How do I replace fuel injector? - 1992 Chevrolet Cavalier

Silverado 1500 or 2500 or 3500 or HD? no pickup told
not told the job you are doing>??
remove them all ,or scope them or just what, no job told
no end goal or task told. sorry can guess it.

like most V6/8 now , it is a sandwich.
the service manual covers all,l buy it rent it.?
toss dice and land on 1500
the rail on this engine, fuel rail like all , intake manifold injectors used;. all injector held down by both rails. left and right
now the steps to off them if is the job,
pull the isolator seen photo 1, far below.
1: pull left rail and right rail
Remove and discard the fuel injector retainer clips by installing EN-51097 injector retaining clip installer and spreading both sides of the clip evenly.
Always use NEW fuel injector collars supplied with injector when installing the new injector. If reinstalling the injector, it is not necessary to remove the collars unless the collars are being replaced.
Replace the injector seals as needed. Refer to Fuel Rail and Injectors Cleaning and Inspection.
Note
Inspect the injectors to be sure that they are clean and free of debris prior to installation. Do NOT lubricate the injector seals. Rebuild the fuel injectors whenever the injector has been removed from the fuel injector rail.


now I will past the other page rails off per the manual read to you.
just bank 1, i am to lazy to post both
step 1 rail off bank1.
Note
Inspect the injectors to be sure that they are clean and free of debris prior to installation. Do NOT lubricate the injector seals. Rebuild the fuel injectors whenever the injector has been removed from the fuel injector rail.

1. Remove the fuel pump insulator. Fuel Pump Insulator Replacement
2. Remove the fuel injector intermediate pipe position?1. Fuel Feed Intermediate Pipe Replacement - Position 1
3. Clean the cylinder head pocket around the injectors of any dirt or buildup.
4. Disconnect the electrical wiring harness connectors from the fuel rail.
5. the fuel rail fasteners are retained in the fuel rail by keepers and may be difficult to remove.Remove the fuel rail fasteners?(1) securing the injector rail?(2).
   Install two sets of EN-49248 remover?(3).
6. Install one remover in each of the fuel rail fastener bores.
7. Remove by turning each section of the EN-49248 remover an even amount to pull the fuel rail and injectors out evenly.
8. CAUTION
9. Remove the fuel rail assembly carefully in order to prevent damage to the injector electrical connector terminals and the injector spray tips. Support the fuel rail after the fuel rail is removed in order to avoid damaging the fuel rail components.
10. Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering open pipes and passages.
11. 1. Simultaneously lift both ends of the fuel rail?(2) and remove the fuel rail assembly from the cylinder head.
12. Remove and DISCARD the fuel injector seals.
13. Some vehicles were not originally equipped with fuel injector dust seals. A NEW seal must be installed when the injectors are removed.
    Remove and DISCARD the fuel injector dust seal (1).
14. NOTE
    Note
    Whenever the fuel injectors are removed from the cylinder head or fuel rail, they will need to be rebuilt. Fuel Rail and Injectors Cleaning and Inspection
    If replacing the fuel injection fuel rail, remove the fuel injectors. Fuel Injector Replacement

Installation Procedure, skipped me. the service manual lists 4 tools
per

Special Tools

1. EN-49248 Injector Rail Assembly Remover
2. EN-51105-1 Injector Seal Installer and Sizer
3. EN-49245-3 Fuel Injection Seal Installer Sizer
4. EN-49245-4 Fuel Injection Seal Installer Sizer

this is first. pull the isolator.

this one step is the GET TO ANSWEREd
Injector work 10x more complex and special tools needed x4

remove the bolts that hold the fuel rail. Lift the fuel rail, pulling the injectors out carefully. Make sure the rubber seal comes out with the injector. Remove the electrical clip for the injectors you want to change. Clip in the new injector, and replace the fuel rail and the injectors.

For jeep grand Cherokee fuel injectors replacing, i suggest you to go the help oink provided below:-----

Its a complete step by step procedure to do so:-----

Fuel Injector Replacing Jeep Grand Cherokee

http://www.howtorepairguide.com/2012/11/fuel-injector-replacing-jeep-grand.html
-------------

How to Replace a Fuel Injector
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-injector.html-----------

How to Test and Replace Fuel Injectors on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-test-and-replace-fuel-injectors.html
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How to change fuel injector on 2005 gmc envoy?
http://schematicsdiagram.blogspot.in/2012/03/how-to-change-fuel-injector-on-2005-gmc.html
------------These will help.Thanks.

