There is a whistling noise that is coming from under the hood of my Jeep. It is more noticeable on cold days. It temporarily disappears when my foot is on the accelerator or after I have been idling at a stop sign for 30 seconds. The noise starts again when I start driving.
View 6 RepliesI have recently noticed that there is a loud, high-pitched whistling sound coming from under my hood that has progressively gotten worse over the weeks. At first, it would only occur when I had my AC or heat on and would stop immediately once i turned the AC/heat off, and will also happen from time to time when I accelerate. Now, this noise is happening right when I start my car and takes a few seconds to stop.
View 4 RepliesMy Jeep makes a whistling noise in cool/cold weather (~60 degrees and below) that no mechanic has been able to diagnose let alone fix the problem. Here are the details...
-high pitched whistling (can be heard inside and outside the car - very loud) only when temps are about 60 degrees and below-after 5 minutes of the car running-only when RPMs are about 2.0 or below.
However, RPMs can be higher when it is colder out and it will still make the noise-as you push on the accelerator, the noise gradually decreases until RPMs are high enough to completely stop the noise.
When temps are around 50-60 degrees, sometimes the whistling will stop after the car has been at a complete stop for about 1-2 minutes-If you turn off the car and let it sit for 1-2 minutes, then turn it back on, usually the whistling will be gone. It will need to sit in the off position for longer the colder the temps are. This problem has been ongoing for about 4 years.
Got a tire rotation a two weeks ago on my new 2013 Kia Forte (purchased in August 2012).Now, I have a very high pitched whistling noise coming from the rear tire area. The sound happens at all speeds. The sound is the worse at very slow speeds; the sound is also very bad at very slow speeds when I touch the brakes and turn the wheel.I looked at back tires from outside the car (not underneath the car). The mechanical set-up of back tires look very different than that of the front tires. The back tires have metal parts touching each other while the front tires do not.
View 3 RepliesUsually after I run the car in manual/sport mode, I begin to hear a high-pitched 'hissing/whistling' noise coming from the engine. It sounds like a vacuum leak. It is audible while driving with the windows down.
I am having problems pin pointing the source, but it sounds like its coming from the center block. What is the right direction to the leak? It starts exactly at 1500 and cuts off at 2200 rpm (while in gear). 1500 to 3000 rpm while in park..
I have a Takeda intake installed and I re-tighten the fittings.
So I noticed when it started getting cold that my Jeep emits this extremely high pitched whistling sound and I can't figure out what's going on. I've taken it to two mechanics and both said it was a belt that needed to be replaced so I had the belt replaced and the noise persisted. I've noticed a few things about the noise, it only happens when it is approximately 30 degrees outside or lower; only while the car is idling (when I accelerate the noise goes away immediately); It only happens after I've gone above approximately 30mph; The noise will go away after I've gone through a series of idling and accelerating; and stops immediately once I turn the car off. The Jeep is almost up to 150,000 miles.
View 4 RepliesVery high pitched "whistle"(enough to give you a headache) as vehicle speed increases or fan speed increased. This will not occur on recirculate and will go away if a window or roof is opened.
View 5 RepliesCar suddenly started a high pitched whistling noise/metal on metal sound at highway speeds. It is intermittent, no noticeable pattern w/acceleration or braking. Similar sound at lower volume when the shock/spring is depressed (pushing down on that corner of the car). Louder at low speeds.
View 6 RepliesSo as I was parking my car and I accidentally stalled it. So anyway I return to the car 20 minutes later to leave and when I start it up I notice the engine is idling at 2000 rpm and is making a loud hissing noise from the drivers side on the engine (I think). When I rev the engine it is slow to come back down to the 2000 rpm idle. When I put the car in gear and drive it, it likes to stay at 2000 rpm.
The car will accelerate without me pushing the gas pedal until it reaches 2000 rpm. Also when I shut the engine off, it sputters and coughs, almost like a backfiring motorcycle but rhythmically slowing down until it finally stops (around 3 seconds or so from when I turn the key off). The check engine light is OFF and the car is still "driveable" (I got it home) and typically idles around 900 rpm I think..
I seem to have this high pitched whistling noise as I am driving at normal speeds (starts at ~40-45 mph). It seems to coming from my rear drivers side, but I'm not entirely sure. My R has about 78,xxx miles and I haven't done this 80k....
