Nasty grinding noise in reverse

[BOOMSHAKALAKA]

ok so I was reversing out of teh parking lot when I heard this awful noise...sounded like it was coming from teh bottom rear of teh car. It was this grinding, creaking noise that would go on and off...it would do it for a couple seconds and then go away. I checked teh bottomof teh car when I got home and nothing seemed out of place...nothing hanging from underneath...what could be teh problem? It never happened before until recently...

[BOOMSHAKALAKA]

Anybody got some theories on teh problem?

HellooooHelloooooHelloooooo

[nissanconvert]

If nothing visable and its coming from the rear underneath when reversing my guess would be the rear diff. Possibly a broken tooth rolling around in the diff causing noise? If it's due, I'd drain +refil it or drain to check for pieces and put it back in otherwise. I worked at a quick lube for a while and a surprising number vehicles had metal pieces floating around in the differentials when I changed the fluid.Just another though, could be brakes/ebrake not released all the way from rust.

[BOOMSHAKALAKA]

Thanks for teh tips

[wirelessalpha]

ditto - you (or get someone) to open it up to see if anything comes out.

[iamfrickeninsane]

maybe you simply bottomed out and scraped something, if you werent payin too much attention thats what may have happened, lol my friends mom thought something was broken in her car cuz every morning she would hear a loud bang and turns out she was running over a sewer cover in the road and didnt realize it hahaha

[shad0ws4saken]

I am having that same problem, I figured it was one of my calipers piston is stuck partially so it is causing the pads to vibrate but im not exactly sure...I was wondering if you have solved the problem and if you did what it actually was?

[BOOMSHAKALAKA]

maybe you simply bottomed out and scraped something, if you werent payin too much attention thats what may have happened, lol my friends mom thought something was broken in her car cuz every morning she would hear a loud bang and turns out she was running over a sewer cover in the road and didnt realize it hahaha

Nope I never scraped anything...roads are kinda smooth around here...and even if I come across a rough surface or anything I tend to go over it slowly like speed bumps and so forth.

I am having that same problem, I figured it was one of my calipers piston is stuck partially so it is causing the pads to vibrate but im not exactly sure...I was wondering if you have solved the problem and if you did what it actually was?

I haven't solved it...but it's weird because since I asked...most of teh noise has stopped lol...weird. One time I drove with my e-brake up...but that was a long time ago...so that couldn't be it. It's nothing serious but I will be checking it this weekend.

[shad0ws4saken]

I haven't solved it...but it's weird because since I asked...most of teh noise has stopped lol...weird. One time I drove with my e-brake up...but that was a long time ago...so that couldn't be it. It's nothing serious but I will be checking it this weekend.

k well good luck and if you find anything out let me know cause i would really hate to spend the money for a new caliper and it end up being the differential lol...thanks

[BOOMSHAKALAKA]

Well I checked it again...jacked it up and nothing underneath is hanging or seems out of place. I had my dad check it out and he thinks there might be something wrong with the drivetrain. He didn't say what exactly was wrong as he isn't sure. I'll keep you guys updated until I solve the problem.

[icex01x]

I am having that same problem, I figured it was one of my calipers piston is stuck partially so it is causing the pads to vibrate but im not exactly sure...I was wondering if you have solved the problem and if you did what it actually was?

that's what the culprit was on my coupe. jack the car up pull the wheels off and look at the pads/rotors for uneven wear. chances are you have one or both calipers stuck. mine stopped making noise in reverse when both rear calipers locked up on me at 80mph. blew the MC and destroyed all the brake hardware and lines in the rear.

[BOOMSHAKALAKA]

that's what the culprit was on my coupe. jack the car up pull the wheels off and look at the pads/rotors for uneven wear. chances are you have one or both calipers stuck. mine stopped making noise in reverse when both rear calipers locked up on me at 80mph. blew the MC and destroyed all the brake hardware and lines in the rear.

Yea I jacked it up today...my dad was wrong it wasn't the drivetrain. It was my left caliper. It was stuck. We took it out and cleaned it...fit it in properly and now it's good as new.

[icex01x]

Yea I jacked it up today...my dad was wrong it wasn't the drivetrain. It was my left caliper. It was stuck. We took it out and cleaned it...fit it in properly and now it's good as new.

awesome, wish i had done that instead of drive on the highway

[Spiker]

You just jacked it up and looked under it? Did you take ur wheel off and check ur rotors/pads. Your rotors/pads might be worn unevenly.

[BOOMSHAKALAKA]

You just jacked it up and looked under it? Did you take ur wheel off and check ur rotors/pads. Your rotors/pads might be worn unevenly.

Yea I took only the left wheel off because that's where the sound was coming from. The caliper was in need of some cleaning and it was stuck. I took it out and fixed it in properly.