Last post on May 13, 2010 at 12:48 PM
You are in the Buick LaCrosse
What is this discussion about?
Buick LaCrosse, Engine, Sedan
May 08, 2010 (7:36 am)
Is it normal for a1993 buick century custom (w/3.3 L engine)which i bought 3 years ago w\17K miles on it from an 83 old lady who owned & maintained it 100% by buick. It now has 47K miles on it. Since i bought it the engine had a rough Idle (or as Buick called it (LOPING) and said it is normal for that engine after checking it w/thier diagnostics equipment. Prior to going to Buick I have had it checked by several other auto mechs. they replaced the harmonic balancer cleaned and checked fuel injectors relaced plugs etc. Engine still idles rough. Is this NORMAL???
#4 of 6 Re: prince33 [prince33]
May 08, 2010 (9:00 am)
That is, I believe, a 90 degree V-6. I'm not sure if it has a counterbalance shaft in it or not. If not, it would be normal for there to be some shaking at idle, as it is almost like a V-8 running with 2 dead cylendars. I suppose it depends on your definition of rough.
May 12, 2010 (8:35 am)
Can a counter balance shaft be installed in a 1993 buick 3.3L engine if it does not have one? How much would it cost
#6 of 6 Re: prince33 [prince33]
May 13, 2010 (12:48 pm)
No. It is integral to the design of the engine.