2000 Ford Expedition Ticking/ tapping in under the hood
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All you could do is make a wild guess from what we have been told so far.
Guys, there are a hundred moving parts under the hood, to say it is ticking doesn't help...
Does it go away once the engine has warmed up? Is the rate of ticking related to the rpm?
Could be the exhaust manifold leaking, that usually goes away when warm unless it has been doing it for a long time.
Could be a spark plug getting ready to blow out
Could just be the typical cold engine noise most of these engines make.
Fuel injectors are apretty soft tick, usually not heard with the hood closed.
Timing chain tensioners could be bad leading to several different noises.
So short of someone like Mel offering to come take a listen, you are going to have to help narrow it down on your end before anybody can be much help here.
Guys, there are a hundred moving parts under the hood, to say it is ticking doesn't help...
Does it go away once the engine has warmed up? Is the rate of ticking related to the rpm?
Could be the exhaust manifold leaking, that usually goes away when warm unless it has been doing it for a long time.
Could be a spark plug getting ready to blow out
Could just be the typical cold engine noise most of these engines make.
Fuel injectors are apretty soft tick, usually not heard with the hood closed.
Timing chain tensioners could be bad leading to several different noises.
So short of someone like Mel offering to come take a listen, you are going to have to help narrow it down on your end before anybody can be much help here.
#11
'05 EXPY 4x4 105k here.. I'm not a professional, but here is my experience. Had a ticking sound under the hood.. Was a constant sound.... Sound was on top half, on passenger side.. Also was sluggish.. Brought it to a local independent guy who was able to diagnosis and repair it. The timing chain tensioners were disintegrating and the bits of plastic were clogging the flow of of oil into the passenger side of the engine.. So we replaced the timing chains, tensioners and associated parts that were jammed with plastic from the originals, and voila ticking sound was gone, and performance improved. Not sure this is your engines issue. but just a possibility based on my experience.. Good luck !
#12
'05 EXPY 4x4 105k here.. I'm not a professional, but here is my experience. Had a ticking sound under the hood.. Was a constant sound.... Sound was on top half, on passenger side.. Also was sluggish.. Brought it to a local independent guy who was able to diagnosis and repair it. The timing chain tensioners were disintegrating and the bits of plastic were clogging the flow of of oil into the passenger side of the engine.. So we replaced the timing chains, tensioners and associated parts that were jammed with plastic from the originals, and voila ticking sound was gone, and performance improved. Not sure this is your engines issue. but just a possibility based on my experience.. Good luck !
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