Question about 1997 Pontiac Sunfire

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Fuel injectors leaking

2 of my fuel injectors leak. purchased o rings and it still leaks. no diagram in owners manual to repair. what are we doing wrong? What else can be done to solve this problem?

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  • Anonymous Feb 12, 2009

    my 97 has a leaky injector. i have replace the o-rings twice and it still leaks. So I replaced the injector and it still did not fix the problem. I have read were this seems to be a steady problem with the 2.2litre engines.

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  • 6,784 Answers

Try replacing the whole injector. that should fix that leak.

Posted on Feb 04, 2009

  • Michael Masters
    Michael Masters Feb 04, 2009

    you could have a surface hairline crack. i would replace the both injectors just to be safe.

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1 Answer

How do I change out a leaking fuel rail of Ford F150, 5.0 engine


You do not say what year the truck is.. but the ford 5.0-v8 fuel rails very rarly leak.. This is the part that supplies fuel to the injectors. There are rubber o rings that attach the fuel rail to the injectors sometimes these leak.. you can get a O ring seal kit from Rockauto.com at a very reasonable price. The fuel rail can come from the salvage yard.. I have never seen a Ford fuel rail leak except for the O rings. which rarly go bad. If you remove the rail replace all the o rings. use a little lub on the rings to help reassemble. Before you start take pictures of everything in the area you are going to work on. Buy or borrow a Clymer manual for your truck before you start. Good luck.. follow up with a comment and let us know what you find.

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1993 dodge dinesty 3.4 fuel rail leaks how can i repair


If the metal fuel rail itself has a leak, it should be replaced. If it is leaking by an injector, the O-rings on the injectors need to be checked and probably replaced. If a fuel line to the rail is leaking, that will have to be repaired. There will be two fuel lines at the rail, the feed line in from the gas tank, and a return line from the rail back to the tank. If there is a pressure regulator on the fuel rail (it will have a short vacuum line hose to it), the regulator may also have an o-ring to keep from leaking where it mounts.

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Gas leaking from the top right of motor


warning.!!
do not drive it or park it near buildings.
my guess, is you dont know what to do.
easy find what leaks.
or get help.
no body here can guess, where, only you can see it.
try to get it to leak key on, only. if yes, use 2 persons one at key.
no smoking, (nor any fires, spark, or heat sources)
that includes dumb houses with water heaters in garage.. bad.... <=1955? houses?
my wild guess
injectors leak
injector o-rings bad.
fuel rail leaks,
gas hoses to same leak.
top right means nothing.

one other place fuel can leak
is the exhaust ports, those are the rusty tubes there.
if they leak , at the exhuast ports, that is gross injector leaks.
always a bad injector, (or being told do mess up, (ECU bad)

that is it on leaks. tell more get more, and do not drive it.



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1 Answer

1g fe engine diagram


The injectors have a 'O" ring around the tip to seal off the nozzle and if the injector is loose or the "O ring is old it will leak.; Replace the "o" ring and tension the injector correctly. Do them all as if one is leaking the rest will not be too far behind.

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2 Answers

I need to replace the #2 fuel injector. Is this something a layman such as I can accomplish?


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 9306zg58.gif
    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 9306zg59.gif
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.
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1 Answer

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Where is it leaking? If its at the fuel rail fuel pressure regulator you may need a new regulator if leaking on the metal part. If its leaking at the rail side its just the "O" ring. Relieve fuel pressure(push in valve under plastic cap right side beside alternator on rail. Remove the torx screw holding regulator bracket. Pry out and replace "O" ring, reassemble. If its not the regulator it may be a fuel injector, you need to remove the fuel rail and replace both the upper and lower injector "O" rings. This however needs the intake manifold removed to repair.

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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.

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1 Answer

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2 Answers

Gas smell in car


There is a recall on the fuel rail for your vehicle. In my case I had 2 leaking fuel injectors. The intake manifold needs to come off, but it pretty easy to change the o-rings on the leaking injectors. Costs is about $25 for the new o-ring and about 2 hours of your time.

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1 Answer

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Dont replace just one O ring on the injectors. You need to replace all when you replace them. It sounds like you still have O ring leaks.

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