Question about 1991 Buick Park Avenue

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1999 Buick Park Avenue water pump removal

1 bolt is stopping me from removing my water pump. It is hitting on the idler pulley. I cant remove the idler pulley because the motor mount is in the way. I removed all nuts,studs, and bolts from the motor mount and lowered the motor but i can't get the studs on the mount to clear the bracket. I cant get the whole mount assembly to come away from the fender cus it hits the pulleys. I know there is something i am missing. All i can do now is stare at it and hope the water pump falls off. Any help would be appreciated.

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  • bronzebackki May 10, 2009

    Are we talking about the same car. This is a 99 and the pulley has no holes in it and i am pretty sure the power steering is up near the firewall. I have searched hundreds of threads and they said the same about the holes in the power steering but none of them were 99's. I have got all bolts and nuts loose on the mount, studs are removed from motor. Basically every nut, bolt, and stud is out. The mount and bracket are just trapped. Mount wont go down cus it hits the crank pulley. This is a supercharged if that makes a difference.

    [IMGhttp://i248.photobucket.com/albums/gg162...[/IMG]


  • bronzebackki May 10, 2009
  • bronzebackki May 10, 2009

    [IMGhttp://i248.photobucket.com/albums/gg162...[/IMG]

  • bronzebackki May 10, 2009

    Mechanicm639, I can not figure out how to contact others on here so here it is. bronzebackkiller@hotmail.com
    Thanks.



  • bronzebackki May 10, 2009

    Says i am not authorized to view it?

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  • Master
  • 253 Answers

The bolt holding you up is on the bottom by the compressor, right? You Will have to have an inverted torx socket to remove the studs. Also there is a spacer behind the mount bracket, remember where it goes. You will have to pull the pully bolts and get it out of the way too. Some of those cars have plastic elbows going from the intake to the water pump, be carefull with it. Your motor may not have this but be ready to replace it if it does because it will most likley break. Good Luck.

Posted on May 10, 2009

  • Mike White
    Mike White May 10, 2009

    You did not mention it was super charged. Send me your e-mail address and I will send you a link for the GM web site with instructions and diagrams.

  • Mike White
    Mike White May 10, 2009

    Let me know if you get this.

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  • Contributor
  • 16 Answers

That is not an idler pully that is the power steering pully if you feel through the holes in the pully you will feel the 13 mm head bolts that hold the pump to the block remove those bolts the pump will drop down and you can then remove the water pump also you have to remove the studs using the inverted torx end on the stud to unscrew it then the mount will come out

Posted on May 10, 2009

  • chubby54 May 10, 2009

    ok did not realise it was super charged that does make a difference. try using a jack with a block of wood under the oil pan to lift the engine just a bit to try and take some stress off of the mount. use discression though you do not want to damage the oil pan

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Posted on Jan 02, 2017

  • 401 Answers

SOURCE: 1999 Buick Park Avenue Water Pump Removal

Hi once you have all the bolts off for the mount raise the front of the motor up till you can remove the center part of the mount
I use a floor jack and a 2x4 across the oil pan then remove the studs for the motor mount bracket now remove the bracket and now you can get the water pump out
hope this helps

Posted on May 10, 2009

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Drain cooling system.
Remove timing belt. Refer to Engine for procedure.
Remove water pump mounting bolts.
Separate pump from water inlet pipe and remove water pump.

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Remove crankshaft pulley and damper (Fig. 68).
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Install right engine mount bracket and engine mount. Refer to Engine for procedure.
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1 Answer

1999 Buick Park Avenue Water Pump Removal


Hi once you have all the bolts off for the mount raise the front of the motor up till you can remove the center part of the mount
I use a floor jack and a 2x4 across the oil pan then remove the studs for the motor mount bracket now remove the bracket and now you can get the water pump out
hope this helps

May 10, 2009 | 1999 Buick Park Avenue

1 Answer

1999 Park Avenue water pump removal


if thats got the 3800 or 3100 in it your taking out the wrong bolts!!!!!!!
your trying too remove the whole housing
you dont need too do that !!!
take off the 4- 10 mm bolts on the waterpump pully,then remove the bolts behind it i belive that there are 8 of them that takes the pump from the housing!!

May 10, 2009 | 1991 Buick Park Avenue

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