audioguy99 Posted January 28, 2005 Report Share Posted January 28, 2005 How often should the transmission be drained and the scavenger filters replaced? I bought the kit with the 2 filters and pan gasket for my 95 SLS and plan on undertaking it this weekend. I have the service manual with the proper bolt pattern and instructions, but any insider tips would be great Is it something a fairly mechanically inclined person would still want to avoid at the risk of messing up something? Thanks! Link to comment Share on other sites More sharing options...
Mark Grek Posted January 28, 2005 Report Share Posted January 28, 2005 How often should the transmission be drained and the scavenger filters replaced? I bought the kit with the 2 filters and pan gasket for my 95 SLS and plan on undertaking it this weekend. I have the service manual with the proper bolt pattern and instructions, but any insider tips would be great Is it something a fairly mechanically inclined person would still want to avoid at the risk of messing up something? Thanks! Personally, I do mine every 50,000 miles. Although I also have a 95 SLS with only 60,000 miles on it, changed my fluid without changing screens at about 45,000 miles, but then about 15,000 miles later my A& B shift solenoids blew inside the valve body, so I had to drain again but this time I changed both screens and also drained the exces fluid from the side drain. I also changed the original pan gasket to the one that came with kit, much better as it does not look like any kind of leaking going on. A lot of people recomend just using the same gasket, and you can but I wouldn't. You will see what I mean when you see it. You may just want to wait until your solenoid goes if it hasn't already. Link to comment Share on other sites More sharing options...
RJSUS Posted January 29, 2005 Report Share Posted January 29, 2005 you used the word FLUSH in title...ouch never flush.....that's asking for big trouble Link to comment Share on other sites More sharing options...
navion Posted January 29, 2005 Report Share Posted January 29, 2005 Hi Audioguy99, Make sure that you remove the 1/8" plug to drain the oil in the side cover. (Then remember to put it back before you put the pan back on. ) Also, if your shift solenoids have not been changed, this would be the time to do it, (Or have it done.) The shift solenoid change is a little involved, so if you aren't comfortable with dropping the valve body, then I would take it to a shop that you trust to do work like that. Whatever you do, don't fall for the ("O myGod, you just got here in time. Look at this pile of debris in your pan!) trick. A small pile of debris is normal in these pans. As long as the trans is doing fine, with no codes and the fluid dosen't have a burnt smell, then I wouldn't worry about the debris. Dishonest shops have used the pile of debris to sell people trans overhauls when they didn't need them for a long time. Anyway, I learned about the solenoid problem the hard way, while my wife was comming home from work. She was not pleased, & I thought that the trans had gone out for sure. (This board saved me a BUNCH of money that day!!) Second gear or reverse ONLY!! & RJSUS has it right, DON'T LET ANYONE TALK YOU INTO A FLUSH!! That is just asking for trouble!! Anyway Good luck, Britt Britt Link to comment Share on other sites More sharing options...
audioguy99 Posted January 29, 2005 Author Report Share Posted January 29, 2005 Sorry, the name's Jonathan. Usually include it. I had the tranny rebuilt around 123000. Now I have 167000. The work order says they did the filters, epc solenoid, shift solenoids, pwm switch, torq convertor, among other things. I was just going to do a standard maint. job. That brings me to another thing. I've read the other posts on the "check engine" light coming on for code PO39. Mine comes on at times too. If the tranny was rebuilt then why would that still come on? Is replacing the PCM Prom just an electronic fix that ignores the problem? Maybe this is another post altogether. Link to comment Share on other sites More sharing options...
Mark Grek Posted January 29, 2005 Report Share Posted January 29, 2005 Sorry, the name's Jonathan. Usually include it. I had the tranny rebuilt around 123000. Now I have 167000. The work order says they did the filters, epc solenoid, shift solenoids, pwm switch, torq convertor, among other things. I was just going to do a standard maint. job. That brings me to another thing. I've read the other posts on the "check engine" light coming on for code PO39. Mine comes on at times too. If the tranny was rebuilt then why would that still come on? Is replacing the PCM Prom just an electronic fix that ignores the problem? Maybe this is another post altogether. I get this code maybe once a year also, Yes there is a PCM fix for it. It never causes any problems so I just ignore it. Link to comment Share on other sites More sharing options...
Mark Grek Posted January 29, 2005 Report Share Posted January 29, 2005 Sorry, the name's Jonathan. Usually include it. I had the tranny rebuilt around 123000. Now I have 167000. The work order says they did the filters, epc solenoid, shift solenoids, pwm switch, torq convertor, among other things. I was just going to do a standard maint. job. That brings me to another thing. I've read the other posts on the "check engine" light coming on for code PO39. Mine comes on at times too. If the tranny was rebuilt then why would that still come on? Is replacing the PCM Prom just an electronic fix that ignores the problem? Maybe this is another post altogether. I get this code maybe once a year also, Yes there is a PCM fix for it. It never causes any problems so I just ignore it. Link to comment Share on other sites More sharing options...
tjtjwdad Posted January 31, 2005 Report Share Posted January 31, 2005 Other than the potential of cross contanimation, is it bad to flush a transmission and/or a cooling system. The reason I ask, is the couple of three places I've inquired about having this done (including dealers) flush these items. I'm beginning to wonder if anybody drains them anymore. Jim Link to comment Share on other sites More sharing options...
Scotty Posted January 31, 2005 Report Share Posted January 31, 2005 Other than the potential of cross contanimation, is it bad to flush a transmission and/or a cooling system. The reason I ask, is the couple of three places I've inquired about having this done (including dealers) flush these items. I'm beginning to wonder if anybody drains them anymore. Jim I would never have my tranny flushed, yes the problem is contamination from the prior car they flushed, a simple fluid and filter change is the way to go...don't let anyone tell you any different. Early on sailors navigated by the stars at night and the North star became the symbol for finding ones way home. Once you know where the Northstar is you can point your ship in the right direction to get home. So the star became a symbol for finding ones way home or more symbolically even finding ones path in life. Link to comment Share on other sites More sharing options...
navion Posted January 31, 2005 Report Share Posted January 31, 2005 Hi Johnathan, I would RUN as fast as I could from anyone that is trying to sell you a "flush". I have NEVER heard of a good outcome following a "flush". Even if they tell you that their flush machine has "new" fluid and XXX micron filtration. I think that it is a terrible idea and complete waste of money. Don't let them talk you into a "complete" fluid change. These folks drill two holes in the torque convertor to drain the fluid out and then use self sealing "POP' rivets to plug them back up. I can invision some doofus drilling in too far and damaging the vanes, leaving drill shavings in the convertor, rivets leaking and on and on. These transmissions are designed to operate without flushing for many miles. I have over 300,000 miles on my suburban and it is still going. All I ever do is change the "filter" and fluid every 50,000 miles. Your SLS has a "transaxle oil life indicator" on the DIC. I would change the fluid and "filters" and reset the transaxle oil life indicator and motor on! Good Luck, Britt Britt Link to comment Share on other sites More sharing options...
Scotty Posted January 31, 2005 Report Share Posted January 31, 2005 To further support navion, if you have every had a tranny blow and took off the pan you realize that clutch material sticks to everything, like oily wet hair, I think that type of material would be hard to eliminate from a machine that just flushed a tranny with trashed clutch packs.... Early on sailors navigated by the stars at night and the North star became the symbol for finding ones way home. Once you know where the Northstar is you can point your ship in the right direction to get home. So the star became a symbol for finding ones way home or more symbolically even finding ones path in life. Link to comment Share on other sites More sharing options...
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