Found some sneaky ones

LukesCougar

4th Gear Poster
Joined
Dec 27, 2023
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243
Location
Olney Illinois
Vehicle Details
1997 Thunderbird LX 4.6 Limited edtion - 1996 Cougar Xr7 4.6
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Ive had some issues awhile back, im not sure if i made a thread or talked in chatbox about them, but i had a crackling/tapping noise on cold starts only, and then another tap that would only come on with load and part throttle. (i will assume this is the belt loosening and the pulley jittering around even after it warmed up) Come to find out it is my belt tensioner and ive been worried for months that it was lower end related.

the second i put any downwards pressure on the pulley the noise went away

I also found a small leak near the radiator drain while taking pics of the suspension, so new rad incoming. Thinking about buying one of the full aluminums.

Here was the noise that that just ended up being the belt tensioner.

 
Both the tensioner pulley and idler on the 4.6 are the same part, 90mm dia.
 

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