel pump will neot work unless the air is bled out of the system.
So open the cap to the fuel tank and using the palm of your hand to cover the mouth of the fuel tank try to blown to pressurize the tank.
if this wont work the fuel line to the pump must be opened and the fuel bled out.
Now the fuel will flow to the pump and start the engine.
Never run the tank dry.

Feb 15, 2011 | 2000 Chevrolet S-10

1 Answer

How would I replace my fuel Filter


The fuel filter is an integral component of the fuel pressure regulator, which is mounted on top of the fuel pump module, located in the fuel tank. When the fuel filter/regulator assembly requires service, the fuel tank must be removed from the vehicle, however, the fuel pump module does not need to be removed.
  1. Disconnect the battery ground cable.
  2. You dont have to relieve your fuel systems pressure because your jeep has an automatic bleeder.
  3. Remove the fuel tank assembly.
  4. Clean the area around the fuel filter/regulator.



0900c152800a96ce.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 5: Remove the fuel filter/pressure regulator retaining clip from the top of the assembly


0900c152800a96cf.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 6: Replace the old fuel filter/pressure regulator mounting gasket

  1. Disengage the retaining clamp from the top of the filter/regulator assembly. Discard the retaining clamp.
  2. Using 2 small prying tools, pry the filter/regulator assembly out from the top of the fuel pump module. The filter/regulator assembly will unsnap from the fuel pump module.
  3. Remove and discard the mounting gasket below the filter/regulator.
  4. Before discarding the fuel filter/pressure regulator assembly, inspect the assembly to verify that the O-rings are intact. If the smallest of the 2 O-rings cannot be found on the bottom of the filter/regulator, it may be necessary to remove it from the fuel inlet passage in the fuel pump module.

To install:


0900c152800a96d0.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 7: Check the condition of the fuel filter/pressure regulator O-rings

  1. Clean the recessed area in the pump module where the filter/regulator assembly is to be installed.
  2. Check the replacement filter/regulator assembly to make sure that the new O-rings are already installed on the assembly.
  3. Apply a small amount of clean engine oil to the O-rings.
  4. Install a new gasket on top of the fuel pump module.
  5. Press the new fuel filter/pressure regulator assembly into the top of the fuel pump module until it snaps into position (a positive click must be heard or felt).
  6. The arrow on top of the fuel pump module should be pointed towards the front of the vehicle (12 O&rsquoclock position).
  7. Turn the filter/regulator assembly until the supply tube (fitting) is pointed to the 11 O&rsquoclock position.
  8. Install new retainer clamp (the clamp snaps over the top of the filter/regulator and locks to the flanges on the pump module).
  9. Install the fuel tank assembly.
  10. Connect the negative battery cable.

Jan 28, 2011 | 1996 Jeep Grand Cherokee

3 Answers

Where does the fuel filter go on the 1997 jeep


You may have one along frame rail near rear wheel area on drivers side.

Jun 28, 2009 | 1997 Jeep Grand Cherokee

2 Answers

Need directions on replacing 2000 dodge durange 4.7 ltr fuel pump


WHAT YOU WILL NEED TO DO FIRST IS JACK THE TRUCK UP AS HIGH AS SAFELY POSSIBLE.. BE SURE TO USE JACK STANDS THAT WAY THE TRUCK DOENT FALL OVER.. ONCE UP IN THE AIR HE WILL NEED TO TAKE THE GAS TANK OUT OF THE TRUCK.. THERE ARE TWO STRIPS HOLDING THE TANK INTO PLACE..THEN WHEN HE GETS THE TANK ON THE GROUND, REMOVE ALL THE FUEL LINES.(THERE ARE CLIPS ON THE PLASTIC LINES BE EASY) THEN WHEN HE GETS THE LINES LOOSE, THERE IS A METAL RING ON THE TOP ON THE FUEL TANK..HE CAN USE A SCREW DRIVER TO GET THE RING OFF( HE WILL SEE HOW TO TAKE IT OFF WHEN HE LOOKS AT IT) WHEN THE RING IS OFF PULL THE FUEL PUMP ASSEMBLY OUT OF THE TANK AND REPLACE THE FUEL PUMP (THE WHOLE FUEL PUMP WILL JUST NEED PULLED OUT, NO SCREWS) ..JUST REPEAT THESE STEPS BACKWARDS TO REINSTALL .. THIS SHOULD SOLVE YOUR $700 PROBLEM..GOOD LUCK AND THANKS FOR USING FIXYA.COM...KEITH..

Mar 14, 2009 | 2000 Dodge Durango

2 Answers

1999 jeep cherokee do you have to remove the fuel pump to replace


The combination Fuel Filter/Fuel Pressure Regulator is located on the fuel pump module. The fuel pump module is located on top of fuel tank.

The filter/regulator may be removed without removing fuel pump module although fuel tank must be removed.

