How do I know if my injector seals are leaking?
Symptoms of Leaking Fuel Injectors:
- Hard Starting when engine is hot.
- Increased Fuel Consumption.
- Rough Idle.
- Fuel odors inside and around the car.
- Poor Emissions.
- Oil thinning, which can lead to catastrophic engine failure.
- Hydro-lock, which can lead to catastrophic engine failure.
What happens if injector seals are bad?
A bad injector o ring can cause the vehicle to experience difficulty starting, misfires, a loss in power, acceleration, and fuel efficiency, and in more severe cases even stalling. Usually engine performance issues will come after a fuel smell or leak.
Can you seal a leaking injector?
Fuel injectors are often needlessly replaced when they develop a leak. Unless the body of the injector is leaking, which is rare, replacing the O-ring seals is all that is needed.
What causes injector seals to fail?
So, the most common cause of leaky injectors is; the failure of the O-ring, where the injector meets the fuel rail. The O-ring can become, hard and brittle, from the heat of the engine. If it breaks, then fuel can leak out, over the engine. The other way an injector will leak is if, the injector body or nozzle cracks.
How do you test a fuel injector seal?
Look very closely at each fuel injector head where it connects to the fuel rail. Look for any obvious dribbling leaks or fuel spray pattern on the rail, injector body or cylinder head. Smell for gas. A leak at the injector head will indicate bad O-ring seals inside the injector body.
How long should injector seals last?
The fuel injector O-rings are made of rubber and are intended to last around 50,000 miles. Due to their rubber construction, it is very easy for these O-rings to dry out and become brittle and damaged. There are a number of different O-ring lubes on the market that can help them last longer.