Rear Thumping Noise

[1994MarkVIII]

So I drove the car this morning and everything was fine. I get home and my family wanted to go to the beach so I figured id take the lincoln. We leave and when my car hit about 40 mph I hear a strange thumping noise coming from the rear. There were no vibrations or anything else besides this noise. I get home and take the car for a spin by myself and now its still making this noise. I have the coil conversion that I did about 3 months ago and brand new shocks. Any idea what this could be?

 

[topher5150]

shock mount

 

[NoLimit95]

I 2nd that....

 

[1994MarkVIII]

ok ill take a look at that today. thanks

 

[1994MarkVIII]

Would it be that they are shot or not tightened down enough which is causing the noise? Do you know the torque specs for the upper nuts?

 

[brentalan]

They are shot, guarantee it.

 

[Sapperfire]

When you replaced the rear shocks, did you replace the bushings in the body mounts?

The Old bushings must be burned out of the bracket and then replaced with the new bushings..I tried just putting the new bushings in without burning the old ones out..that method doesn't work

http://www.lincolnvscadillac.com/showthread.php?t=62937&highlight=Sapperfires&page=2

 

[NoLimit95]

Purchasing stainless steel shock mounts eliminates burning old shock bushings off the mounts. I think Staff or DLF has some. I bought mine off Jamie for $30 and they included the nuts and washers that were needed and no more clunking.

 

[Jeffintampa]

could it be the person tied up in the trunk?

 

[98lincmk7lsc]

Purchasing stainless steel shock mounts eliminates burning old shock bushings off the mounts. I think Staff or DLF has some. I bought mine off Jamie for $30 and they included the nuts and washers that were needed and no more clunking.

You're probably thinking about me...

http://www.lincolnvscadillac.com/showthread.php?t=66382

 

[1994MarkVIII]

I talked to Eddie at American Air and he said to check my tires out. I figured nothing could be wrong with them since they are almost new but it turned out that the rear passenger tire had a dimple in it on the inside of the wheel. I felt so dumb when I seen that. Went and brought it back for an exchange and the car is fine. Thanks anyway for the help. I was messing with my shocks/mounts all day lol.

 

[98lincmk7lsc]

Eddie's pretty awesome when it comes to random stuff like that.

 

[NoLimit95]

You're probably thinking about me...

http://www.lincolnvscadillac.com/showthread.php?t=66382

Yeah, it was you and you were the one making them anyway lol. I don't know why I thought Staff was the one. I won't forget it again.

 

[98lincmk7lsc]

I think Staff or DLF has some....

Well, you were partially right at least. They do both have some, but they bought them from me.

 

[Staffamerica74]

Ha i read that and thought hmm who did I buy those from... I installed them 2 days ago worked pretty good no thumping from my trunk