Astrak Posted August 25, 2006 Report Share Posted August 25, 2006 Has anybody tried and what were the results, I used to use it in my Chrysler transmission and it made a world of difference. I was just wondering because my transmission is shifting a little rough not to mention the fluid is black but anyways I was gonna do a service on the transmission and put a bottle of seafoam in, I was just wondering if anyone had tried and what the effects were on the Cadillac transmissions. Link to comment Share on other sites More sharing options...
Ranger Posted August 25, 2006 Report Share Posted August 25, 2006 If the fluid is "black", you may need a lot more than seafoam. Personally, I'd just drain, loosen the line to the radaitor cooler and pump out that black crap, then refill and take it on a test drive ............to church ......and pray. Link to comment Share on other sites More sharing options...
adallak Posted August 25, 2006 Report Share Posted August 25, 2006 If the fluid is "black", you may need a lot more than seafoam. Personally, I'd just drain, loosen the line to the radaitor cooler and pump out that black crap, then refill and take it on a test drive ............to church ......and pray. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 25, 2006 Report Share Posted August 25, 2006 See this thread regarding seafoam....: http://caddyinfo.ipbhost.com/index.php?sho...ould+have+known 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...
Astrak Posted August 25, 2006 Author Report Share Posted August 25, 2006 Not that seafoam the hydraulic stuff they make. Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 25, 2006 Report Share Posted August 25, 2006 ok 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...
MAC Posted August 25, 2006 Report Share Posted August 25, 2006 Has anybody tried and what were the results, I used to use it in my Chrysler transmission and it made a world of difference. I was just wondering because my transmission is shifting a little rough not to mention the fluid is black but anyways I was gonna do a service on the transmission and put a bottle of seafoam in, I was just wondering if anyone had tried and what the effects were on the Cadillac transmissions. Just be careful you don't make things worse. Sometimes a transmission flush or even a simple drain of the pan can cause a worn transmission to finally completely breakdown. If you want to see if a fluid change can restore smooth shifting, I suggest you drain only about 2 to 3 quarts from the cooler hose to see what happens. If it solves the problem it may be best to leave it at that. The old fluid and whatever varnish is in the transmission may be keeping things together. Just loosen the cooler line (I believe on the driver’s side of the radiator) and start the engine making sure you keep it in park. Do not shift while draining as you may hasten the demise of your transaxle. Of course make sure you have a bucket or something to catch the fluid. Link to comment Share on other sites More sharing options...
adallak Posted August 25, 2006 Report Share Posted August 25, 2006 Has anybody tried and what were the results, I used to use it in my Chrysler transmission and it made a world of difference. I was just wondering because my transmission is shifting a little rough not to mention the fluid is black but anyways I was gonna do a service on the transmission and put a bottle of seafoam in, I was just wondering if anyone had tried and what the effects were on the Cadillac transmissions. Just be careful you don't make things worse. Sometimes a transmission flush or even a simple drain of the pan can cause a worn transmission to finally completely breakdown. If you want to see if a fluid change can restore smooth shifting, I suggest you drain only about 2 to 3 quarts from the cooler hose to see what happens. If it solves the problem it may be best to leave it at that. The old fluid and whatever varnish is in the transmission may be keeping things together. Just loosen the cooler line (I believe on the driver’s side of the radiator) and start the engine making sure you keep it in park. Do not shift while draining as you may hasten the demise of your transaxle. Of course make sure you have a bucket or something to catch the fluid. It is 4.9 engine, so the tranny cooler is on the passanger side. Disconnect the LOWER line from the end tank and direct it to a bucket (use a hose as a flexible extension). The fluid will come out very fast. You might want to disable ISC motor to avoid very high RPM at the start (read my post in Tips And Tricks section). The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
Ranger Posted August 25, 2006 Report Share Posted August 25, 2006 If the trans fluid is black as Astrak says, he needs to get it ALL out of there. If the trans fails, so be it, it was going to fail in short order anyway. Link to comment Share on other sites More sharing options...
Astrak Posted August 25, 2006 Author Report Share Posted August 25, 2006 I would imagine that the fluid being black would mean there is a lot of debris in there and that the transmission is about to go, I don't think that flushing the fluid is a bad idea personally because that will clear out all the gunk that is causing failure to happen sooner. I think that adding a bottle of seafoam which is supoosed to revive some seals and such will help, I guess I will just have to try and if the transmission goes....well that's how life goes I'll just replace it or sell the Caddy. Link to comment Share on other sites More sharing options...
