Question about 1999 Jeep Cherokee

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I have to turn my 98 Jeep over 3 to 4 X before it will start. Is this to do with the fuel injectors and rail?

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  • 344 Answers

Run a can of injector cleaner through with your next fill and replace fuel filter but do in reverse order lol fuel filter then fill tank and add injector cleaner

Posted on Sep 19, 2013

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Posted on Jan 02, 2017

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Anonymous

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SOURCE: replacing fuel injector on jeep 2.5

Disconnect your Battery.
Remove your air intake and filter housing all the way to the throttle body. Then use a shop rag and release te pressure in the fuel system by the valve on the fuel rail. use the rag to absorb the fuel as it sprays out the fuel rail.
then you unsrew the 2 bolts holing the rail in place.
Then you pry the rail away from the manifold with a flat head.
being careful not to loose any of your injector seals.
when done clean both your injector seats and the rail seats.
use some assembly lube or shop grease to lubricate all of your injector seals upper and lower seals.
remount all parts as you dismounted.
reconnect your battery cylce the ignition key 4-5 times before starting the egine, and check for leaks. if there is no leak then go ahed and start your engine.

Posted on Jun 20, 2008

Richard Scordino

  • 6982 Answers

SOURCE: 1993 JEEP GRAND CHEROKEE LAREDO- TRUCK WONT

OK...I have a 93 outside...one diagram I have shows an ignition module next to coil...but there is none on mine, (4.0 engine)
Two items to check are crank sensor and cam sensor inside distributor. Test procedure can be found in just about any manual including haynes.
You will need a decent volt/ohm meter to do testing. You can also check codes by turning ignition switch on/off three times, leaving it on the third time. Check engine will flash code #'s (ex: one flash, pause two flashes= the number twelve.then followed by a longer pause then another set of flashes etc.)

Posted on Mar 05, 2009

Moe

  • 335 Answers

SOURCE: 99 jeep cherokee died going down the road. will not start. has fuel but no fire

Check spark to plugs. Possible crankshaft position sensor. Located at rear of engine between engine and trans.

Posted on May 28, 2009

ryan karos

  • 49 Answers

SOURCE: new pump, no fuel pressure at fuel rail??

fuel pump relay

Posted on Oct 04, 2009

Richard Scordino

  • 6982 Answers

SOURCE: 1999 Jeep Grand Cherokee Larado wont start.

If computer sees no crank sensor signal it shuts down pulses to the injectors. But, you bring something new into the mix. Make sure fender grounding is good so the relay can operate properly and make sure power going to it is not restricted by a loose or dirty contact on the power side.

Posted on Oct 23, 2009

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1 Answer

03 3.7 have new o rings for bottom of injectors do you put it on the head first or on the injector just put head gaskets on jeep


old post but see it asked many times.
assemble the rail first, its 1 piece so must be ready first.
3.7L Engine (FSM) RTM?
(1) If fuel injectors are to be installed, refer to Fuel
Injector Removal/Installation.
(2) Clean out fuel injector machined bores in
intake manifold.
(3) Apply a small amount of engine oil to each fuel
injector o-ring. This will help in fuel rail installation.
(4) Position fuel rail/fuel injector assembly to
machined injector openings in cylinder head.
(5) Guide each injector into cylinder head. Be careful
not to tear injector o-rings.
(6) Push right side of fuel rail down until fuel
injectors have bottomed on cylinder head shoulder.
Push left fuel rail down until injectors have bottomed
on cylinder head shoulder.
(7) Install 4 fuel rail mounting bolts and tighten.
Refer to torque specifications.
(8) Install 6 ignition coils. Refer to Ignition Coil
Removal/Installation.
(9) Connect electrical connectors to throttle body.
(10) Connect electrical connectors at all fuel injectors.
To install connector, refer to (Fig. 37). Push connector
onto injector (1) and then push and lock red
colored slider (2). Verify connector is locked to injector
by lightly tugging on connector.
(11) Connect necessary vacuum lines to throttle
body.
(12) Connect fuel line latch clip and fuel line to
fuel rail. Refer to Quick-Connect Fittings.
(13) Install air box to throttle body.
(14) Install air duct to air box.
(15) Connect battery cable to battery.
(16) Start engine and check for leaks.

Oct 07, 2014 | Jeep Cars & Trucks

1 Answer

I have a 1993 jeep yj put a new fule pump in it lots of gas in fule rail turns over dost start can aneyone help


If the injectors do not fire, fuel in the rail does not matter since it's not getting gas into the engine. Look to see if your check engine light comes on, when you turn on the ignition. If it does not, then your ecu computer is in need of repair since it's not sending either a spark or fuel injector signal to fire up your jeep.

Mar 14, 2013 | 1993 Jeep Wrangler

2 Answers

How can I tell if a fuel injector is bad?


i would start first tune up,fuel filter,air filter,coils.

Mar 14, 2013 | 1994 Jeep Grand Cherokee

1 Answer

How to install a fuel injector on a 2002 jeep liberty 3.7


so that mean the old one is all ready removed.?
or did you mean all steps in the fsm for INJECTOR.
the steps are the same on all EFI fuel rail injectors.
you could google that or you tube it or read the FSM.

hide call keys from step 2 on, or very bad things can happen.
(wife or kids no aware of danger)
ill just cover the (basics)
1: per FSM , depressurize the system, in can be at 60PSI
parked. so avoid fuel in eyes, or a fire. we do that first.
gain access to rail under failure. (RUF) (no barking)
2: remove injector X , wire plug. (failing)
3: then detach the injector rail clamps the both rails off as one....
injector are all now loose, to pull off.
4: add new seals to new injector, and install in reverse order.

that's it, only the gain access , varies,... mostly.

last depressure steps:
run engine,
remove fuel pump relay, engine stalls. key off, hide keys
!

