Could you have a tiny
fuel system leak that is slowly bleeding air into the fuel line somewhere?
Although there were recalls on your model year to repair
fuel system leaks, due to defects, I see no indication of any known problem, issue, or defect with the fuel filler door itself.
In the second test, a large amount of the fluid in
the fuel system leaked from a circular fitting (green plastic) on top of the fuel tank.
Fuel system leaks and spills were present in 62 % of motorcycle accidents in the post-crash phase, presenting an unusually high risk of fire not present in other types of motor vehicle accidents.
Not exact matches
The part is made from rigid plastic, it isn't too big, and the
leak rate specification is comparable to other
fuel system components.
Musk's preliminary investigation indicates that «somebody failed to secure a fitting in the
fuel system, resulting in a
leak.»
If the pool
leaks or the cooling
system breaks, as happened in Japan, the nuclear
fuel rods could become exposed and release radioactive gas.
Supporting a rail
system powered by hydrogen
fuel cells, for example, would require an entirely new infrastructure because hydrogen, being a small molecule, would
leak through existing pipelines.
My first thought was that the
leak could be introducing air into the
fuel system, with air bubbles causing the engine to be starved and cut out.
Leak - down Test With the exception of the return lines, this will test the entire
systems ability to hold
fuel pressure...
A vacuum
leak can trigger a «check engine» light because the
fuel system is running too «lean,» meaning it has a greater mix of air than is ideal.
Try removal of the seat, looking at the
fuel system with the key on to see if you see
leaks /
fuel pooling there as that might also occur - keep in mind the
fuel is pressurized for the injectors.
Some Examples: Air filter clogged Exhaust
leak plugged cat clogged
fuel injector malfunctioning
fuel pressure regulator clogged
fuel filter malfunctioning
fuel pump spark plugs, wires, cap, rotor, coil Vacuum
leak dirty throttle body malfunctioning fast idle thermo valve (similar to vacuum
leak) low oil (unless there is an oil level sensor) belts gaskets seals rings low compression bearing damage (rod knock) Broken cam rocker fell / broke off broken valve spring stuck valve critical engine damage (windowed the block) wiring, fuses, relays starting
system - ignition switch, starter, relay Cooling
system - clogs,
leaks, flow (may throw a code if you overheat) transmission clutch (es) driveshaft, differential, axles brakes suspension tires hvac lights gauges
I bet you've got a
leak in the EVAP
system that's allowing
fuel vapors out.
Any
leak in the
fuel system on the vapor side will set this code.
If it's neither of these things then it could conceivably be a vacuum
leak caused by a split pipe or perished rubber seal somewhere on the inlet side of the
fuel system.
Our technicians will perform a complete
fuel injection
system evaluation including a scan of the vehicle's computer
system for codes, a visual inspection of the
fuel system for
leaks, and a road test to verify proper operation.
If there is a evaporative
leak on the
fuel system, then there could be a problem with the
fuel delivery when the
system has too much vapors.
Under the intake manifold is a
fuel injection
system that can
leak fuel into the intake manifold.
I've lost count of the readers and friends who have complained about failed clutches, wacky electrical
systems, rust, water
leaks, failed
fuel pumps and other maladies that have afflicted their various Volkswagen models during the years.
A vacuum
leak can cause an engine to idle high due to the excessive amount of air flow into the
fuel injection
system.
Meanwhile, back on the Corvette Forum, ZERV continued his slow
leak of CAD drawings on Friday and Monday morning with a photo of the C8's rear packaging, a CAD image titled «GEN6 LT7» showing a turbo
system, while a third image provided part of the engine's throttle body and
fuel injection
system.
Stalling at idle could be due to a faulty mass airflow sensor, faulty camshaft or crankshaft position sensors, worn spark plugs, wires or defective ignition coil (s), inadequate
fuel delivery or pressure (clogged
fuel filter, injectors, faulty
fuel pump or pump circuit), contaminated or old gasoline, defective throttle position sensor, faulty idle air control valve,
leaks in the EGR
system, intake vacuum
leaks, and so forth.
Check the
fuel system for any
leaks.
It could be something as simple as old spark plugs producing an uneven power delivery, it could be
fuel system restrictions, a vacuum
leak,...
The
fuel system's evaporative purge valve (https://www.yourmechanic.com/services/canister-purge-solenoid-replacement) could have a
leak causing the
fuel system to
leak out the vapors.
The
fuel system flooding can only mean two things: The
fuel injectors may be
leaking or held open.
You need to have the car checked for a
fuel leak at the
fuel filter and the
fuel system.
Electric windows failed Rear door locks failed Infotainment
system crashes Interior creaks and rattles Engine has become very rough
Fuel filler neck
leaks Suspension faults Blue smoke from exhaust New DPF required Falling MPG (as low as 33mpg on one journey!)
The lack of response to the accelerator pedal has quite a few potential causes that would have to be sorted out in a diagnostic including, just as a few examples, plugged
fuel injectors, faulty oxygen sensors,
fuel pump and / or filter, vacuum
leaks including that caused by a faulty EGR
system, ignition
system malfunctions, bad valve timing if the timing belt or chain is worn or skipped, blocked exhaust (e.g., catalytic converter fails or becomes clogged), a faulty airflow sensor or throttle position sensor, and so forth.
Loss of power on acceleration can be due to plugged
fuel injectors, faulty oxygen sensors,
fuel pump and / or filter, vacuum
leaks including that caused by a faulty EGR
system, ignition
system malfunctions, bad valve timing if the timing belt or...
I would recommend enlisting the help of an automotive service professional to inspect your
fuel system to find the source of the
leak.
The causes include vacuum
leaks and EGR
system faults, a faulty idle air control (IAC) valve or circuit, faults in the
fuel pump control circuit, defective...
The code means the
fuel vapor
system has a very small
leak and may be hard to locate on some vehicles and the code will keep coming back till the
leak is found.
Spark Plugs - change (accordingly based upon stock heat range or colder if you are doing certain upgrades) Coolant - flush and change (every 120) MAF - Inspect and Clean if needed Thermostat -(change if indicated; see notes above) Air filter - change or clean (see notes above)
Fuel Filter - change and inspect entire fuel system Oil Fill Cap - check for leaking, install OEM Oil Filler Cap Rubber Gasket if ne
Fuel Filter - change and inspect entire
fuel system Oil Fill Cap - check for leaking, install OEM Oil Filler Cap Rubber Gasket if ne
fuel system Oil Fill Cap - check for
leaking, install OEM Oil Filler Cap Rubber Gasket if needed
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Hopefully, they will avoid the stupid mistakes they made in their engineering of the diesel Liberty (
leak prone
fuel system, a
fuel filter / heater that caused fires, an inadequate transmission, an air cleaner that requires filter changes at 5000 miles, and an exhaust gas recirculation
system that regularly self destructs).
In a more technical jargon, vacuum or intake
leaks are called «unmetered air», as the air enters the intake
system through a damage intake boot or other
leak is not metered by the mass air flow sensor and therefore the the engine computer can not calculate the amount of
fuel injected properly, causing the engine to run «lean».
The figure included gas that escaped from wells during extraction, losses at processing facilities and
leaks from the
systems used to transport and store the
fuel.
Plumbing
system, interior supply, fixtures, functional flow, supply
leaks, cross connections, waste and vent
system, drain
leaks, functional drainage, water heater, safety controls, flues and combustion air vents and
fuel distribution
system.