BodybyFisher Posted January 16, 2010 Report Share Posted January 16, 2010 Well after having the dust plate off and noticing the sound increase in decibels I think I have located the problem. All 4 of the TC nuts and I used a snake camera to inspect the bell housing and it looked clear of any sparkly metal filings. So at this point I'm assuming the torque converter is biting the dust. At this point I'll keep the old girl until I can get some time to have "fun" and pull the tranny and figure this all out once and for all... Explain what you mean. All 4 of the TC bolts are bad? Did you say that you changed this engine? Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
WinoBot_Beta Posted January 16, 2010 Author Report Share Posted January 16, 2010 Well after having the dust plate off and noticing the sound increase in decibels I think I have located the problem. All 4 of the TC nuts and I used a snake camera to inspect the bell housing and it looked clear of any sparkly metal filings. So at this point I'm assuming the torque converter is biting the dust. At this point I'll keep the old girl until I can get some time to have "fun" and pull the tranny and figure this all out once and for all... Explain what you mean. All 4 of the TC bolts are bad? Did you say that you changed this engine? I'm sorry sometimes I think faster than I type . All the TC bolts are tight is what I intended to say. And yes, the engine was swapped out about 2 years ago. I'm just going by the fact that once I removed that dust cover that the noise got much louder and the revolutions seemed to match the sound (There was a white mark of spray paint on the TC and every time it would come around it would knock). I rotated the crank 360 degrees and visually inspected the TC and flywheel for damage and they seemed fine from what I could see. Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 16, 2010 Report Share Posted January 16, 2010 Have you checked for cracks in the flywheel or loose flywheel bolts, we actually had a member with a cracked flywheel that occured after or during a tranny job.. Ill find the thread Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 16, 2010 Report Share Posted January 16, 2010 Here is the thread where the member had a cracked flywheel http://caddyinfo.ipbhost.com/index.php?showtopic=4065 Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
WinoBot_Beta Posted January 16, 2010 Author Report Share Posted January 16, 2010 Here is the thread where the member had a cracked flywheel http://caddyinfo.ipbhost.com/index.php?showtopic=4065 Thanks for the link! I'll check it out again when I go see my parents. I didn't notice any cracks in the plate. I only checked them with an open end but I guess I'll have to loosen off the exhaust so I can get a torque wrench in there and check it out a little better this time. Link to comment Share on other sites More sharing options...
WinoBot_Beta Posted January 21, 2010 Author Report Share Posted January 21, 2010 Well I figured I'd update you all on this problem I've been having. I got under the car and was unable to tighten or even back the TC bolts off. So stumped as I was I took it to my friend's dad's tranny shop and he had found that one bolt was loose but was really tight and had to use a snipe on a breaker bar to get it off. He pointed out that all the bolts were not to his satisfaction after being reused so he put some new ones in, torqued them to spec, then sent me on my way. Apparently he has done a lot of work with these cars and said that this was the first one he'd seen with this problem and that they are actually very tough drive-trains when driven and maintained properly. But long story finally short, I now have a smooth running Caddy again. Next step is a new P/S pump and she'll be silent again until I throw the Borla's on her this summer Thanks again for all the time that you all have taken to read this and the wisdom that was shared. Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 22, 2010 Report Share Posted January 22, 2010 Hey that is great!!!! Congratulations, glad we could help!!! Thanks for coming back to update us, consider becoming a supporting member, as you can see, we can save you a lot of money not to mention we can save your car!!! You were about to give up on it, look back at your post #12, I dont recall if you got the tranny fluid out, if not dont forget... Mike Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
WinoBot_Beta Posted January 23, 2010 Author Report Share Posted January 23, 2010 Haha yeah I was ready to pitch the thing, but I guess it goes to show that some things can be not as bad as they appear, or in this case sound. I have no clue why or how it caused a bit of a sporadic idle, but it is back to normal now ... And yes I picked up some new oil and filters and will swap this 120hp S-10 (that feels as if it has a 0-60 time of 5 minutes) for her tomorrow after I change the oil again. I guess the engine will be nice a clean now though haha Link to comment Share on other sites More sharing options...
wdsj Posted January 23, 2010 Report Share Posted January 23, 2010 I just listened to your sound bite. I have a 93 Sedan Deville and about a month ago it started making the same sound. It is exactly like my car sound. I do not want to get rid of the car. If anyone has ideas, keep them comming. thanks Link to comment Share on other sites More sharing options...
wdsj Posted January 23, 2010 Report Share Posted January 23, 2010 I just listened to your sound bite. I have a 93 Sedan Deville and about a month ago it started making the same sound. It is exactly like my car sound. I don't understand what corrected the problem? thanks Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 23, 2010 Report Share Posted January 23, 2010 I just listened to your sound bite. I have a 93 Sedan Deville and about a month ago it started making the same sound. It is exactly like my car sound. I don't understand what corrected the problem? thanks His torque converter to flywheel bolts were loose, he replaced the bolts and tightened them to spec Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
wdsj Posted January 24, 2010 Report Share Posted January 24, 2010 I understand. Interesting. Can't say I would have ever thought to check that. thanks Link to comment Share on other sites More sharing options...
WinoBot_Beta Posted January 24, 2010 Author Report Share Posted January 24, 2010 I understand. Interesting. Can't say I would have ever thought to check that. thanks Yeah I never thought about it either. What I did was lifted the car and supported it on stands, then pulled the dust cover off the flywheel and started it up to watch and listen to the TC and FW. My TC had a spray paint mark on it and every rotation it would knock. When I took it in, I was told that the bolts are starting to back off and that it is best to replace them as the threads could be stretched. Also, make sure you apply lock-tight to the threads first, but first confirm this is the problem you are having. Link to comment Share on other sites More sharing options...
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