Question about 1989 Buick Regal

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1989 Buick Regal Limited Transmission Fluid?

I want to know how much transmission fluid should be added to a 1989 Buick Regal 2.8L and how frequently it should be changed. I have been told three quarts is adequate, but I have been having problems with the car burning transmission fluid and want to know how much is really necessary and how long I can go before replacing it again. Thanks for any help you can provide.

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  • Buick Master
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I'm not sure I am following your problem.
A transmission holds 10-15 quarts including the torque converter. When you drain the fluid you are changing about 4 quarts of the full amount.
Once you fill the transmission to the full mark on the dipstick, you should not be adding more fluid unless there is a leak. Or if the vac modulator is damaged and allowing fluid to be pulled into the engine. The fluid is checked with the engine running in park.

Posted on May 09, 2013

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Posted on Jan 02, 2017

godtech
  • 51 Answers

SOURCE: Transmission is leaking toward the middle of the car

CHECK TO SEE IF YOUR TRANSMISSION PAN GASKET IS LEAKING/IF NOT CHECK ALL HOSES AND LINES/IF NOT REPLACE YOUR REAR MAIN SEAL.

Posted on Jan 17, 2009

Molson02536
  • 3854 Answers

SOURCE: fixed check engine trouble code but light with same code comes on

Your transmission problem could be related to the TPS sensor. The TPS sensor indicated to the PCM when and what gear the transmission should be in. As for the Lucas and other additives to the transmission may be doing it more harm then good, As the transmission oil is thicker, the transmission line pressure increases. The PCM try's to compensate for that by letting the converter lock up clutch to slip and the fluid retention in the solenoid to change gears stick causing it to shudder between gear shifts. Recap, Check the TPS sensor readings and the Wire Harness. Look for loose connections and corrosion that may not be giving the proper readings to the ECM. Rescan the car for any DTC codes and most transmission chop can do that for you if your going to get it serviced there anyways. Have the transmission fluid flushed and filter changed, and have them do a transmission line pressure checked, there are additives out there to keep the fluid from foaming which is ok, but changing the fluid's weigh can cause transmission failure. Good luck and hope this helps and keep me posted, be glad to help.

Posted on Jun 14, 2009

SOURCE: 1992 Buick Regal transmission fluid getting into

Your radiator is connected to the transmisiom to cool the transmission. the tank in the radiator has ruptured and transferring fluid to where it should not be. solution replace radiator. This will transfer trans fluid to cooling system and vice versa. I can not see the trans oil ending up in the engine oil sump for any reason?

Posted on Nov 16, 2010

  • 8404 Answers

SOURCE: Took a 2003 Buick Lesabre

14 quarts sounds like a lot! If it is not far, take it back immediately and have it fixed by them at no charge. If it is far, check the level again and if it is in fact as high as you say, call them and have them tow it to their shop for repairs. Do not drive this car otherwise, you will whip the fluid into foam and it will spill out of the filler tube and potentially cause a fire. Document, document, document this case.

Thanks for your visit today.

Posted on Jan 27, 2011

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