Bird Chirping Sound When Driving?

[robenvoy03]

I WAS DRIVING YESTERDAY WITH THE WINDOWS OPEN AND EVERY ONCE AND A WHILE IT SOUNDS LIKE A BIRD IS CHIRPING ON THE OUTSIDE OF THE TRUCK BUT WHILE DRIVING...THERE ARE NO SPECIFIC TIMES WHEN THIS HAPPENS...HAS ANYONE HEARD THIS BEFORE OR SOME NOISE LIKE IT? I HAVE AN 03 ENVOY XL........ANY IDEAS WOULD HELP

THANK YOU
ROBENVOY03:thx

[whiskey617]

Do a search on engine chirping... 99% of the time its your AC compressor engaging and disengaging. :thumbsup:

[turbomike]

Apply white grease to your hood latch.

[Fudge]

Yeah, I think I have a squirrel under my hood. Tried the 'belt dressing' and it initially went away (for like 20 secs) then came back. It hasn't left yet. Took it to the dealer and the service guy came out, sprayed some rust chek on the belt/pulley and it did the same thing; went away and then came back. I was concerned it was a bearing gone bad in one of the pulley's but the tech said it wasn't that but rather I needed a new belt. Does this sound right to you guys? I sure would like to pop a cap in that squirrel! lol.

[lhassebrock]

If it seems to happen when you are going over small bumps check your hood stops. They screw in and out to press tight against the hood. Sometimes the squeaking might be created by the hood stops rubbing against the underside of the hood. A little dab of lithium grease will cure that. If it's engine related, I don't know what to tell you...but good luck.

[Fudge]

Picked up the new serpentine belt yesterday and took the old one off last night, as per the EASY instructions found here. However the old one was shorter then the new one so I assume they gave me the wrong belt. Since I had the belt off anyhow, I did as some of the guys here suggested; spin each pulley by had, noting any squeaks or noise. All the pulleys worked fine except for the altenator pulley which made a consistent, small squeak. I'm bringing the Voy in today to replace the Idler pulley, get the correct belt, and have them replace (I hope under warranty!) the altenator. Hopefully that will put to rest that damn squirrel that's been chattering away under the hood!!

[Fudge]

Just a note: had the Voy in to the stealership today. They replaced the idler pully assembly but still made the noise. New belt put on and the noise was gone. They left the new idler pulley on and made note of the squeak from the altenator, in case it gives me grief later. So, just a belt. Guess they were right at the stealership, Ok the dealership (they earned it THIS time). Hope this helps someone else.:undecided

[03GMC]

Going in for the same thing tonight. Hope thats all mine is too. Was your squeal just until you got it warmed up? Mine is. Thanks for all the helpful tidd-bits..

[Fudge]

No, mine was all the time. Initially it wasn't as bad, just a chirp every now and again. A thing to try would be to put a little water on the belt when the engine is running; if the noise goes away it's probably your belt. Keep me posted on how you made out. Cheers.:undecided

[db131994]

I have an '05 TB and I have the chirp issue as well. It only does it under a load and not in park / idleing. So, I'm thinking it is engine related. Sometimes I get an indication of a stumble when I hear the noise, but not for sure. The post about the AC engaging / dis-engaging makes some sense with the ~minute cycle time of the sound... Any other people experience this?

[slimfast]

Mine chirps a little here and there, but I think it's the brakes or something. I get a little crazy here and there, and rough up the old TB, I think the brakes are slightly rubbing. It happened ever since I almost flipped it, but it has almost gone away with the wear of the brakes.

[quadhauler]

Maybe this will help someone. I put a waterpump on mine and then it began to squeak. Took the belt off to inspect the new pump and found the tensioner pulley made the sqeaking that I thought I was hearing. You know, without load it would be a tiny sqeak. Anyway, I had some fun issues with the pump and the thermostat housing and I replaced the tensioner for $68 in the process. Squeak was still there. So, the moral of the story is and if the belt is worn (mine was not) or gets that nasty Dexcool on it, it's gonna squeak until it gets worn clean. Silicone spray on the belt is just a temporary fix.... as in seconds.

So, if you want to know, what was my deal with the housing and the pump? Either the pump housing was tweaked a bit due the crushing of the box, or there has been a revised thermostat housing. My thermostat was recessed with a thick seal around the 'stat. The pump came with a huge o-ring that would not fit my 'stat housing as it does not a machined groove there for it. So, I had to end up using silicone along with the new t-stat seal and stat I installed on the day 2 or 3. Yes, get a t-stat while you're doing this!!!

[MAY03LT]

Silicone spray on the belt is just a temporary fix.... as in seconds.


I would consider it a diagnostic aide:)

[tad1214]

belt dressing was more geared for V-Belts and somehow it got turned into the dealership fix-it-so-we-can-get-them-out-of-the-door-i-dont-care-if-it-is-really-fixed fix.