- Buick Ownership
I have a 92 Lesabre with about 58k miles on it. Usually it's a good car, but today it idled very hard when I started it up. When I put the car in gear, it would not shift out of first. However after a minute or so of driving, the idle returned to normal and the shifting started working again. If the car sits at idle for a bit, like at a long stoplight, I can hear the RPMs begin to increase. Not sure where to start looking with this. TPS and MAF are both new parts, and both are AC Delco.