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2012 Buick Regal Base 4dr Sedan

2012 Buick Regal
Trim Info:
Front Wheel Drive, 4 Door Sedan, Midsize Sedan
25 mpg city / 36 mpg hwy
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April 29, 2015, 4:56 pm

Anthony S
 

Question: do I need a new motor?

My car knocking not really bad but its noticeable its gets worse when I press on the gas , my car already idles high idk the problem I changed my idle air control part and it still idles at 2000 - 3000 rpm in park and when I start the car it goes to 1500 rpm need help?
3800 series engine


 
 



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