1999 Buick Regal Q&A
1999 Buick Regal Question: Buick regal 1999 has 60,000 miles and hesitates while driving as I accelerate.
scan test for codes - goodguy
if it shifts good change fuel filter and get out and drive that buick 60000 miles on a 99 you might have old gas - tdtoolbox
it is the mass air flow sensor. Just had this problem and that fixed it. the part cost about $125.00 - bigc23jc