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How do you know if you have a bad valve?

Check the compression of the cylinders you will have a low reading in the one with a bad valve


How do you know when valve lifter for 94 mercury villager r bad?

how do you know when valve lifters for 94 mercury villager 3.0 engine r bad


Does your faucet need to be replaced if when its turned on you loose pressure?

No. It sounds like you have a bad pressure reducing valve if your on city water or you might have a swamped expansion tank if your on pumped water. But before you go to extreams you might want to unscrew the end of the faucet and clean the aerator.


How do you know when a PVC valve is bad?

A PVC valve is typically bad in a car if a car has an oil leak. Other signs of a bad valve include a collapsed hose and a sludge-like buildup.


How do you know the bladder in a hot water heating system is good?

If the bladder is bad in your expansion tank the tank will fill with water. When this happens the pressure in your furnace will exceed 30lbs and your pressure relief valve will blow off.


How do you know if the EGR valve has gone bad?

hopw do I find the egr valve on a vauxhall signum


Why does your shower have sudden bursts of hot water?

Maybe pressure balancer going bad or you don't have a pressure balanced valve


What would cause a Chevy vortec to surge?

Low fuel pressure, bad IAC valve, vacuum leak, bad injector(s). You also need to check the EGR valve.


How would you no idle air control valve bad?

1990 Honda accord ex how would you know if idle air control valve is bad?


Will a bad gasket to oil pan cause low oil pressure?

no. bad oil pump, worn bearings or valve guides


How do you know when a manifold tuning valve is bad?

You can tell when a manifold tuning valve is bad when oil is leaking through it. You also can tell by inserting the dipstick into the valve and seeing if oil comes out through the dipstick.


What is the symptoms of a bad PCV valve?

Generally speaking the symptom of a bad PCV valve is a buildup of pressure inside the crankcase. If it is bad enough it can cause the engine oil to come out through the dip stick tube. If you pull the dipstick out and hear a release of pressure that is probably an indication of a bad PCV valve. The common way to check the PCV valve is to take it out and shake it. If it has a rattle then it is supposed to be good, no rattle it is assumed to be plugged up and no longer working. I am not certain if that is still a valid check.