next tje FSM words (just the OFF section)

  1. Remove fuel tank filler tube cap.
  2. Perform Fuel System Pressure Release Procedure.
  3. Remove negative battery cable at battery.
  4. Remove air duct at throttle body air box.
  5. Remove air box at throttle body.
  6. Disconnect fuel line latch clip and fuel line at fuel rail. A special tool will be necessary for fuel line disconnection.
  7. Remove necessary vacuum lines at throttle body.
  8. Disconnect electrical connectors at all 6 fuel injectors. Push red colored slider away from injector. While pushing slider, depress tab and remove connector from injector. The factory fuel injection wiring harness is numerically tagged (INJ 1, INJ 2, etc.) for injector position identification. If harness is not tagged, note wiring location before removal.
  9. Disconnect electrical connectors at throttle body sensors.
  10. Remove 6 ignition coils.
  11. Remove 4 fuel rail mounting bolts.
  12. Gently rock and pull left side of fuel rail until fuel injectors just start to clear machined holes in cylinder head. Gently rock and pull right side of rail until injectors just start to clear cylinder head holes. Repeat this procedure (left/right) until all injectors have cleared cylinder head holes.
  13. Remove fuel rail (with injectors attached) from engine.
end expert.

alldata.com
login and read all steps. that be best , then ask questions?

Jan 02, 2012 | 2002 Jeep Liberty

2 Answers

I need to access the fuel injectors in my 98 wrangler, but i dont know how to get to them


FIRST NEED TO RELIEF FUEL PRESSURE REMOVE GAS CAP RELIEF GAS PRESSURE IN FUEL TANK.THEN REMOVE FUEL PUMP RELAY THEN START ENGINE UNTIL IT DIES LACK OF FUEL,CRANK ENGINE OVER FEW MORE TIMES MAKE SURE FUEL OUT OF FUEL LINES. THEN YOU NEED TO REMOVE AIR CLEANER CROSS OVER TUBE ABOVE FUEL RAILS. DISCONNECT LINES AT THE ENDS OF THE FUELS RAILS ASSEMBLY. MARK AND DISCONNECT THE FUEL INJECTOR WIRE HARNESS CONNECTORS. REMOVE THE FUEL RAIL RETAINING BOLTS, DISCONNECT THE VACUUM LINE FROM THE FUEL PRESSURE REGULATOR. REMOVE THE FUEL RAIL ASSEMBLY FROM THE ENGINE. IF YOU HAVE AUTOMATIC TRANSMISSION REMOVE THE THROTTLE PRESSURE CABLE AND BRACKET TO REMOVE THE FUEL RAIL ASSEMBLY.TO REMOVE FUEL INJECTORS JUST REMOVE CLIPS THAT RETAIN FUEL INJECTORS IN FUEL RAIL. BESURE GO TO DEALERSHIP BUY NEW FUEL INJECTORS O - RINGS.APPLY A SMALL AMOUNT OF ENGINE OIL TO THE O - RINGS TO AID IN INSTALLATION. TORQUE FUEL RAIL BOLTS TO 100 INCH LBS.

Jun 19, 2011 | 1998 Jeep Wrangler

1 Answer

I have fuel leaking from the fuel rail at the 2nd injector from the front. The leak seems to be coming from where the metal of the fuel rail conects to the plastic....


Maybe an O-ring is leaking. Try a new injector that comes with an o-ring to be sure it's not the injector itself.
Fuel Injector - for V8

REMOVAL & INSTALLATION


  1. Before servicing the vehicle, refer to the precautions in the beginning of
    this section.
  2. Relieve fuel system pressure.
  3. Remove or disconnect the following:

    • Negative battery cable
    • Fuel rail
    • Fuel injector retaining clips
    • Fuel injectors

    To install:

  4. Install or connect the following:

    • Fuel injectors, using new O-rings
    • Fuel injector clips to the fuel rail
    • Fuel rail
    • Negative battery cable

  5. Start the vehicle and check for leaks, repair if necessary.

Oct 30, 2010 | 2002 Jeep Grand Cherokee

1 Answer

How to change fuel injector in 98 bravada


You need to relieve the fuel pressure, Gain access to the fuel rail, should be 4 or 5 bolts holding the fuel rail on... once you accessed and removed the fasteners, carefully pull up on the railon aboth sides.. a little wd may help release the injector seals, and you definitely wanna replace the lower o-rings... be careful liining the injectors up when u install the rail

Sep 14, 2009 | 1998 Oldsmobile Bravada

1 Answer

04 jeep grandcherokee laredo won't start. It does turn over but won't start


does it have fuel pressure? the test port is on the top of the engine in the fuel supply rail to the fuel injectors.

Aug 08, 2009 | 2004 Jeep Grand Cherokee

1 Answer

98 jeep wrangler 2.5L #4 misfire


check fuel for pressur and quantati to fuel rail posable fuel pump or regulator

Jun 09, 2009 | 1998 Jeep Wrangler

1 Answer

Replacing fuel injector on jeep 2.5


Disconnect your Battery.
Remove your air intake and filter housing all the way to the throttle body. Then use a shop rag and release te pressure in the fuel system by the valve on the fuel rail. use the rag to absorb the fuel as it sprays out the fuel rail.
then you unsrew the 2 bolts holing the rail in place.
Then you pry the rail away from the manifold with a flat head.
being careful not to loose any of your injector seals.
when done clean both your injector seats and the rail seats.
use some assembly lube or shop grease to lubricate all of your injector seals upper and lower seals.
remount all parts as you dismounted.
reconnect your battery cylce the ignition key 4-5 times before starting the egine, and check for leaks. if there is no leak then go ahed and start your engine.

Jun 20, 2008 | 1987 Jeep Wrangler

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