Clean EGR valve, maybe stuck open with carbon
It could be that your EGR valve has failed or has a piece of carbon stuck in it .
Sometimes a piece of carbon will get caught in the EGR Valve. If is is hard starting, idles rough, and the brakes are hard, check the EGR Valve, it probably has a piece of carbon stuck, keeping it open.
It is just stuck,
The valve has failed.The valve has failed.
stuck valve in valve body? solenoid valve faulty if it has one?
When you shake the PCV valve it should rattle. If it does not rattle then it is probably stuck and should be replaced.
Carbon build up. Sticky or stuck EGR valve. Vacuum supply line damaged/leaking. Faulty EGR valve. Faulty EGR Position sensor/wiring.
common problem with all hyundais and kias its a stuck open purge valve. when refueling fuel vapors travel past the stuck open valve and flood the intake with fuel vapors giving hard start condition.
you cant, it has to be removed. it is very simple though, onlt 2 bolts and a connector. it is right in the front of the engine and it probably has a pebble of carbon stuck in it.
Through the spark plug hole, soak the valve with penetrating oil. After sitting a while, tap lightly on the valve stem with a hammer. If after several tries this does not work then the head will need to be removed to see why the valve is stuck.
an EGR valve gasket is available that has a screen to block the carbon. They cost $5.69 at the autoparts store in my city.
first you have to turn the valve and see if it was just in a wrong position
Unscrew the cap on the top of the valve and pull out the valve. Make sure it is clean and apply valve oil to the valve. Depending on how stuck it is and if the euphonium has not been played in a long time will determine how much valve oil you will have to use. After you have oiled the valve put the valve back in, making sure the guide is lined up, and then screw back on the top cap finger tight. If the valve is really stuck and you can not get it out you should take the euphonium to a instrument repair shop so you don't damage the instrument.
As a 33+ year HVAC veteran, it's been my experience that, even if you can "free up" a stuck zone valve, it will stick again. If it's actually the valve itself that's stuck, rather than the "actuator" motor having failed, then it's usually best to replace the valve body.
Sure if the valve gets stuck open and the flapper get stuck closed.
It is stuck in a rubber hose and pushed in the top of the valve cover
Code 12 is a faulty EGR valve. You need to clean or replace the EGR valve of all carbon. The exhaust passage on which the EGR is mounted needs to be cleaned of carbon deposit as well. The flashing D4 light indicates a transmission problem. This needs to be looked at by a professional.
The float could be stuck because of stuck needle valve, or rust. The float could also be leaking and be full of fuel.
It is in a hose that is stuck in the top of the drivers side valve cover.
There is a proportioning valve and once the repair is done and you have bled all the air out of the system the valve should reset itself unless it is stuck. If it is stuck you may have to replace the valve assembly if you can't free it up.
If the egr valve was stuck open, the engine wouldn't idle. If the egr valve was stuck closed you may hear excessive pinging (spark knock) and in most vehicles, the check engine light would illuminate.
You covered the inlet valve with your hand, breathed in, took your hand away from the valve, and it's still sucked in? That means no air is getting in. Take the mask off and remove the inlet valve cover. See if somehow the inlet valve got stuck. If that's not it, change the filter. The only way air gets into a serviceable pro mask is through the filter, and if air isn't getting into the face piece that means it's either not getting through the inlet valve or it's not getting through the filter.
Solenoid switch valve latched in the low/reverse position.It means that a valve is stuck in the valve body.
Solenoid switch valve latched in the low/reverse position. It means that a valve is stuck in the valve body