Rossi: Death and taxes - Understanding how 'step-up in basis' works. An IRS building in a file photo. It is often said the only certainties in life are death and taxes. Thanks to estate and inheritance tax, it is not uncommon for them to occur simultaneously.
Probable Causes: An engine that hesitates, stumbles or misfires when accelerating or when it is under load, is an engine that is either sucking too much air, not getting enough fuel, or misfiring. If there are no misfire codes, a common cause of acceleration stumble is a bad throttle position sensor (TPS).
Causes of slow acceleration? Have a 1991 Dodge Daytona that is accelerating abnormally slow, and lacks power when going over hills--barely makes it up. The engine sounds and runs fine when idling in park. Fuel pump is making a constant whining noise when car is running.