dont even try to unclogg these. just replace them. all three will cost less than 40 bucks
The most things that could make it sputter are: spark plugs, spark plug wires, plugged fuel filter, plugged air cleaner filter, faulty egr, vacuum leaks or bad PCV valve
Plugged fuel filter. Plugged PVC valve. Plugged air cleaner. Any or all of the above. I would suggest looking for a cracked vacuum hose, which is a common cause of a stall at idle..
Plugged fuel/air filter? Plugged catalytic converter? Engine timing? Check EGR Valve
No. The pressure relief valve is part of the pump. The oil filter has a built in bypass valve. It is for if the filter media gets plugged the valve opens and oil still circulates.
Plugged air/fuel filter? Plugged catalytic converter?
it could be the air control valve behind the air filter. It also can be a plugged fuel filter.
take the EGR valve off and spray carb cleaner in the egr valve and in the port. This will some times work as it gets plugged up
Very klikely the PCV valve is completely plugged & non-operable. Good luck changing it though.
Filter plugged, some have a shut off valve as part of the filter, mineral build up at the shut off valve in the supply line or in older pipes the pipe itself can be filled with minerals.
The bypass valve will open and the dirty oil will bypass the filter and go throughout the engine. This will never happen if you change your oil every 5,000 miles and also change the filter.
According to a Nissan forum , it is located behind the alternator, above the oil filter. It's also important to check the PCV filter, which is a rectangular piece of mesh located inside the air filter housing. I can get plugged, reducing the airflow to the PCV valve, or (easily) go missing when changing the air filter.
you are getting blowby from a bad pcv valve. this is in the hose that runs to your air cleaner. there is also a sponge or fiber filter there that probably needs changed too. worst case is your valve seals are shot and need replaced.