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Thread: Steering related helicopter noise from front end

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2008-01-18 13:15:44
Steering related helicopter noise from front end
The best way I can describe this noise is a helicopter's blades turning while the helicopter is still on the ground. Its a rhythic sound of the blades cutting the air. This sound clearly is related to steering and speed. The sound is noticeable at any speed above 40mph and really distinct when I turn the steering wheel to the right. It is NOT related to the engine's RPMs. I put the car in neutral and cruise and as the car slows down, the rhythmic sound slows down. And as I turn the steering wheel left and right gently making the car veer left and right several times, the sound goes away when I steer left and comes back full force when I steer right.

Could this be wheel bearing or CV joints, or something else??? I appreciate any feedback.

2008-01-18 13:23:40
Wheel bearing...
2008-01-18 13:31:51
I'd vote to check the front left wheel bearing.
Jack the car and spin the wheel by hand, as fast as you can. See if you can hear the same noise, but it won't be anywhere near as loud or the same pitch due to the slower wheel speed.
Grab the wheel each side and try to rock it to see if there is any play (it helps to have someone in the car holding the steering wheel firmly as you need to eliminate the force you put in transferring to the steering wheel), and also try it top to bottom.
If you find nothing at the front, do check the back wheels. Noises are a nightmare to isolate the source of
2008-01-18 14:35:56
My vote is for a bad CV joint. Bearings usually make a growling or whining noise. Definitely axle related since it varies with vehicle speed and not engine speed.
Either way, stop driving it. It is getting ready to fail big time.
2008-01-18 14:42:00
Its a CV axle or wheel bearing.

I would go for CV axle as I have fixed a few of these problems and they do sound like you discribe them where a wheel bearing sound more like a constant hum
2008-01-18 14:45:11
I went through the same process you are going through. I had a strange noise when I turned right. I still to this day have no idea what it was after I put everything back together after changing axles, motor mounts, installing the turbo, changing the head it just was gone when everything was back together. May have been the axle but I doubt it they usually make a clicking. Could even be just a loose bolt rubbing on the steering rack when you turn or something simple.
2008-01-19 00:34:57
only thing that spins on susp to make that helicopter nois is the wheels which could be wheel bearings, bad brakes
2008-01-19 00:45:00
reposting same **** is gay.
2008-01-19 01:39:52
Do the tires have an even wear pattern? I've heard loud noises from tires getting extremely choppy wear
2008-01-19 01:58:30
Top 16 reasons for the "HELICOPTER NOISE"!
It's a real helicopter following you around, man; put on your aluminum foil whirly-bird-beanie immediately and stop accepting cell calls! Better yet, ditch the car and run for your life!

No... seriously, here's the countdown to diagnosis of "THE HELICOPTER NOISE":

1) First off, "IF" your motor mounts are really bad, they can distress a bunch of stuff which spins under there. They love to bind and break stuff, while you corner at 70, around the off ramp from hell.

2) If your steering controls are bent, worn, or binding, ^^^, they can cause a grumble or two and bearing destruction. You can roll it down a hill in neutral and tell if it's the steady grind mentioned above.

3) Bad C/V joints tend to rumble when they are dry, especially the outer race. It will cause bump steer and add to the bending of the steering controls, if it is shot. If the inners are gone, you are really going to be surprised when you open the boot, yanking it out of the trans side. Crumbs.

4) Lower Ball Joints will eat the CV joint and so the damage may be compound. The rubber axle boot is flopping around the axle. (Not likely. The rubber boots are thick, when they break they usually don't disintegrate or fly apart).

5) Axle Nut is loose. This is a doozy. Loud helicopter noise! Your tire is wobbling around like clown tires!

6) The $uper cheap drilled and slotted disks you bought off eBay got warped to hell from hard braking and splashing through ONE big puddle, so now your disks are warped like your sister's BeeGee's album, after you left it on the stove for ten minutes.

7) The small plastic surround over the wheel well broke free and is bound up under the transmission, where it co-incidentally covers the driver's side axle.

8) Something you ran over is caught by the trunk or is sticking out of the vent flapper and digging into your bulging clown tires, shot from slamming curbs and running over the kids bike, last week.

9) When you tried to yank the replacement drive axle, last time you changed your CV, you decided to use your pry bar to pull it out one time and bent the seal around your Transmission side seal, which is now mutilated and grinding the seat of the transmission case or the seal.

10) The carrier bushing on the passenger side is rubbing the hell out of the drive axle, which is now badly crumbling and will fall out in bits, when you take it out of the spindle.:o

11) It is entirely possible the weights on your axles are flying around, as happens when the rubber decays or the bands break, allowing the weight to scramble around the axle.

12) Someone tied a length of rope with a few nuts around your axles just to make you freak out. Been there, done that.

13) Your brake bracket was never tightened properly or the bolts just snapped and now your caliper is hanging on by one bolt.

14) Your caliper piston stuck months ago and now it has worn out one side of the pads uneven. Major grinding noises will be in your future.

15) Your old rusted E-brake cable has broken free, your drum piston shot out one side or another, the spring pins are shot, so now chunks of rear brake parts are digging into your brake drum, every other spin around the axle.

16) Your wheels are bent and hitting your springs from side-swiping the curb, nearly flipping the car, when you tried to park your car like that really cool commercial!

17) Yes that was a DEER! Now your carrying carrion and it's reaching escape velocity.

And the last possible excuse for helicopter noises is...

18) Your Big Brake conversion, included stainless brake lines, which are now rubbing the inside of your tires. You didn't realize the lines need room to move and to be zip tied in place; just right. Unfortunately, you will be blowing brake fluid all over your tires, as the reservoir runs out once you cut through the stainless.

I'm voting for number 18. That's what my helicopter noise was.

Bolted up me Big Brakes and drove it like hell all day, even though it sounded like a helicopter. Figured I caught a road kill, plastic shopping bag or something off the road, around the axle. LOL

(The SS B-lines really should come with zip ties and a "hey stupid warning" in the kit).

Thanks for shipping me those emergency Stainless Teflon brake lines GREG V!
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