(STILL not correct- 2nd attempt, 3rd tomorrow), there's been a change.

Here's the deal. While driving and shifting from 1st to 2nd, at 2850rpm, a distinct grunt (or HUMMMM was heard). It lasted a very short time (less than a second) and was NOT reproduceable through any other gear or speed.

Today, while having the car aligned, because the shop could not get the toe and camber to where I wanted it (specs provided here), I asked them to loosen the "cradle" and shift it opposite of where they had the ball joints maxed out (ball joint/control arm connections were pushed as far to the right as possible). So, sub-frame was shifted 1/4" to the left (driver's side). Car is still not driving straight and steering wheel is not at 12 o'clock, but that's another story.

Now, when driving, I can hear the "honk" (it's more of a HMMMMmm (and can be felt ever-so-slightly in the steering wheel)) in 1st at 2500rpm, then in 2nd from 2500-3400rpm AND from 4500-5000rpm. AND, it's also the same in 3rd at 2500.

Obviously the shifting of the sub-frame has brought some piece of thin (tinny) metal closer to some other thicker piece of metal (the car) and as the engine/transmission sing through the revolutions and gears, a harmonic frequency is being re-produced through this area.

This sound cannot be reproduced when the car is parked (transmission not engaged), so it's only heard while moving.

It sounds like it's coming from a point forward of where the driver sits, but not exactly sure.

So, LONG post (sorry), but short question: ANYONE ever have this, hear of it, OR have an idea of where I can look to try to remove this?

May not be irritating to you (if you had it), but I'd rather not listen to it.

TIA

 

Get underneath and look for signs of rubbing at the axle flanges/CV boots?

 

Will do (and thanks for the idea). Shifting- tried to call, but no joy. We still on for the 9th?

 

9 December we are!

 

could be a DV problem as you would only notice that under a load, not at idle or revving the motor. Not actually hearing it makes it a tough call here...

Have you checked all of your exhaust hangers?

 

Check the heat shield by the downpipe by the ps rack

 

this car, so don't need any more issues.

Thanks for the insight.

 

Again, I can even feel the vibration of the "huhhh" through the steering wheel (though more pronounced in 2nd and third).

I did, however, find the shop failed to connect the belly pan to the wheel well and the sound I am hearing IS a vibration of some sort. Am doing an engine flush today, so when the car is on the ramps, I'll re-connect and check the underside of the car very carefully.

Thanks.

 

but I hear it more often (in neutral and other gears) than you. I've chased it for years and never have found it.

Maybe I will get the subframe alignment checked.