REMOVAL
  1. Remove fuel tank. Refer to Fuel Tank Removal/Installation.
  2. Clean area around filter/regulator.
  3. Disconnect fuel line at filter/regulator. Refer to Quick-Connect Fittings for procedures.
  4. Remove retainer clamp from top of filter/regulator. Clamp snaps to tabs on pump module. Discard old clamp.
  5. Pry filter/regulator from top of pump module with 2 screwdrivers. Unit is snapped into module
  6. Discard gasket below filter/regulator.
    1. Before discarding filter/regulator assembly, inspect assembly to verify that O-rings are intact. If the smallest of the two O-rings can not be found on bottom of filter/regulator, it may be necessary to remove it from the fuel inlet passage in fuel pump module.
    INSTALLATION
    1. Clean recessed area in pump module where filter/regulator is to be installed.
    2. Obtain new filter/regulator (two new O-rings should already be installed)
    3. Apply a small amount of clean engine oil to O-rings. Do not install O-rings separately into fuel pump module. They will be damaged when installing filter/regulator.
    4. Install new gasket to top of fuel pump module.
    5. Press new filter/regulator into top of pump module until it snaps into position (a positive click must be heard or felt).
    6. The arrow molded into top of fuel pump module should be pointed towards front of vehicle (12 O'clock position).
    7. Rotate filter/regulator until fuel supply tube (fitting) is pointed towards front of vehicle (12 O'clock position).
    8. Install new retainer clamp (clamp snaps over top of filter/regulator and locks to flanges on pump module).
    9. Connect fuel line at filter/regulator. Refer to Quick-Connect Fittings for procedures.
    10. Install fuel tank. Refer to Fuel Tank Removal/Installation.
WARNING: THE FUEL SYSTEM IS UNDER CONSTANT FUEL PRESSURE EVEN WITH THE ENGINE OFF. THIS PRESSURE MUST BE RELEASED BEFORE SERVICING FUEL TANK .

Two different procedures may be used to drain fuel tank (lowering tank or using DRB scan tool).

The quickest draining procedure involves lowering the fuel tank.

As an alternative procedure, the electric fuel pump may be activated allowing tank to be drained at fuel rail connection. Refer to DRB scan tool for fuel pump activation procedures. Before disconnecting fuel line at fuel rail, release fuel pressure. Refer to the Fuel System Pressure Release Procedure for procedures. Attach end of special test hose tool number 6541, 6539, 6631 or 6923 at fuel rail disconnection (tool number will depend on model and/or engine application). Position opposite end of this hose tool to an approved gasoline draining station. Activate fuel pump and drain tank until empty.

If electric fuel pump is not operating, tank must be lowered for fuel draining. Refer to following procedures.

FUEL TANK REMOVAL
  1. Disconnect negative battery cable at battery.
  2. Release fuel system pressure. Refer to the Fuel System Pressure Release.
  3. Raise and support vehicle.
  4. If Equipped: Remove fuel tank skid plate.
  5. Remove 4 fuel hose shield mounting bolts and remove fuel hose shield from body.
    1. Remove fuel tank fill hose and vent hose clamps at fuel tank filler tube. Remove both hoses at fuel filler tube.
    2. Remove exhaust tailpipe heat shield mounting bolts and remove shield. CAUTION: To protect fuel tank from exhaust heat, this shield must reinstalled after tank installation.
    3. Place a hydraulic jack to bottom of fuel tank. WARNING: PLACE A SHOP TOWEL AROUND FUEL LINES TO CATCH ANY EXCESS FUEL .
      1. Disconnect fuel supply line from fuel extension line near front of fuel tank. Refer to Fuel Tubes/Lines/Hoses and Clamps. Also refer to Quick-Connect Fittings for procedures.
      2. Disconnect EVAP canister vent line near front of tank.
      3. Disconnect fuel pump module electrical connector (pigtail harness) near front of tank. Harness connector is clipped to body.
        1. Remove two fuel tank strap nuts. Position both tank support straps away from tank.
        2. Carefully lower right side of tank while feeding both fuel hoses through access hole in body. Fuel Tank Full And Not Drained Using DRB Scan Tool: To prevent fuel loss through hoses, keep left side of tank higher than right side while lowering. Do not allow hose openings to drop lower than top of tank.
        3. Continue lowering tank until clear of vehicle. Place tank on floor with left side (hose side) higher than right side
          1. Drain tank by removing fuel fill hose at tank. Fuel fill hose is largest of 2 hoses. Insert the drain hose (from an approved gasoline draining station) into hose opening. Drain tank until empty.
          2. If fuel pump module removal is necessary, refer to Fuel Pump Module Removal/installation for procedures.
          INSTALLATION
          1. If fuel pump module is being installed, refer to Fuel Pump Module Removal/installation for procedures.
          2. Install fuel fill/vent hoses to tank fittings. To prevent hose from kinking, rotate each hose until index mark on hose is aligned to index tang on fuel tank.
          3. Install hose clamps to hoses. Position clamps between index marks on each hose.
          4. Position fuel tank to hydraulic jack.
          5. Raise tank into position while guiding fuel fill and vent hoses into and through access hole in body.
          6. Continue raising tank until positioned to body.
          7. Attach two fuel tank mounting straps and mounting nuts. Tighten nuts to 10 Nm (90 in. lbs.) torque. Do not over tighten nuts.
          8. Install both fuel hoses to fuel fill tube. Tighten both retaining clamps.
          9. Position fuel hose shield to body. Install and tighten 4 mounting bolts.
          10. Connect fuel pump module pigtail harness electrical connector near front of tank.
          11. Connect fuel pump module supply line near front of tank. Refer to Quick-Connect Fittings for procedures.
          12. Connect EVAP hose near front of tank.
          13. Install exhaust tailpipe heat shield.
          1. Install fuel tank skid plate (if equipped).
          1. Lower vehicle and connect battery cable to battery.

Feb 08, 2009 | 1999 Jeep Cherokee

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