View 5 RepliesI get a noise from behind the radio of my Jeep wrangler 2003 that sounds like a vibrating spring that is hitting metal. I get it in the lower "harmonics" you get as you just shift into a lower gear. It doesn't last long and goes away as you rev up in the gear.
View 3 RepliesI Have 17400 Miles on my Wagon and After Three Weeks in the Shop I am going to pick up my Car next Monday from the Dealer. I Did not have any Warnings Just Whistling Noise which was coming from under the hood.That was weary Loud Noise. I took my car to the dealer and they told it look like a bad Engine belt. After few days they told me my transmission is bad and needs to be Completely Replaced. I Read so many different stories on this Forum about Transmission Problems and i never had any problem till now.
View 5 RepliesMy truck started making this whistling sound a few thousand miles ago. Its a high pitched squeal coming from somewhere under the hood. There doesn't seem to be any pattern or certain time when it does it. Ive read on here about an alternator problem on these trucks. Or could it be my S&B intake?
View 13 RepliesI have noticed a whistling noise coming from under the hood. When I inspected it I notices suction coming form a small hole on the rear drivers side of the valve cover. From the little information I could find this is a PCV valve of sorts that is molded into the valve cover itself. The local dealership quoted nearly 850.00 for parts and labor. I spent a little time calling around. A VW dealer in a local city said that there was not a valve molded into the valve cover, and most likely this whistling was being caused by a hole in a vacuum line somewhere else between the engine and the firewall. This small hole is located above the where the crank case ventilation hose meets the valve cover. Is my local dealer correct in that it is the PCV valve that is part of the valve cover? Is this a fairly straight forward repair that can be done in the garage, and are there any other aftermarket fixes besides purchasing a whole valve cover?
View 6 RepliesJeep jk with hemi 7.2l manual ... Symptoms of high rpm when stopping before complete stop. And high room when shifting from one gear to another (usually bit drops between shifts). Recently I noticed that this happens only when shifting above 2500 rpm. So if the shifting happens before the rpm reaching 2500 it will be smooth and normal.
View 2 RepliesI own a jeep wrangler with a 7.2 hemi engine. Manual transmission. When driving and want to stop on a traffic light. The rpm will stay at 2000 rpm until complete stop and then it goes down to 850 rpm.
View 19 RepliesI finally got a recording of this, after trying to describe it without much success. Dealer drove the car 2x and claimed they don't hear it.
Video here, turn up your sound... noise happens just as the gas is let off...
As you can hear (if you turn speakers up, recording isn't very sensitive), it's kind of a high pitched whistling sound or whining sound. Happens when coasting (foot off gas) at 60mph. In gear or neutral, same noise. Only around that speed, only when foot off the gas.
What do you think this is? Some have suggested wheel bearing but if you listen this is more of a steady high pitched noise, not a helicopter like sound.
High pitched noise when car is running at idle and when not on the gas. Whenever I accelerate it goes away. Pitch/Loudness seems to be higher with RPM's. Could be coming from front of the car.
Checked so far:
I read some other posts about this and fully disconnected my aftermarket radio. I'm pretty sure it is not a ground loop as no power to HU shouldn't still create the whistle.
What I have:
I have an EIP aftermarket street exhaust. I checked the exhaust to see about the flapper, but I don't believe I have any of the items involved - maybe I'm wrong. After some more reading it sounds like a vacuum leak as it goes away upon acceleration. I need identifying what vacuum hoses are still in place/clamped off with having an aftermarket exhaust.
I do not have a CAI, just a K&N drop in.
Having problem on mrk 6, sounds almost like a high pitched vacuum leak but I can't find it.
View 11 Replies97 Sierra K1500, 5.7 liter. High pitched whistling sound underhood in the vicinity of the throttle body. Starts after truck warms up and quiets down when accelerating. I've wiggled hoses, disconnected what I could without stalling engine, checked air lines into throttle body, checked air filter, etc. Sound does not change when I apply brakes so I don't think it's related to master cylinder. The only time it changes is when I accelerate, then only gets quiet until I come back to steady speed.
Truck has 85,000, runs great. No codes.
Just discovered that both high beams are not working. Regular lights ok. When switch to high beam both go off. I know some bulbs have two filaments, is this the case for this car? Are the bulbs burnt out or something else is wrong?
This is a 2007 Jeep Wrangler Rubicon Unlimited.