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Buick LeSabre Hesitation

8 messages,  Last post on Nov 30, 2008 at 6:14 PM

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

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#5 of 8 UPDATE by dharker Sep 03, 2007 (7:50 pm)
Well, Now the C.E. light on. I'll borrow a scanner tomorrow and take it from there. Thanks for the advise Replies to this message: imidazol97 (Sep 04, 2007 5:28 am)
#6 of 8 Re: UPDATE [dharker] by imidazol97 Sep 04, 2007 (5:28 am)
Replying to: dharker (Sep 03, 2007 7:50 pm) I'll bet on plugs AND wires. Use OEM wires from AC or NAPA. Don't use fancy wires from the box stores in the pretty packages, etc. I did that one time.   Stick with the AC plugs recommended by the book. It may be a different number than the originals, if taht's what's still in there.
#7 of 8 buic problem with o2 sensor by saucemoney Mar 10, 2008 (3:10 pm)
i have a 1989 lesabre and i put a scanner on it and it gave me code 44 that says lean exhaust indication oxygen sensor voltage stays low after one or two minutes of engine run what does this mean should i change the oxygen sensor
#8 of 8 small skip by JEanes Nov 30, 2008 (6:14 pm)
I don't see a section for Riviera so I will try here. I have a '97, 3.8 S/Charged. Problem, small skip or "bump" after warm up and mostly after shifting into drive/overdrive. RPM's go up/down 100/200, changed plugs(AC Delco) and (box store wires) . Problem got some better but not gone totally. Tried changing 1 of the power packs and then got a mis-fire code on #3. Went back to orinal p-pack. I also have a bit of a problem with throttle responce. On a grade, I have a bit of lugging, press down on the pedal and have to push about 3/4" and then it jumps to 2300 or so RPM's and shifts into another gear and moves on.

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