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Buick Regal Transmission Problems

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  • The transmission is leaking fluid into my engine, because nothing is visible underneath the car and I have to keep adding fluid and getting it serviced, so i replaced the pan gasket worked for 2 months then started leaking again but not at the pan up towards the motor sometimes causing white smoke to come out of my exhaust pipe. Its now having a slow take off which is how it started before, i don't know what is causing the fluid to leak and what I should get fixed?
  • custom3800custom3800 Posts: 3
    going to work,running great going around 50 mph and I lost the transmission, the only gear that I have is 1st gear, I must keep it in first to be able to drive it home, Around 5 mph, Fluid is full, no check engine light, Could this be a sensor and where is it at. Sorry if this post has already brought up, need help and new to this forrum. and help would be great. The car has around 198000 on it and still strong motor.
  • custom3800custom3800 Posts: 3
    going to work,running great going around 50 mph and I lost the transmission, the only gear that I have is 1st gear, I must keep it in first to be able to drive it home, Around 5 mph, Fluid is full, no check engine light, Could this be a sensor and where is it at. Sorry if this post has already brought up, need help and new to this forrum. and help would be great. The car has around 198000 on it and still strong motor. I have heard this could be a sensor on the tranny, anyone heard of this.
  • I have the same problem with my 1994 Buick Regal.
    Were you ever able to resolve this issue?
  • Hi Dan,

    I have the same problem in my 2001 Buick. Can you email me, mfile2000@hotmail.com with how you fixed it?

    Thanks
  • Kirstie_HKirstie_H Posts: 10,824
    It would be much more helpful if that member would post any fix right here in the Forums. Sharing it privately by email deprives others of the information.

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  • jipsterjipster Posts: 5,345
    It's okay with me.
  • So I have a 98 Regal LS and I recently have had some transmission issues. I was driving it the other day on the highway and when I stopped at a stoplight and tried to drive again it was like the tranny was missing and jumping real bad. checked the fluid and it was fine turned the car off tried driving it again and everything seemed fine. Any ideas what could cause this problem. Is there something like a shift sensor that could cause this to happen? Any information would be greatly appreciated.
  • Answering myself. I had a tune up done, primarily new wires and plugs, fuel filter as well. What I thought was a transmission miss in Overdrive, up hill, low rpm was actually the engine missing under these conditions. Down shifting, lower gear bringing up the RPMs would alway bypass the problem. So my answer was new plugs and wires. Enging miss, not transmission. Good luck everyone.
  • lyzziescharmedlyzziescharmed Posts: 1
    edited February 2011
    i bought a 99 buick regal ls two weeks ago from m local towing yard. it ran fine the first two days. the 3rd day it would shift from first to second just fine but would not shift into third well the 5th day I was driving it and in the middle of driving it, it just stopped driving I would push on the gas and nothing it would not drive at all i tried 1st 2nd 3rd and nothing I got nothing. not even reverse works. when i shift into drive i dont even here it or feel it shiftig keep in mind there is 172000 miles on it. i really dont now what to do. besides buying it for 900.00 dollars i just paid the dame tags that were 590.00 i am taped out. please tell me it something easy and that it wont cost me my first born to fix lol. i had it towed home can someone help and i check the fluids and there is fluids in it. but itt doesnt seem to be pumping the fluids.
  • 92 regal 3.8 engine 140,000. Trans wants to shift up in gear when under strain (uphill). starts to shake until I reapply gas and it shifts to lower gear and runs until nex hill. Buick recomended not to have engine flush since I don't have history.Mine since one year ago. Put in 12 oz. of Lucas trans conditioner ran 10 mil. .. a tinny bit better. any recomenditions??
  • Did you remember to remove 12 oz. of transmission fluid before adding the 12 oz of Lucas conditioner? You don't want to over fill the transmission. I know that is not likely your original problem but the Lucas may give better results if the fluid level in the transmission is correct..
  • Have you had your motor mounts changed. If the motor is not mounted it won't make a direct connection to the transmission. I ended up spending $1750 on having my transmission rebuilt only to find out it was the motor mounts which they did for free of course
  • jaycee9jaycee9 Posts: 1
    Bingo you have found the problem: The 4T65E tranny in the Buick smaller cars is problematic especially after approx 95k miles and a transmission oil change. Don't change the transmission fluid!! Something about putting a cleaner transmission oil in the tranny that causes the TPC to malfunction. One thing I have noticed is that the TPC Solenoid malfunction is definitely heat related. When you start the car in the morning it does well until the transmission fluid warms up, it then begins to misshift. I did solve the problem by installing a couple of transmission oil coolers that go in front of the radiator and connect to the radiator transmission coolant line. It took two of the small coolers to do the job at $30 each. I live in Florida and it gets hot here but so far the only time the tranny has acted up is after driving a long time in stop and go traffic. Kudos
  • luckybareluckybare Posts: 1
    mine has been fine for just a year and now it doesn't want to go into overdrive so i burn up gas like crazy its at like 2300 rpm going 55 mph and i think its my filter or something i need help
  • So I've got 200K miles and very few problems till now. After replacing the instument cluster and a few 'modules', window switch and door regulator (driver's) and exhaust system; I'm having problems with the trans. The car sat most of the summer for these little nagging repairs. The trans has always worked and shifted smoothly. However now it will not go into 4th (overdrive). The first three gears still shift smoothly. Am I looking at a 'control module' or 'relay' replacement? Or a 'computer' flaw? Please don't tell me I need a trans replacement. Any input or comments would be appreciated. Thank you.
  • If you have the other gears it is my experience that the overdrive gear is stripped they have splines on them and after a while they wear out because of the way they were manufactured and the only way to fix it is to replace the gear but the bad thing is that you had might as well just rebuild tranny it has to come out anyway to replace the gear
  • I have a Buick Regall 99 Supercharged and that is how my car started off. It has been shaking really hard when it goes from 2nd to 3rd. It has been doing this for awhile, I finally took it to the shop and they said the Torque Convertor was almost gone. So now I am having to shuck out @2,000 for parts and labor but that is because I am getting a whole new transmission, the guy at the shop said once that goes out it can mess up everything else. I hope you have better luck, we tried everything to fix it with no luck.
  • This is exactyly what my car has been doing. I took it to the shop, the guys put the computer on it and it came up the Torque Converter is out. The only thing left for me to do is to replace that but that means they have to pull the whole trans out to replace it so I am letting them just replace the whole thing. Hope this helps.
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