StructureEngr Posted November 27, 2016 Share Posted November 27, 2016 Hello all. I have 1996 LS400 that is in good condition. I drain the transmission fluid every other year, like less than 30,000 miles interval. In the very last transmission fluid change, I notice the car is sluggish first fro 1st to 2nd gear. Then last week, the car is not moving after I shifted from reverse to drive; it delayed like few seconds. It has happened three times last week, only in the morning or coming back from work, when the car is cold. Is this a sign my transmission is bad? My thought is the last mechanic (not my regular) used the wrong fluid, like Dextron III. Any suggestions? Could I get a case of fluid and drain it twice in two weeks? Thank you in advance. Any help would be appreciated. I am hoping to drive the car two more years and that is it. 1 Quote Link to comment Share on other sites More sharing options...
StructureEngr Posted November 27, 2016 Author Share Posted November 27, 2016 By the way, I took it to another mechanic and they checked out the fluid level. It is pretty full to the required level. Also my friend who buys car from auctions test drove and told me there is no problem. The delayed in shift from reverse to first only happened when the car is cold. Any comments welcome. Thank you in advance. Quote Link to comment Share on other sites More sharing options...
Exhaustgases Posted November 30, 2016 Share Posted November 30, 2016 And before I even looked at this post. The first thing to mind was likely the wrong fluid added. Quote Link to comment Share on other sites More sharing options...
vissine Posted December 4, 2016 Share Posted December 4, 2016 On 11/27/2016 at 4:16 PM, StructureEngr said: Hello all. I have 1996 LS400 that is in good condition. I drain the transmission fluid every other year, like less than 30,000 miles interval. In the very last transmission fluid change, I notice the car is sluggish first fro 1st to 2nd gear. Then last week, the car is not moving after I shifted from reverse to drive; it delayed like few seconds. It has happened three times last week, only in the morning or coming back from work, when the car is cold. Is this a sign my transmission is bad? My thought is the last mechanic (not my regular) used the wrong fluid, like Dextron III. Any suggestions? Could I get a case of fluid and drain it twice in two weeks? Thank you in advance. Any help would be appreciated. I am hoping to drive the car two more years and that is it. Do you know that total transmission system is about 8-9 quarts? I don't know how you drain it, but each time you can only drain about 2 quarts in the pan. Quote Link to comment Share on other sites More sharing options...
sha4000 Posted December 6, 2016 Share Posted December 6, 2016 I've used the transmission cooler lines on the radiator to flush the fluid on my car. Quote Link to comment Share on other sites More sharing options...
billydpowell Posted December 10, 2016 Share Posted December 10, 2016 On 12/6/2016 at 4:13 PM, sha4000 said: I've used the transmission cooler lines on the radiator to flush the fluid on my car. yes, I done it the same way on mine.... Quote Link to comment Share on other sites More sharing options...
StructureEngr Posted December 19, 2016 Author Share Posted December 19, 2016 On 12/6/2016 at 4:13 PM, sha4000 said: I've used the transmission cooler lines on the radiator to flush the fluid on my car. Was busy getting a house ready on the market. Just now getting back to check. Update: I have taken to a different mechanic who checked the fluid level, to drain and fill the ATF twice so far (3 quarts to drain and fill.) Since then, the delay in shift during cold only happened one more time. I am going to drain and fill in ATF one more time and keep the car until it dies. I wonder how many more times do I need to drain and fill before the fluid is all Type IV ATF? Any idea? Quote Link to comment Share on other sites More sharing options...
sha4000 Posted December 19, 2016 Share Posted December 19, 2016 Maybe 2-3 more times. Just keep checking the color of the fluid. Quote Link to comment Share on other sites More sharing options...
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