MAC Posted August 25, 2006 Report Share Posted August 25, 2006 I would imagine that the fluid being black would mean there is a lot of debris in there and that the transmission is about to go, I don't think that flushing the fluid is a bad idea personally because that will clear out all the gunk that is causing failure to happen sooner. I think that adding a bottle of seafoam which is supoosed to revive some seals and such will help, I guess I will just have to try and if the transmission goes....well that's how life goes I'll just replace it or sell the Caddy. Flushing bad fluid from a trans isn't a bad idea--That is, until it no longer shifts or begins to slip. I was only suggesting the cautious approach given the circumstances. If you're willing to take a chance, go for it. However, I suggest you have a second ready just in case. If the second car isn't a Cadillac, I guess it was the risk you took. Good Luck! I can sympathize with your situation since my Eldorado's transaxle slips, especially when shifting at higher RPMs due to a defective torque converter. I've had this problem since I purchased the car with about 130K miles. It's now pushing 210K and the trans is still the same. My fluid is still red with brown tint. If I rub fluid between my fingers, I see red/brown fluid. If the transaxle finally takes a turn for the worse, I will likely replace it with a quality rebuilt along with a limited slip differential. Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 25, 2006 Report Share Posted August 25, 2006 I would imagine that the fluid being black would mean there is a lot of debris in there and that the transmission is about to go, I don't think that flushing the fluid is a bad idea personally because that will clear out all the gunk that is causing failure to happen sooner. I think that adding a bottle of seafoam which is supoosed to revive some seals and such will help, I guess I will just have to try and if the transmission goes....well that's how life goes I'll just replace it or sell the Caddy. It seems you are intent on the Seafoam and a flush as a last option. It will be interesting for us to watch your results please post them. However, if I were you, I would simply change the fluid and filter first to see if your shifting improves and leave well enough alone. Flushing the tranny could dislodge clutch material and create problems in the valve body, etc. 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...
WarrenJ Posted August 25, 2006 Report Share Posted August 25, 2006 Just be careful you don't make things worse. Sometimes a transmission flush or even a simple drain of the pan can cause a worn transmission to finally completely breakdown. We've all heard this before (it often is accompanied by a suggestion to add some sort of "treatment"), and I don't mean any disrespect to those who truly believe it, BUT somehow I have trouble giving it credence. After all, it most often comes from folk whose tranny fluid was black or whose tranny slipped/shifted poorly to begin with. It's hardly any wonder they suffered a breakdown shortly after this (possible) exercise in futility. It was (possibly/likely) inevitable. This old wives tale, if that's what it is, is often perpetuated by auto technicians. To the best of my knowledge Ponce de Leon never discovered the fountain of tranny fluid youth. I'd be interested in seeing any info from an authoratative source relating to this. Regards, Warren There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises Link to comment Share on other sites More sharing options...
Dan Posted August 25, 2006 Report Share Posted August 25, 2006 That black stuff is worn clutch material, it's not a big deal. You are just in a extreme need to change your trans fluid. I wouldn't flush it, I would just do a conventional trans oil change. Don't mess with any of the cooler lines. Just drop the trans oil pan and change the filter. also get some rags and wipe down the bottom of the pan, also clean the magnet that is at the bottom of the pan. When removing the oil pan loosen the rear bolts more than the front ones, then crack open the cover so that the trans fluid drains from the rear. Then remove the rear bolts completely to drain as much fluid as you can before removing the pan. Don't use the pan gasket that comes with the new filter, reuse your OEM one, it's 10 times better than the one that comes with the filter. When you buy trans fluid regular Dextron III works just fine. Link to comment Share on other sites More sharing options...
KHE Posted August 25, 2006 Report Share Posted August 25, 2006 Since this is a 4.9 powertrain, be sure to change the trans fluid when it is cold as there is a bimetal valve that keeps the trans fluid up in the side cover when warm/hot. Bu changine it cold, it will all flow to the pan and you'll get more of the old fluid out. I would also suggest buying a new pan gasket at the dealer - all my shop manuals state "Do not reuse the gasket" Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
MAC Posted August 25, 2006 Report Share Posted August 25, 2006 Just be careful you don't make things worse. Sometimes a transmission flush or even a simple drain of the pan can cause a worn transmission to finally completely breakdown. We've all heard this before (it often is accompanied by a suggestion to add some sort of "treatment"), and I don't mean any disrespect to those who truly believe it, BUT somehow I have trouble giving it credence. After all, it most often comes from folk whose tranny fluid was black or whose tranny slipped/shifted poorly to begin with. It's hardly any wonder they suffered a breakdown shortly after this (possible) exercise in futility. It was (possibly/likely) inevitable. This old wives tale, if that's what it is, is often perpetuated by auto technicians. To the best of my knowledge Ponce de Leon never discovered the fountain of tranny fluid youth. I'd be interested in seeing any info from an authoratative source relating to this. Regards, Warren Actually, the Guru said that flushing a worn/high mileage transmission can create problems since varnish around seals may be stripped and/or clogging may result due to circulating debris. He also warned about transmission cleaning additives. I have also read a few posts in Cadillac forums about transmission related problems occurring after flushing or changing fluid. This is why I still suggest the cautious approach by draining a few quarts and see what happens. If all is good after a week then change another couple of quarts. Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 25, 2006 Report Share Posted August 25, 2006 Its funny you say this, I have seen trannys have problems after a fluid change, its very odd... You almost think that something was done wrong what it happens... 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...
