Whine/whistle 1800-2200 RPM

[Mariner]

This will sound strange lol but I've had a couple of whistling sounds I've nailed down over the last year. You mentioned RPM but one that I had was with the AC on and the rear vents closed, they'd whistle faintly. Drove me crazy until I found it. The other I have is a CB antenna that isn't drilled into the roof so the air runs under the cable on the roof at higher speeds and whistles faintly too.

I know those are long shots but you never know...

 

[TheDude]

Thanks for the suggestions. I checked the rear vents and they are open. No other antennas on the vehicle other than what it came with haha.

I tried to get a video yesterday but the road and wind noise prevented my cell phone from grabbing the whine.

 

[MTF]

Check your vacuum line going to the IWE.

Someone had this issue being supercharged and was complaining about a whistle, turns out the vacuum line was damaged.

 

[Bar]

FWIW, same at 2500 to 3000 rpm. Was tough to replicate in neutral, but I finally did it today. Mine started after the dealership repaired my transfer case which didn't solve my original problem. I picked up the car with this whine, the original whine in 4High, and the slip yoke chirp. I had to bring it back to fix the slip yoke, but I didn't waste my time on the other problems.

If you figure it out, let us know. Thanks.

 

[Yukon Joe]

@OrangeAddict has a similar issue as well.

@Yukon Joe
www.runraptorrun.com

 

[RedFive]

I have the same thing. It sounds like a faint dog whistle or little super charger spooling up. It only does it under light throttle. I have a K&N, so maybe it is just enough air being pulled in with the right amount of pressure to make a slight whistle.

 

[byz250f]

I have the same thing. It sounds like a faint dog whistle or little super charger spooling up. It only does it under light throttle. I have a K&N, so maybe it is just enough air being pulled in with the right amount of pressure to make a slight whistle.

Did you figure out what this issue was?

 

[RedFive]

Nope, I just ride around with a micro super charger whistle. Very annoying but haven't been able to pin it down.

 

[Ratpatator]

I have this too and I now have a engine light on for my evap I think it is a leak from a hose or component.

 

[Smokeshow60]

I have this too and I now have a engine light on for my evap I think it is a leak from a hose or component.

Hmm. I thought I had mine narrowed down to air being sucked through the radiator...