Buick LeSabre Hesitation

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

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

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

#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.