Astrak Posted August 25, 2006 Author Report Share Posted August 25, 2006 Going from my experience with the A606 42LE transmission in my Chrysler(by the way these transmissions are notorious for premature failure) I had Jiffy Lube flush it when I first bought the car at 72000 miles and this made a world of difference I no longer experienced the torque converter shiver at 40mph and it shifted smooth as ever. I continued to do this until I sold the car with 120000 miles and according to my friend who bought the car it now has 140000 and still no transmission problems. I also used seafoam after about 100000 miles and it seemed to continue to help the transmission I noticed less debris in the fluid after using the seafoam. Link to comment Share on other sites More sharing options...
WarrenJ Posted August 26, 2006 Report Share Posted August 26, 2006 Actually, the Guru said that flushing a worn/high mileage transmission can create problems since varnish around seals may be stripped and/or clogging may result due to circulating debris. He also warned about transmission cleaning additives. I have also read a few posts in Cadillac forums about transmission related problems occurring after flushing or changing fluid. This is why I still suggest the cautious approach by draining a few quarts and see what happens. If all is good after a week then change another couple of quarts. I believe our Guru was fiercely opposed to tranny flushing on the grounds that: 1) you might inherit someone else's tranny debris and 2) the "unnatural" path of the flush fluid might relocate a harmless piece of debris to a more dangerous location. I'd don't see any problem with a simple drain and refill. I'm intrigued by your your idea of a partial fluid replacement. Hmnn . . . . Regards, Warren There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises Link to comment Share on other sites More sharing options...
The Fred Posted August 26, 2006 Report Share Posted August 26, 2006 If you have never changed the fluid and you've driven a whole lot of miles (over 100), changing the fluid is a bad idea.. That is how it seems to me MerryChristmas Be a Capitalist or work for one. Work for a Capitalist or be one. MerryChristmas Link to comment Share on other sites More sharing options...
JimD Posted August 26, 2006 Report Share Posted August 26, 2006 .... I'd don't see any problem with a simple drain and refill. I'm intrigued by your your idea of a partial fluid replacement. Hmnn . . . . Regards, Warren On a 4T80-E it would be easy enough to pull (turkey baster) a quart or two out of the fill hole (with the engine running). Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
KHE Posted August 26, 2006 Report Share Posted August 26, 2006 If a transmission fails after a fluid change, it is not due to the fluid change.... it was about to fail anyway. How could clean transmission fluid cause a failure unless it was the incorrect fluid? Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
Ranger Posted August 26, 2006 Report Share Posted August 26, 2006 Well said Kevin. My sentiments exactly. Link to comment Share on other sites More sharing options...
KHE Posted August 27, 2006 Report Share Posted August 27, 2006 I changed the trans. fluid in my '97 STS today - The owner's manual stated 11 quarts for a drain and refill. I only got 8 quarts out including the side cover. The shop manual stated 8 quarts for a drain and refill so the owner's manual must be incorrect. I need to do the same job on my '96 but I'll wait for cooler weather. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
WarrenJ Posted August 27, 2006 Report Share Posted August 27, 2006 I changed the trans. fluid in my '97 STS today - The owner's manual stated 11 quarts for a drain and refill. I only got 8 quarts out including the side cover. The shop manual stated 8 quarts for a drain and refill so the owner's manual must be incorrect. I need to do the same job on my '96 but I'll wait for cooler weather. I checked the "FLUID CAPACITIES" page (0B-8) in my 1995 service manual and it states the following: - PAN & SIDE COVER: 8 QUARTS - OVERHAUL: ............12.6 QUARTS - DRY : .....................15.0 QUARTS It's past the hour(s) when I should be posting, so I'll leave it to someone else to figure it out. I expect the torque converter is involved here, but I'll be darned if I know the difference between OVERHAUL and DRY. Regards, Warren P.S. The first person who says 2.4 QUARTS gets a "noogie." There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises Link to comment Share on other sites More sharing options...
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