I drive a '99 Chevy Tracker with the 2Liter engine, a 5 speed manual transmission and 110K mi. on it. When I lift my foot from the throttle pedal in preparing to shift gears the engine takes a very long time to reduce it’s RPM. This is a problem, when up shifting, as the transmission is spinning too fast for smooth gear engagement. Does anyone have any ideas on what could be causing this?
The engine idles normally under all other circumstances. It is only slow to decelerate whenever I lift my foot from the throttle pedal. This makes up shifting very slow and/or causes the gears to sometimes grind slightly.