Skip the auto shop - Our mechanics make house calls

Q: Why does my injector keep leaking?

asked by on

I just did an injector Job my self, I changed all injectors and all o rings and copper washers were put on also I replaced my fuel return lines and those aren't leaking and it isn't leaking fuel from my fuel rail but my number 8 injector keeps leaking at the base and the middle rubber o ring keeps burning off or something so why is that happening? I put a new ring and washer on it and then put it back in and it drove for about 10 miles but drove kinda sluggish and then it white smoked and now I'm back where I started with no o ring

My car has 305000 miles.

Hello. If the rubber O-ring keeps burning off then it may be possible that the engine is running too hot. I would check to see if any heat shields or similar components are out of place, or if the engine is running hotter than normal. I would also make sure that the seals and o-rings you are using are quality components and are the correct type. If the incorrect o-rings are used, that may be why they are having issues. It may also be possible that the injector itself is faulty and needs to be replaced. If you need to have this looked at, a certified professional from YourMechanic can come to your home or office to diagnose the leak and assist with repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Why does my injector keep leaking?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Leak coming from fuel injector

Hello. If you see a leak in a fuel injector the car should not be driven until repaired since fuel is flammable. Along with replacing the fuel injector, all of the O-rings on the other injectors should be replaced to...

Q: Takes 5-10 seconds of ticking over before engine will fire up

Hello there, the trouble starting your Vauxhall Corsa is a common issue. The most likely cause would be the battery, which you have already replaced. A few other faults can cause hard starting such as the starter, battery cable, fuel...

Q: duramax running crappy in cold weather

Hi there. In most cases, when an aftermarket tuner is utilized, traditional OEM diagnosis of problems is extremely difficult; since they impact both electrical and mechanical fuel, and ignition systems. Your best bet is to have a professional mobile mechanic...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.