Question about 2004 Buick Rainier

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2004 Buick Rainier Studders

I have a 2004 Buick Rainier CXL, 6 cyl. w/35,000 miles... It has always studdered slightly when I accelerate from a dead stop. The service department changes the code in the computer, but it does not work. Anybody know if this is a problem in Buicks/GMs? Is it bad injectors or timing?

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I can't find parts for a 2004 Buick Rainier anywhere..

Posted on Feb 13, 2010

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Plugs need regapped or changed malibu did the same until i changed them.

Posted on May 14, 2008

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The oxygen sensor will not cause this issue. If the O2 sensor was bad, it would have a differant code. The engines computer is pretty good at testing the catalytic converters. GM does not want to replace one under warraty unless its bad.
The good news is that this should be covered under warraty. The catalytic converters are under factory warranty for 8 years or 80k miles. Unless the car was bought before this date in 2003, then it should be covered.
The spark plugs are good for 100k miles and do not need to be replaced at this time. I have seen them go pass this mileage and still have normal operation.
Let me know if you have any more questions on this issue.


Read more: Buick Rainier CXL P0430 Catalyst efficiency low-bank 2 - - JustAnswer http://www.justanswer.com/buick/4flyr-buick-rainier-cxl-p0430-catalyst-efficiency-low-bank.html#ixzz2IA2oyh00

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I have a 2006 Buick Rainier. When driving at lower speed and accelerating or turning the rear end seems to lock up and there is a grinding noise and jerking sensation. What can this be? We put it on


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Engine studders when accelerating from a stop


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