Re-posting in it's thread...
Driving back from Gray my car started chugging during acceleration. Figured it might be a bad batch of gas. We've been getting a lot of heavy rain and filled up (6.5 gallons) at a reputable -- but not my usual -- gas station before the drive. This morning I went to COSTCO and put in 9 gallons of their best 93 octane. The drive home was improved but not better. Went for another drive this afternoon and the chugging has definitely not gone away. Acceleration from a stop is also slower. Has trouble maintaining 55 in 5th going up a slight hill with cruise on. Slight smell of coolant, but don't seem to be using any, and the odor has been around for a few months. No one else seems to detect it.
Work done this year:
Before July, new coolant reservoir from the Fiero store and all that implies.
July, car wouldn't start. New spark plugs, coolant temp sensor/ignition, spark plug wires.
August, new tires.
BTW, cat, distributor, and heater core replaced in 2014.
Any ideas?
