You are here: Forums Sedans Buick LeSabre Buick LeSabre Transmission

Buick LeSabre Transmission

58 messages,  Last post on Dec 07, 2009 at 10:35 AM

You are in the Buick LeSabre Forum. Your Hosts are pat & karens

What is this discussion about? Buick LeSabre, Transmission, Sedan

Messages Page 1 of 6 1 2 3 4 5 6 Prev Next Last

Go To Msg # Search This Discussion

#2 of 58 Hesitation or "Bucking"- Trans or Engine? by Jul 31, 2006 (10:48 am)
I've got an '00 with a strange problem. At a steady speed anywhere between 40-50 MPH (about 1600/1800 RPM)the LeSabre will feel like it's got a miss, or it's trying to shift out of overdrive lockup. It will "buck" two or three times until I either speed up, of take my foot off the gas pedal. This happens about twice a day. The check engine light hasn't come on, so could this be a transmission issue? There's only 59,000 miles on it. I would appreciate any ideas and suggestions. Thanks! Replies to this message: imidazol97 (Jul 31, 2006 4:12 pm) classicbuff (Aug 10, 2006 8:57 am) leesabre (Sep 15, 2006 11:02 pm) kcwolfpack59 (Jul 31, 2006 5:27 pm) classicbuff (Aug 15, 2006 6:07 am)
#3 of 58 Re: Hesitation or "Bucking"- Trans or Engine? [] by imidazol97 Jul 31, 2006 (4:12 pm)
Replying to: unknown (Jul 31, 2006 10:48 am) Simplest explanation is always the most likely. Spark plugs or wires. You've got a 6 year old car. If it is occuring at just the minimum speed to be locked up in 4th gear on the TCC, you're feeling an engine miss.   I'd recommend AC Delco plugs, and or new wires standard equipment level-no fancy red ones from the box auto parts store with the hot rod equipment. I think I got Belden from NAPA. You can change plugs first and see if that fixes it. You might note the color and buildup on each plugs. Label them with tape when you take them out; if one's different than others might indicate other problems.   I still recommend changing wires before 100K miles. If wires break down and create higher voltages, other parts of the spark system are stressed and may fail later. Replies to this message: classicbuff (Aug 10, 2006 8:57 am) leesabre (Sep 15, 2006 11:02 pm)
#4 of 58 Re: Hesitation or "Bucking"- Trans or Engine? [] by kcwolfpack59 Jul 31, 2006 (5:27 pm)
Replying to: unknown (Jul 31, 2006 10:48 am) I agree with Imidazo. Same thing happened to mine at about 75K and 5 years. It was a wire. Threw a check engine light. I understand you need to use genuine Delco wires because some other aftermarket may not handle the voltage. I have owned many sets of OEM Delco wires on various GM cars for years, and this was the first one to go bad. Needless to say, I changed them on the other car too right after that since they were 8 years old and 90K.
#5 of 58 Re: Hesitation or "Bucking"- Trans or Engine? [imidazol97] by classicbuff Aug 10, 2006 (8:57 am)
Replying to: imidazol97 (Jul 31, 2006 4:12 pm) I'll start with the plugs, and see what happens. Could the engine miss, and not set off the check engine light? Thanks, Guys! Replies to this message: leesabre (Sep 15, 2006 11:02 pm)
#6 of 58 Re: Hesitation or "Bucking"- Trans or Engine? [] by classicbuff Aug 15, 2006 (6:07 am)
Replying to: unknown (Jul 31, 2006 10:48 am) Thanks to everyone who got back to me. Plugs and wires were the answer. The plugs looked worn, but the wires were even in worse shape. The Buick runs fine-and I was all set to go to a transmission shop! Thanks Again!
#7 of 58 Re: Hesitation or "Bucking"- Trans or Engine? [classicbuff] by leesabre Sep 15, 2006 (11:02 pm)
Replying to: classicbuff (Aug 10, 2006 8:57 am) I just had my sending unit replaced, cuz of a gas leak, ran great with the the leak, now its puttering and stomp on it hesitates, then got some power, seems like gas isn't getting there like it use to, cost 500 to fix, know new prob, go fig, plz help,ty
#8 of 58 1995 Lasabre Custom Dynoride-Trans Slips by dee41 Feb 01, 2007 (7:54 pm)
Has over 100,000 miles. Runs nice and smooth, But will slip when going from 1st into 2nd, will shift fine going from 2nd into 3rd, but will slip some more while in overdrive,or when i push the gas and reach between 50mph and 60mph,It kinda gives a feel as if the car is in neutral. when I let off the gas a little it will then go back into gear again.... Reverse works fine as well. Dose these mean my transmission is going???
#9 of 58 Buick transmission code P0742 by keithh1 Jun 05, 2007 (11:36 am)
'97 Buick LeSabre. Bucks at low speed during warm weather but not during cold weather. Throws a code (P0742). Sounds to me like the TCC solenoid. How hard is this to replace? I've done it before on the TH200-4R, but that's a RWD trannie. Is it as simple on the FWD trans? Could the bucking be unrelated? Replies to this message: imidazol97 (Jun 05, 2007 12:43 pm) duddly101 (Jun 11, 2007 5:50 pm)
#10 of 58 Re: Buick transmission code P0742 [keithh1] by imidazol97 Jun 05, 2007 (12:43 pm)
Replying to: keithh1 (Jun 05, 2007 11:36 am) Have you changed the transmission fluid? I do mine every 36K miles approx now. I do it myself and change the filter every second change.   New fluid may unstick the solenoid. It sounds like it's sticking occasionally since you don't mention it happening everytime you slow down...   I'll check my 98 service manual and see if it's an easy change while changing the fluid and filter...

Messages Page 1 of 6 1 2 3 4 5 6 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums Sedans Buick LeSabre Buick LeSabre Transmission