On Monday, August 17, I took the car to Purrfect Auto Service because of a problem going uphill. They examined the car, replaced the fuel filter and charged me $225.82. They returned the car on Tuesday, August 18.
A drive over the Dumbarton Bridge confirmed that replacing the fuel filter did not fix the problem. However, my car was no worse than it had been on August 16.
On Wednesday, August 19, I returned the car so that they could fix the problem. On Friday, August 21, they called me to tell me that the catalytic converter needed to be replaced. They replaced the catalytic converter and charged me $251.52. I picked up the car on August 25, with the recommendation that I replace the alternator at some point.
The second repair left my car difficult to manage: Pressing the gas pedal accelerated the car erratically. During constant-speed driving, the gas pedal unexpectedly fluctuated between partial and full acceleration. Acceleration left and returned without warning. None of this behavior had occurred before August 19.
On Saturday, August 29, for the last time, I took the car for the last time. On Wednesday, September 2, they called me to tell me that they would replace the alternator, verify that it caused the problem, and would uninstall it if it had not caused the problem. Later the same day, they called to say that replacing the alternator fixed the problem. I picked up the car on Thursday, September 3, and paid $336.40.
Although the repair seemed to slightly improve the problem, replacing the alternator did not fix the problem. Driving the car at a constant speed still finds the car occasionally dropping power then returning. This automobile behavior is dangerous in traffic: sudden, unexpected acceleration could cause me to hit another car.