FIRST YOU NEED TO RELIEVE FUEL SYSTEM PRESSURE BY REMOVING FUEL FILLER CAP THEN DISCONNECT FUEL PUMP HARNESS OR UNPLUG FUEL PUMP CIRCUIT RELAY, THEN START ENGINE LET IT IDLE UNTIL DIE LACK OF FUEL.TO REMOVE FUEL INJECTOR YOU NEED TO REMOVE FUEL DELIVERY PIPE WITH FUEL INJECTORS AS A ASSEMBLY TO REMOVE FUEL INJECTOR.YOU NEED TO TAG NUMBER ALL VACUUM HOSES AND PCV VALVE,NUMBER TAG FUEL INJECTORS WIRE CONNECTORS SO YOU CAN PUT EVERY THING BACK IN RIGHT PLACE.

REPLACE THE FUEL INJECTOR CANT REBUILT IT.IF YOU REMOVE FUEL INJECTORS FUEL RAIL YOU HAVE TO REPLACE GROMMETS AND O RINGS ON ALL THE FUEL INJECTORS IF NOT YOU WILL HAVE A INTAKE LEAK AT THE OLD FUEL INJECTORS SEALS.REPLACE THE FUEL INJECTOR YOU REBUILT THEY HAVE TO BE REPLACED.

You could do it, but remember gasoline is flammable and volatile and can be hazardous to work with: REMOVAL AND INSTALLATION 1.9L Engines

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Properly relieve the fuel system pressure.
3. Remove or disconnect the following:
   • Negative battery cable
   • Fuel rail
   • Fuel injector retaining clip off the injector
   • Fuel injector
   • Fuel injector O-rings and discard them Fig. 1: Fuel injector identification-1.9L engine
     
   To install: NOTE: The SOHC and DOHC fuel injectors are not interchangeable. The injectors are identified by a color coded plastic ring near the bottom of the injector. The SOHC injector has a blue ring near the O-ring that mates to the intake manifold and the DOHC has a pink ring.
   
4. Lubricate the new fuel injector O-ring with clean engine oil.
5. Install or connect the following:
   • New O-ring seals on the fuel injector
   • Retaining clip to the fuel injector
   • Fuel injector to the fuel rail
   • Fuel rail
   • Negative battery cable
6. Start the vehicle and check for leaks, repair if necessary.

2.2L and 3.0L Engines

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Properly relieve the fuel system pressure.
3. Remove or disconnect the following:
   • Negative battery cable
   • Fuel rail
   • Fuel injector retaining clip off the injector
   • Fuel injector
   • Fuel injector O-rings and discard them

Fig. 2: Remove the retainer clip from the fuel injector - 2.2L and 3.0L engines
To install:

1. Lubricate the new fuel injector O-ring with clean engine oil.
2. Install or connect the following:
   • New O-ring seals on the fuel injector
   • Retaining clip to the fuel injector
   • Fuel injector to the fuel rail
   • Fuel rail
   • Negative battery cable
3. Start the vehicle and check for leaks, repair if necessary.

Best Practices

• Using lower quality gasoline can result in recurring fuel injector problems, even after a fuel injector replacement.
  

• Fuel injector seals should always be replaced along with fuel injectors.
  

Common Symptoms

• Failing fuel injectors can cause engine misfiring and hesitation. The Check Engine Light may come on and set diagnostic trouble code(s).
  

A bad fuel injector can cause spark plug issues. If the injector does not supply enough fuel, the cylinder(s) without enough fuel will run hot, often damaging the spark plugs.

But your mechanic needs to make sure that the injector is the issue and not a fuel pressure issue from regulator, filter, or pump. Hopefully he/she has already done those checks.

As far as the labor cost being less the spark plugs wouldn't be removed during the fuel injector replacement. Even if they did, most mechanics won't cut the price. But if you are a regular customer it can't hurt to ask.

Unscrew the lines to the fuel injectors, there is no need to remove fuel injectors to replace a head gasket.

To Install:

1. Lubricate the NEW fuel injector O-rings with clean engine oil.
2. Install the O-rings on the fuel injector.
3. Install a NEW retainer clip on the fuel injector.
4. Install the fuel injector in the injector socket with the electrical connector facing outward. The retainer clip locks onto a flange at the fuel rail injector socket.
5. Install the fuel rail.

NOTE: Use care in removing the fuel injectors in order to prevent damage to the electrical connector pins on the injector and to prevent damage to the nozzle. Service the fuel injector as a complete assembly only. The fuel injector is an electrical component. DO NOT immerse the fuel injector in any type of cleaner.