[McNateMc]

I have a 96 stand. cab 4 whell drive. while driving above 20mph when I let off the gas I get a loud matlic rattling sound but soon as I steep on the gas again it goes away untill I let off the gas again. Im pretty suer something is loose cant fig out what it is though.

 

[jtmiyake]

It has been a while but I think I had a similar sound. My heat shield on the exhaust header had cracked. The location where it cracked was just behind the engine. I just tapped around with a steel rod till I found where it was loose and then bent it back.

 

[McNateMc]

Ill check that out. If thats the case is their any probs with removeing the heatsheild?

 

[RollTide4x4]

I had the exact problem with my exhaust as well.

 

[sqwirlytaco]

another thing to check is your cat. I had a cat go bad on my old 4runner, and it sounded kinda like marbles in a coffe can.

-ryan

 

[scottnmos]

My 2001 did something like that and turned out I just had to grease the carrier bearing. You might want to check that out before you start replacing stuff....
-Scott

 

[KStacoma]

Again, the cat could be bad if it sounds like it's coming from down there. Mine sounds like someone has a can full of bb's and they're shaking them around when i let off the gas at certain speeds as well.

 

[akshunj]

I have a 96 stand. cab 4 whell drive. while driving above 20mph when I let off the gas I get a loud matlic rattling sound but soon as I steep on the gas again it goes away untill I let off the gas again. Im pretty suer something is loose cant fig out what it is though.

Rear u joint. I've replaced 7 so far and I know exactly what your describing. That it happens when you let off the gas is the same exact symptom I always experience. Try greasing it at first and see if it goes away for a few miles. It will probably come back shortly after being greased.