Solved What I thought was an exhaust rattle
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 6 of 6
HT4100 4.1, 4.5, 4.9 Discussion, Solved What I thought was an exhaust rattle in Cadillac Engine Technical Discussion; Over the past year i've had to deal with a rattle and vibration that sounded like a loose emissions component, ...
  1. #1
    2dfx's Avatar
    2dfx is offline Cadillac Owners Fanatic
    Automobile(s): 2003 Cadillac DeVille
    Join Date
    Jun 2003
    Location
    Ontario, Canada
    Age
    29
    Posts
    391

    Thumbs up Solved What I thought was an exhaust rattle

    Over the past year i've had to deal with a rattle and vibration that sounded like a loose emissions component, but never bothered to take it in. I did today and was interested to find out what was wrong:

    Turns out it was 2 problems. One a result of neglecting the other unfortunately.

    1st problem was the belt tensioner was seized and it had glazed the belt. Got the tensioner replaced along with the belt but the sound was there. Mind you it was better, but not gone.

    Alas the bad tensioner took a toll on the A/C Compressor. The noise is actually the bearing in the compressor. I was pretty pissed but also offered 3 cost options, all in CDN funds:

    -Replace the bearing for $300
    -Replace the whole AC clutch $400
    -Replace the whole compressor $900

    I'm going to go with the middle option and replace the AC clutch. At least that way the noise is eliminated and being that shes still on the original compressor (1994) i'm going to chance it with the life span shortage.

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Stoneage_Caddy's Avatar
    Stoneage_Caddy is offline Cadillac Owners 10000+ Posts
    Automobile(s): Gobi 01 Frontier/Ishi 96 Nighthawk/Gladys 94 Deville I Loved
    Join Date
    May 2003
    Location
    Undisclosed location in FL
    Posts
    14,603

    Re: Solved What I thought was an exhaust rattle

    the tensioner seized???????

    hmm , guess i beatter get mine done , its getting noisy , did you check the ilder pulley too , thats where my noise is coming from but its not seized yet

  4. #3
    2dfx's Avatar
    2dfx is offline Cadillac Owners Fanatic
    Automobile(s): 2003 Cadillac DeVille
    Join Date
    Jun 2003
    Location
    Ontario, Canada
    Age
    29
    Posts
    391

    Re: Solved What I thought was an exhaust rattle

    Quote Originally Posted by Stoneage_Caddy
    the tensioner seized???????

    hmm , guess i beatter get mine done , its getting noisy , did you check the ilder pulley too , thats where my noise is coming from but its not seized yet
    You got it. When you retracted the tensioner it would stay in that position rather than spring back. Without this the belt cannot be properly tensioned under shifts in the belt's movement. The tensioner pulley was a little sticky too.

  5. #4
    Stoneage_Caddy's Avatar
    Stoneage_Caddy is offline Cadillac Owners 10000+ Posts
    Automobile(s): Gobi 01 Frontier/Ishi 96 Nighthawk/Gladys 94 Deville I Loved
    Join Date
    May 2003
    Location
    Undisclosed location in FL
    Posts
    14,603

    Re: Solved What I thought was an exhaust rattle

    never seen a tensioner seize up like that before i ususly see the pulley on the end of it seize up from bearing failure but never the tensioner side ...wierd

  6. #5
    JNHEscher is offline Cadillac Owners Member
    Automobile(s): 1994 Cadillac Deville
    Join Date
    May 2007
    Location
    Wooldridge, MO
    Age
    31
    Posts
    12

    Re: Solved What I thought was an exhaust rattle

    Was this a consistant rattle or did it start after medium acceleration? I have a '95 Deville that has a nasty rattle but only if the engine is hot and the vehicle is in motion. It's definately coming from the engine but I can't find it.

  7. #6
    HUF's Avatar
    HUF
    HUF is offline Cadillac Owners Connoisseur
    Automobile(s): 1995 FWB 100,*** miles CURRENT. 1991 Seville 175,000 SOLD
    Join Date
    Dec 2005
    Location
    MA
    Age
    55
    Posts
    2,002

    Re: Solved What I thought was an exhaust rattle

    Quote Originally Posted by 2dfx View Post
    Over the past year i've had to deal with a rattle and vibration that sounded like a loose emissions component, but never bothered to take it in. I did today and was interested to find out what was wrong:

    Turns out it was 2 problems. One a result of neglecting the other unfortunately.

    1st problem was the belt tensioner was seized and it had glazed the belt. Got the tensioner replaced along with the belt but the sound was there. Mind you it was better, but not gone.

    Alas the bad tensioner took a toll on the A/C Compressor. The noise is actually the bearing in the compressor. I was pretty pissed but also offered 3 cost options, all in CDN funds:

    -Replace the bearing for $300
    -Replace the whole AC clutch $400
    -Replace the whole compressor $900

    I'm going to go with the middle option and replace the AC clutch. At least that way the noise is eliminated and being that shes still on the original compressor (1994) i'm going to chance it with the life span shortage.
    You can bypass the AC with a shorter belt. I have got the part numbers.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting