Strange noise while idling in gear

[Captain Morgan]

This morning while parking I opened the door to see if I backed in correctly and noticed a weird noise. It is a rythmic clacking noise that goes away soon after putting it in nuetral or park. Not immediately after, but within 2 seconds or so. I want to say i heard it faintly and intermittently in nuetral and park but nothing as much as in gear.

The A\C was off at the time.

I just had a CV joint replaced on the drivers side, I hope I don't also need one of the passengers side.

Any thoughts as to what else to look for?

TIA


.

 

[Exia]

Could be the thrust bearing in the fly wheel, it causes the fly wheel to move in and out from the motor a good quarter inch, if its going bad. Its a pain but pull your trans and check the flywheel for play, you may be able to pull the starter and check it but not for sure.

 

[01xlt4wd33]

posible exhaust rattle or heat shield

 

[Captain Morgan]

I have an automatic, I'm gonna crawl under it this week with a stethiscope and hunt it down.

 

[Maverick1701]

I have that same issue on my 09 exped (work truck)...it started a little at first (every now and again) but has now gotten worse and more common. Eventually (After about 4mo it got bad enough to throw a CEL then eventually a flashing CEL)

Our mechanic diagnosed it as a loose timing belt tensioner. We are going to take it to the dealership (our mechanic in town doesn't want to tackle it). If I find out more I will report back...maybe it can help you too.

 

[Captain Morgan]

Thx!

 

[alaskanexpy]

sounds exactly like the flex plate noise i had on my explorer. it was cracked in about 7 diff places and about to explode in the tranny.

but, it could be a totally different sound w/your expy...just going by what you said it sounds very close.

 

[JUST4FUN]

posible exhaust rattle or heat shield

+1 on this

 

[JUST4FUN]

Could be the thrust bearing in the fly wheel, it causes the fly wheel to move in and out from the motor a good quarter inch, if its going bad. Its a pain but pull your trans and check the flywheel for play, you may be able to pull the starter and check it but not for sure.

They never put a manual trans in a expy from the factory

 

[Exia]

They never put a manual trans in a expy from the factory

2000 FORD EXPEDITION Output Shaft Thrust Bearing


2000 Ford Expedition 5.4 thrust bearing - Google Search

 

[Maverick1701]

update
said I would post up when my exped was fixed (gen 3 was having issues...not the gen 1)
The spring that is with the cam/cam gear that allows the cab to variably time broke. So everything was slapping around in there and causing the motor to be out of time w/itself and created some pretty horrible noises.
Got it fixed today (took a 24hr road trip to get it done for free) and it runs GREAT!!!

Hopefully that will help someone find issues w/their ride