Last post on Aug 05, 2013 at 3:32 PM
You are in the Buick Century
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Buick Century, Transmission, Sedan
#25 of 31 2005 buick century transaxle harsh shifting
Jan 30, 2013 (3:19 pm)
The car will shift harshly at times, slip at times like many other Buick Centurys. The problem lies in the transaxle position sensor (on the opposite side of the throttle position sensor on the throttle valve after the air intake )
It will stick. You can either replace it, instead of all the other crap they try to sell you or pump the gas pedal a few times before you start it. best when engine is cold.
#26 of 31 Re: Buick Century transmission 2001 [juliewhitney]
Feb 06, 2013 (9:44 pm)
I have a 2000 Century that had intermittent transmission trouble. The check engine light would come and go. It would start to surge and hard shift. Sometimes would not go into 1st gear and would stay in overdrive. I did some research and found that the cars tend to have electrical shorts in the wire harness that plugs into the transmission, drivers side above the tranmission housing. There is a plug that has about 20 wires. They can break internally. You can try unplugging it and cleaning the connections. I did that and it corrected for a short period of time. Eventually it no longer worked. A new harness runs about 70 bucks. I went to a junk yard and cut one out of another Buick for $5 bucks. Was a pain to splice all of the wires, but I have driven it for 2 days with no surging, no shift problems and no check engine lights. The wires on the old plug were smashed and twisted where they go into the plug.
Try that first, I see that the fix the repair places want to do is rebuild or replace the transmission and the problem seems to come back. The real problem was the connection. Good luck and try that, it is better than replacing the transmission if it is not the problem.
#27 of 31 1995 Buick Century Transmissio Stuck
Feb 08, 2013 (6:54 pm)
1995 Buick Century 3100 v6 145,000 miles
My 95 Buick Century acts like the parking gear is stuck no matter which gear you shift it into even neutral. It feels like it shifts into gear but wont move. I had to rev the engine in neutral and drop it into drive and it popped, then I could drive it, but as soon as i shift it into reverse or park then it sticks again. I checked the fluid and it looks fine and is at the proper level.
I ran my scanner on it and it didn't show anything. Any ideas?
#28 of 31 Re: transmission? [century_2001]
Mar 18, 2013 (8:25 pm)
Need to check electrical connector at transmission on drivers side. Wires go bad. Picked up one out of a junker and spliced in. Took care of mine. That is why people who have the trans replaced are having the trouble recur.
#29 of 31 Buick Century 2000 Transmission
Apr 11, 2013 (5:28 am)
Friends replaced transmission about a year ago. Today the transmission won't shift into any gear. Dip stick is dry! Saw transmission fluid leaked out under car. (Just drove over 100 miles yesterday!) Since replaced a year ago it still whined, shifted roughly after warmed up at around 35 mph, so my question is do we replace the transmission or check for other things first? (Like wire harness gone bad, filter, transaxle position sensor, 4 solenoid switches and use seafoam transmiss. treatment with dexron VI) My son and ex are willing to go at it again!
#30 of 31 03 Century Transmission Issues
Jun 24, 2013 (12:41 pm)
Hi, I'm looking for some guidance for the issues I'm having with my Century.
I have been experiencing shuttering and slipping in first gear even after a rebuilt transmission was placed in it by a reputable shop that we have had no issues with in the past. (These problems were happening before the swap as well).
I've also experienced what seems like a lag in full traction in my transmission. I'll be in first gear speeding up, or even second gear as well, and it will feel like my car has power and it is accelerating, though slower than normal, and then a few seconds later it will feel like it catches full traction in the transmission and be back to normal. Sometimes there will be a thud or at least a noticeable noise or feeling.
When we brought the car in initially to have the transmission replaced the torque converter passed the test it had done on it. I'm wondering if this part is the issue at all?
Also, for many years I have not completely stopped when switching from R to D. I've been switching gears at 2-3 mph, but I'm curious if that has some effect on the performance of the transmission.
Any suggestions you might have as to why I'm having this problem and any possible solutions would be much appreciated!
#31 of 31 95 buick century 3.1
Aug 05, 2013 (3:32 pm)
Ok my buick has 130,000 on it and if i drive it for 20 mins or so down the highway the transmission overdrive kicks out and i lose 10 mph on the speedometer so it says im doing 50 but im really doing 60 with everybody else. I replaced the speed sensor yesterday and still the same thing. Other than that transmission shifts nice and smooth