2000 Buick LeSabre Q&A

2000 Buick LeSabre Question: Why does my engine shake as I accelerate?

2000 buick lesabre limited and ive had a tune up done, mass sensor, temp sensor, just had a new convertor put on yesterday and it still shakes viciously wen I pull off or excelerate, I can not figure this out. Somebody help me -
Answer 1
any engine light on?i have seen this problem due to broken or bad engine mounts.. -
Comment 1
Yes, but tht may be because they did not erase the code after the convertor was put on! Could a crankshaft position sensor be a possible reason? -
Answer 2
may not be engine. possible issue in drive links. have your drive train inspected. -
Answer 3
Ignition misfire, yes i read "tune up". -
Comment 1
Thts possible cause after I got the convertor put on they said I need a tune up, but I had 1 done last month -