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I have a 1990 jeep cherokee it will start and run for about 5 seconds and then cut off, I have replaced the fuel pump and still no luck, help please.

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  • Expert
  • 42 Answers

Have you blead the fule systym easy open eny ingector and turn it over till you see fuil then close ingector should be good at that good luck

Posted on Jan 22, 2013

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Posted on Jan 02, 2017

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ginko
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SOURCE: will not start

Try replacing spark plugs and battery, check the distributor cap.

Posted on Jul 29, 2008

  • 2 Answers

SOURCE: 84 toyota supra 5 speed man.

sounds like ecm. car starts but when it switches over to run setting from cranking setting the cumputer ecu doent activate the run curcuits which may control your fuel injectors. check to see if engine has spark. remove one plug wire from spark plug put it close to the valve cover if you see an arc then you know that you have spark. then also go to fuel pump in tank and check voltage on the power wire if you have good voltage and the pump doesnt make any noise while ur cranking then it may be a fuel pump if the pump is making way to much noise then check the fuel pressure by hooking up a fuel pressure gauge. all test are to be done while someone cranks the engine. noid light for the injectors, disconnect on injector electical connetor connect the noid light to the wire that u just unplugged from the injector. the light will flash while u crank , once it goes to the run circut the light will either stay on which will shut off ur car or the light will stay off which will do the same. if the noid light did what I said when it went to the run circut then it is what controls your injectors...ecm good luck....daniel

Posted on Dec 13, 2008

  • 1596 Answers

SOURCE: 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.

Posted on Feb 08, 2009

  • 198 Answers

SOURCE: 2001 Jeep Cherokee - Cranks won't start - Gas gauge "E" w/gas

Disconnect and replace fuel filter.With filter disconnected have someone momentarily turn key to on position to see is fuel pump is working.Make sure you have lots of rags,a drain pan and safety goggles on

Posted on Sep 11, 2009

  • 75 Answers

SOURCE: fuel pump 1989 jeep cherokee

should be just under the rear drivers side door.

Posted on Oct 31, 2009

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1 Answer

1990 Jeep Cherokee 4.0 6 cyl. I ran out of gas, replaced gas, Jeep starts but it stalls almost immeditaly, Feels like no fuel is getting through. Bad fuel pump or clogged filter filter? PLease help.


When you run out of fuel you
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I would have thought you would have
said if you checked fuel pressure at least

Can't have a clogged fuel filter as you change that
every few years

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Have you tried to replace the fuel filter.....sometimes this inexpensive item is often overlooked! It is possible you have some debris in it that gets in the way intermittently and cuts off the flow! If you found this answer helpful please vote so! Thanks

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I own a 1990 Jeep Cherokee Pioneer and for some reason it will not start. The fuel pump AND fuel filter are brand new but when you turn the car over it wont start. It tries to start the longer turn the key...


you have a fuel pump relay . Check to see if the fuel pump is humming when you turn key. check for proper ground for fuel pump. try spraying some carb cleaner into the intake then attempt a start. The engine will run for a few seconds, this will verify spark. corosion at the electrical connections is always a possibility. and lastly can you get the engine running by opening the throttle when starting?

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1990 Cherokee starts but cranks for awhile


Try this: turn key on for 5 seconds,but dont start. turn it off and turn it on again for 5 seconds then try to start it. If it starts up better, you need to test the fuel pressure.
hook up a test gauge to the test port on the fuel rail, try to start and watch fuel pressure, after it builds.to its max turn engine off, it should then hold pressure for a few or more minutes. if it doesnt there are three things that can let it bleed down.

There is a check valve built into the fuel pump that could be stuck open,
An injector could be leaking,
Or the pressure regulator could be leaking.
If it still has problem check your spark plugs to see if they are worn out with too much gap.

Feb 06, 2010 | 1990 Jeep Cherokee Limited

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Check the crank position sensor. I had the same problem in a 1989 cherokee 4.0, and the solution was simply to acomodate the sensor wiring. No replace was necesary

May 31, 2009 | 1990 Jeep Cherokee Limited

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could be a fuel pressure problem.. fuel pump could be going out and loosing pressure..

Apr 21, 2009 | 1991 Jeep Cherokee Briarwood

1 Answer

I have a 1990 jeep cherokee and there is no gas getting to it


first, have someone turn your key on as you listen to the gas tank. you should hear a whirring sound that indicates your fuelpump is working. if not, check your fuses.2nd, change your fuel filter. good luck. if you don't hear any sound from your fuel pump and still after checking fuses, fuel pump may need to be replaced. good luck

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1990 jeep cherokee turns off


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Sep 09, 2008 | 1990 Jeep Cherokee Limited

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