Question about 1991 Buick Century

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Do you have to take the engine and the tranny out when replacing the transmission on a 1991 Buick Century 3.3

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  • Buick Master
  • 5,280 Answers

No, I'm pretty sure you don't, but to be sure, register for free at autozone.com. You can list your vehicle on there, and see the manufacturer approved R&R procedure for transmission removal. I think they get their source from Chilton manuals, it appears very similar to paper manuals. On those models, I think you can pull the transaxle out separately, and put a jack under the oil pan (block of wood between), to keep the engine from sagging down too far.

Posted on Sep 26, 2015

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Posted on Jan 02, 2017

  • 636 Answers

SOURCE: 1991 Century Buick V6 starter replacement.

remove the positive battery cable from the post
remove the 3 wires from the starter and the two bolts holding the starter to the block.
reverse the procedure for installation.

Posted on Oct 07, 2009

Testimonial: "I know that there is usually only 2 bolts to remove a starter. I've identified one bolt but was not sure about the location of the other one. Thanks"

youredone82
  • 426 Answers

SOURCE: 1991 buick century window weather stripping

have you called a local dealer?

Posted on Dec 02, 2009

  • 5 Answers

SOURCE: 2001 buick century transmission problem

it could the trannie solenoid or filter.

Posted on Dec 07, 2009

roniecon
  • 6826 Answers

SOURCE: 1991 buick century wagon 3.8 v6

The crankshaft sensor is bad,or the ignition module,one of the two.

Posted on Jan 28, 2010

  • 834 Answers

SOURCE: would a 1991 chevrolet lumina transmission fit in

That is not a compatible transmission for that vehicle. The 91 transmission is either a 4T60 or a 4T60E transmission, and the 98 Century should have a 4T65E transmission.

Posted on Sep 16, 2010

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1 Answer

How to replace shift sylonoid in a 2001 Buick century


It is located in the transmission. If you have ever changed the tranny filter you may be able to do this.

Aug 09, 2014 | 2001 Buick Century

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Can the transmission from a 1991 Buick century 6 cyl be used to replace the bad transmission in a 1995 century 3.1? The 1995 has a 4spd auto. Or, worst case, would the engine and trans swap from the...


No the 95 is a 4T60E transmission. It's electronically controlled via the ecm on your vehicle. The 91 is a TH440T4.and is not electronically controlled. Transmissions are wired different and will not work correctly due to the ecm controller. Ther are plenty of 4t60e trannys. in the salvage yard as they are used in many larger gm vehicles.

Sep 02, 2011 | Buick Century Cars & Trucks

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My buick century 1991 has dignostic problem code 27


Code 27 refers to a problem with the "mid gear switch" located inside the transmission. Now I would start checking the connector going to the transmission for good clean contacts. Quick check to see if it's the ECM or the wires: disconnect connector at transmission. Using a test light, check terminal "C" and "B" for 12VDC, be sure ignition switch is "ON", engine "OFF". If yes on both, look at tranny for problem. If no on both, check wires at ECM and in between. If no on one and yes on the other, do the same. If all wires, connectors and grounds check out, replace ECM.

I am also seeing that both these codes refer to circuit that get power through the brake switch. I think I would start there, are your brake light working? Are all your fuses okay?

Keep us updated.

Jun 21, 2011 | 1991 Buick Century

2 Answers

Would a 1991 chevrolet lumina transmission fit in a 98 buick century


That is not a compatible transmission for that vehicle. The 91 transmission is either a 4T60 or a 4T60E transmission, and the 98 Century should have a 4T65E transmission.

Sep 16, 2010 | 1998 Buick Century

2 Answers

2001 buick century transmission problem


it could the trannie solenoid or filter.

Dec 07, 2009 | 2001 Buick Century

1 Answer

1991 Century Buick V6 starter replacement.


remove the positive battery cable from the post
remove the 3 wires from the starter and the two bolts holding the starter to the block.
reverse the procedure for installation.

Oct 07, 2009 | 1991 Buick Century

1 Answer

Will a 1991 Buick Century 3.3 transmission replace a 1994 3.1 Buick Century transmission?


Should be the same but look at the pan on the trans should be the same. If the pans are the same and there are the same number of bolts in each pan then you should be fine.

Oct 04, 2009 | 1991 Buick Century

1 Answer

Just want to know where to fill tranny fluid in my 1991 buick century wagen 3.3 liter motor


you fill the transmission right into where the transmission dipstick comes out of

Sep 05, 2009 | 1991 Buick Century

2 Answers

Slippy Tranny


Had the same problem. had the soiniod body changedbeginning of winter. Tranny shift Smoother but problem can back the next spring but less often then before.

Noticed that it was happening on hot day and after driving no more than an hour. Noticed that it was happening also in stop and go traffic.

Sometimes just putting the Tranny at Park and stopping the engine on a RED light fixes the problem.

I haven't gone back to the Tranny Shop.

Oct 16, 2008 | 2000 Buick Century

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