I had the same problem four years ago. It was a catalytic converter problem -- its innards had disintegrated and began clogging the outflow of the exhaust. My engine was choking to death. Once I had it replaced, the acceleration problem was resolved.
Make sure you get the RIGHT catalytic converter. Initial assessments by mechanics on my car seemed to indicate that I needed a $1,200 cat. But further research four weeks later showed that I needed a $600 cat for my 4-cylinder Saturn. The $1,200 cat was for the 6-cylinder version of my vehicle. Whew!
If you live in a state that does not require a catalytic converter, having it removed will also solve the acceleration problem. Good luck!
Tuesday, March 26th, 2019 AT 9:34 AM