Do fuel injectors fail open or closed?
A bad fuel injector can fail closed, fail open or not seal when closed and can work normal but have reduced flow from blockage. A fuel injector that is stuck open or leaking seat will flood or run rich the cylinder. A clogged or low flow injector can cause surging, low power or misfire in cylinder.
How do you check if a stuck injector is 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.
When was the last time a polo injector failed?
This topic has 16 replies, 10 voices, and was last updated 2 years ago by andyl. Injector failure, are the rest on the way out? Crystal ball gazing type question, but just had to have an injector replaced on our 1.6 TDI polo (2010).
What happens if the fuel injector is not working?
Fuel injectors are a vital part of a complex fuel management system. Furthermore, New technology has made fuel injectors more precise than ever in dispensing fuel. If the fuel injectors are not operating properly, then other parts of the engine will be affected as well.
What happens if the cold start injector leaks?
If the cold start injector leaks at the nozzle, and allows fuel into the intake this will cause an excessively rich mixture. This leak will result in a decrease in fuel efficiency, and in some cases performance and acceleration.
When to look for a clogged fuel injector?
When you notice any of these clogged fuel injector symptoms with any of your vehicles or other mechanical equipment using fuel injected engines, it’s definitely a good idea to look into some injector cleaning products. However, once again it pays to emphasize the value of prevention.