Results 1 to 16 of 16

Thread: 6.6 duramax chirping noise

  1. #1

    Default 6.6 duramax chirping noise

    hello all,
    has anybody had a chirping (and I swear it sounds like a bird chirp) come from the engine compartment. It almost sounds like its the turbo ....it spools up and then releases some pressure ??? It only happens when the air tempurature is above 40 degrees F. It never does this when its below 40. When I'm on the highway and it does this you can feel a slight hesitation on the truck as well. It's driving me crazy.

    Any help on this is much appreciated.
    Max

  2. #2
    Join Date
    Apr 2001
    Location
    CA
    Posts
    13,573

    Arrow

    Welcome to the Forums!

    You could have a more serious issue, but check out the simple stuff first. What you describe sounds like belt sqeak with A/C compressor engagement. Mine did it for a while until I replaced the belt and tensioner at about 90K. Now, it only chirps slightly with engine shutdown and A/C engaged.

    Even if you have the A/C off, the compressor will cycle if you have any amount of defrost selected, or are on recirc. air. This keeps the air in the cab dry, and helps to prevent glass fogging. Of course, there will be a slight power surge with A/C engagement.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

  3. #3
    Join Date
    Dec 2004
    Location
    Ontario
    Posts
    5

    Default My was chirping too!

    As in the previous post, check the easy things first. Mine was an alternator bearing going bad on the '03 I just sold.
    2007 2500 HD Classic cc/sb, Diablo Predator, 285/75R16 BFG AT/TA's, Advance cover, XM, Garmin GPS

  4. #4

    Wink

    thanks for the help......I'll explore starting there.
    Max

  5. #5
    Join Date
    Dec 2003
    Location
    washington state
    Posts
    12

    Question hello maxmybuck

    Hi I also had the chirping problemin my 2oo2 d-max and have not figured it out , I was wondering if you had any luck resolving this problem. Thanks Nordy.

  6. #6
    Join Date
    Dec 2004
    Location
    Texas
    Posts
    683

    Default

    The only time I hear those noises is when the belt gets wet. Takes a long time to stop too.
    02 2500HD LT D/A SB CC 4X4 BLACK, Westin stainless nerf bars, BW GN Hitch,Racor 60S post oem fuel filter, Oil Guard bypass engine oil Filter. All synthetic fluids. Kennedy boost valve, edge, Modified air intake,EGT & Boost digital gauge,TransferFlow combo fuel & tool box, Air Lift Suspesion Bags Rear & compressor with remote, Bilsteins front & rear, Frontier front replacement bumper.

  7. #7
    Join Date
    Dec 2003
    Location
    washington state
    Posts
    12

    Smile chirping noise

    Hello Maxmybuck
    I was wondering if you ever found out what the chirping noise in your truck was, still having the noise in my 2002 d-max. Thanks for your reply. Nordy.

  8. #8
    Join Date
    Dec 2003
    Location
    washington state
    Posts
    12

    Smile chirping noise

    Hello Maxmybuck
    I have a 2002 d-max was wondering if you found out what the chirping noise was, I still have this noise going on in my truck. Thanks would appreciate any reply. Nordy

  9. #9
    Join Date
    Mar 2001
    Location
    Smith Center, KS
    Posts
    114

    Default

    Quote Originally Posted by SoTxPollock
    The only time I hear those noises is when the belt gets wet. Takes a long time to stop too.
    My 2006 experiences the same thing (after going thru the carwash)
    ** ccole **
    Past Rides: 1978 Chevy 5.7 Dsl; 1982 C-20 6.2L Dsl; 1984 Chevy 6.2 Dsl; 1986 Suburban 6.2L Dsl; 1989 K2500 6.2L Dsl; 1994 F250 7.3L; (2) 1997 F250 7.3L; 2004 Duramax; 2005 Duramax; 2006 Duramax; 2007 Duramax; 1995 6.5 Non-Turbo; 1994 6.5 Turbo; 2001 F350 7.3L, 2005 GMC Duramax (Current)

  10. #10
    Join Date
    Mar 2007
    Location
    Pacific Northwest
    Posts
    740

    Default

    From what the majority of you posters are describing, it sounds like nothing more than a wet belt. Now on the 2001 DMAX, the belt tensioner was a pretty weak design. I have replaced plenty of those (2001). The newer vehicles don't have many belt problems unless there is debris in the belt grooves or the pulley grooves.

