Noise when car accelerates

This could be a number of things. Given that it is a Nissan. My first guess would be to check the exhaust covers underneath to make sure they are secure. It is very common for these to rust loose and rattle.

If you can attach it here that is fine, post to YouTube and paste the link here.

Ok, yea the to me sounds like the exhaust covers underneath the car. You can crawl under when cold and beat around on the exhaust with a rubber mallet or the side of your fist to duplicate and pin point it. To fix it you can either remove the cover or get large worm clamps like you use on a radiator hose to clamp all the way around to secure from rattling.

DIFFERENT (PROBABLY BETTER LOOKING) FELLER!

YOU DON'T RECKON IT'S THAT BIG WAD OF KEY RING STUFF?

I WATCHED IT BOUNCE AROUND AND MAKE RACKET IN THE VIDEO

I ONCE HAD A "DING. DING. DING DING" REPETITIVE SOUND AT MY DASH, DROVE--ME--CRAZY!

ME AND MY JEEPS ARE "ONE", I KNOW EVERY NORMAL SOUND, AND QUICKLY GRASP ANY ABNORMAL SOUND AND INVESTIGATE (SOMETIMES TOO FULLY) I'VE BEEN DRIVING CJs, SINCE I WAS ALLOWED ON THE ASPHALT BACK IN 1981 (HAD 6 CJ-5s AND ONE WILLYS TOTAL) THESE HAVE BEEN MY PRIMARY TRANSPORTATION,

THREE WEEKS AFTER HEARING/ LOOKING FOR THIS SOUND, I HAD A FRIEND WAS RIDING WITH ME, I TOLD HIM ABOUT THE "DRIVING ME CRAZY DINGING". (HE COULD TELL IT REALLY BOTHERED ME BAD!)

ONCE HE TUNED INTO IT, HE SAID IT SOUNDED LIKE SOMEBODY RINGING THE SALVATION ARMY BELL IN A DISTANCE

AFTER A MINUTE OF HIM LOOKING THINGS OVER, HE DISCOVERED THE "BULLET" HAD FALLEN OUT OF MY "INERT" KEY CHAIN RIFLE CARTRIDGE. AS I DROVE, THE EMPTY CASING TAPPED AGAINST MY KEYS. THIS WAS THE "TERRIBLE, MY JEEP IS FALLING APART SOUND" INSIDE OF MY JEEP.

WELL, SINCE THEN, I HAVE ELIMINATED THE NEED FOR A KEY IN MY CJ-5 (I HATE TOTIN' KEYS (OR LOSING/ LOOKING FOR THEM) I NOW HAVE TOGGLE SWITCHES TO START/ RUN IT. I DO HAVE A HIDDEN "MASTER SECURITY/ SWITCH" THAT KILLS THE WHOLE SYSTEM, SHOULD I BE IN A NOT SO SECURE AREA.

THE MEDIC