Question about 1999 Buick Regal

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Rear main leak seal

1999 regal rear main seal do I have to pull the motor. and is it two or one.Please help

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  • Buick Master
  • 5,252 Answers

It's a one piece seal, and easy to install, but you will either have to pull the engine or drop the transaxle to get to it.

Posted on May 08, 2013

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  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 1999 buick regal. driver window doesnt work and

It sounds like the rear window problem is the regulator which is cable driven and the motor attaches too. check and see if your cable is binding up or if the wheels on the track are broken. the front window could be a bad switch or the module you need to test and see if you have power to the front window motor. if you do have power it could also possibly be the motor try to jump power and see if it goes up or down if it does then the motor is good.

Posted on Feb 23, 2009

  • 92 Answers

SOURCE: oil leak buick 350; 1980 LeSabre

No. Two piece seal.

Posted on Sep 27, 2009

emissionwiz
  • 75189 Answers

SOURCE: I have a 1983 buick regal limited that is leaking

GM never uses exhaust manifold gaskets, it is a machined fit. The rear main may be two piece in this year, it depends on what engine the car has, you never say, if so you must remove the oil pan. Also if it is a one piece you need the installation tool to install the seal, if you don't do it right it will likely leak even worse.

Posted on Feb 14, 2012

hepcars
  • 1249 Answers

SOURCE: How do I tell if my rear main seal is leaking in

1. Are you losing oil? Have you been told this seal is leaking? This seal is located between the engine and transmission connection. This seal will be soaken wet with oil if failing. Your motor is probably the GM 3800 V-6...this motor is not known for excessive rear seal problems. Hope this helps.

Posted on Mar 19, 2012

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Nothing will really fix it other than new parts.  It's not bad job, just time consuming.  Need a way to hold tranny up while pulling parts.  Have a chilton or haynes manual.
Basically though, you need to remove transmission or be able to move it back far enough... remove flywheel from crankshaft end... unbolt and remove rear main seal retainer... replace seal and gasket... reverse procedure.
James Mac

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First is it a front seal ,or rear main seal,(front seal,being were you see the pulleys and fan belts,,you have to look at the bottom pulley,follow the shaft to the motor,where the shaft goes into the motor is the front seal,the pulley and everthing behind it has to come out then you pull out the seal,auto zone actually has free tool rental that you can pull the seal,and a tool to put it back in,if a rear main seal its where the shaft from the transmission meets the back of the motor,youll have to pull the trannsmission back,check where you see the oil leek from,the front seal you can do if mechanically inclined,but if its the rear you should take to a mechanic,if this helps please give me a fix ya vote

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Front Main Seal is blown on the Transmission


You have to remove the transmission, remove the torque converter to access the seal. Most likely the bushing behind the seal is worn out allowing fluid to leak past the seal. After the trans. is out, take it to a trans. shop. It requires a special tool to change the bushing. Seems like a bunch of work for $10.00 in parts. The rear main seal requires pulling the pan to access it. When the trans. is out, this is the time to replace the rear main seal on the engine.

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