    Another possibilty for the chirp or whistle noise could be a blown out exhaust manifold gasket. I have replaecd/ resealed a few of those also. But most of those have been medium duty truck applications. It's still worth looking into though.

  11. #11
    Join Date
    Sep 2004
    Location
    Michigan
    Posts
    38

    Default

    My 02' does the same thing and has always done it now with 78k miles. Had the hood up and listened to the compressor clutch kick in. The noise sounds different with the hood up than when in the cab driving down the road. It is extremely annoying but it doesn't do it when I place the fan switch in the off mode. Doesn't seem to chirp at idle but becomes way more pronounced when cruising down the e-way at 2100 rpm.

    Maybe the belt is chirping when the compressor clutch gets engaged at higher rpm. Any other ideas???? Would think if the alternator bearing is going it would chirp or squeak all the time or at least when you first start the engine.

    Have replaced both the belt and the tensioner pulley to no resolve. They already tried belt dressing. It still does it.

    It never cared whether it was wet or otherwise nor did it care whether it was below or above 40 degrees. Maybe, my noise is different then the one others described but it sounds the same to me by the other descriptions.

    It's a very short bird type chirp noise and sounds like it's coming from the left side of the engine compartment while driving.

    Will ask dealer to look at it again next visit.

  12. #12
    Join Date
    Mar 2000
    Location
    Owego, NY
    Posts
    1,929

    Arrow

    My 03 was chirping the way you describe when ever the AC clutch cycled on. Turn off the Heat/AC .. no chirp... installed a new Goodyear Gatorback serpentine belt ...chirp is gone.

    Bill
    03 2500HD D/A CC/SB/4WD,OilGuard, MegaFilter,LiftPump/PreFilter, Bilsteins,RetraxRollTop,J&J Boards,Coolant Filter,AlliDeepPan,FastIdle,AllHeadLightsOn,
    98 K3500 6.5,SOLD

  13. #13
    Join Date
    Aug 2006
    Location
    Seattle
    Posts
    3

    Default

    I've had a chirp for at least a year. Seems to occur between gear shifts. To me, and to my stepson when he drives, it seems to be directly under the driver.....

    I've never really worried about it. Should I be?

  14. #14
    Join Date
    Mar 2020
    Location
    U.S. Wisconsin Waukesha
    Posts
    1

    Default Pesky Chirp

    Quote Originally Posted by papa bear View Post
    I've had a chirp for at least a year. Seems to occur between gear shifts. To me, and to my stepson when he drives, it seems to be directly under the driver.....

    I've never really worried about it. Should I be?
    I have the same noise/issue happening with my truck too. Have you found out the cause of the noise since?

  15. #15
    Join Date
    Mar 2000
    Location
    Loyal WI US
    Posts
    10,792

    Default

    Which engine series?
    Kennedy Diesel-owner
    More than just a salesman-I use and test the products that I sell on a daily basis!
    Superflow Lie Detector in house
    2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
    2005 Chev K3500SRW D/A CC Long LT(SOLD)
    2007 Chev K2500 Classic EC Short LT (Sold)
    2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.
    2016 GMC K3500SRW D/A CC short LTZ

    Custom tuning in house using EFI Live tuning software!

  16. #16
    Join Date
    May 2002
    Location
    Rogers Mn
    Posts
    140

    Default

    Mine was the tensioner bearing.
    2002 Silverado DA combo 4 whl CC.
    New longblock 138252 Miles , Sill protectors
    Husky flaps
    SS Nerf Bars , Access Cover\' Coverall mats ,Lovern smoked bug shield , Dual Power Seats ,W,T.Tinted Vent Shades
    http://www.picturetrail.com/deerhunter7

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •