Can an injector stuck open?

Can an injector stuck open?

The symptoms of a stuck-open or incompletely closing fuel injector are quite different than an injector that is completely dead or partially clogged. In this case, there may be an odor of unburned fuel in the engine compartment, coming through the vents, or even out of the tail pipe.

How long does a fuel injector stay open?

Every injector is pressurized by fuel and the opening time is very short. The opening time is something between 1 mS to 10 mS depending on the manufacture of your system and the engine load. The time the injector is closed is between 50 mS and 100 mS (on idle).

What controls when an injector is opened?

The amount of fuel injected is controlled by a flap valve located in the engine’s air intake. The fuel then squirts out into the inlet port in the cylinder head. Each injector contains a spring-loaded valve that is kept closed by its spring pressure. The valve only opens when the fuel is squirted in.

How do you tell if your fuel injectors are stuck open?

Dirty Fuel Injector Symptoms

  1. The Engine Misfires. Dirty fuel injectors may cause your vehicle’s engine to misfire.
  2. Idling Gets Rough. Does your vehicle sputter and shake when you’re at a stop sign or sitting in traffic?
  3. Your Gas Mileage Tanks.
  4. The RPM Needle Starts to Dance.
  5. Your Car Won’t Start.

What happens when 3 injectors are stuck open?

Burning excess fuel makes black smoke, and if you were dumping fuel into the cylinders you’d flood out three and substantially reduce the spray from the other three. I doubt seriously if the engine would run with three injectors stuck wide open. Has the engine been overheated recently? How did the mechanic diagnose this as stuck injectors?

Why are the injectors on my 90 maxima stuck open?

Injectors stuck open! ’90 maxima 245,000 miles…over the course of a few days all three rear injectors (1,3,5) are stuck open and dumping fuel…lots of white smoke and fuel smell. Mechanic told me to replace the fuel injectors, that they are bad. I do not believe this since i recently replaced the injectors.

What should temperature be when fuel injector is stuck?

While the engine is warm, use a laser thermometer and point it at the exhaust manifold pipes. Each cylinder should read plus or minus 30 of 450F degrees. An injector that is stuck closed will give you a reading of 200 to 250F, and one that is stuck open will cause the temperature to rise up to 600F or more.

What should I do if my Ford fuel injector fails?

Fuel Injector Inspection – You can take the injectors out of your Ford and inspect them for damage, dirt or rust. You can start by removing the fuel rails and detaching each injector from the rail. When you remove the injector, there will be fuel that spills out of the rail, so make sure you do not get it on you or the ground.

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