Could be many reasons but it may be time for a good tune up.
to much oil or spark plug is bad
Fuel Pump
Chug is a verb.
the answer is chug chug with me
Sounds like it is time for a complete tune-up.
The Little Engine that Could.
What do you mean by Chug... like on highways does it kick back at a certain speed, if so it could be the TPS... a dead spark could be a bad headgaskets, wires, plugs, or coil... a clogging cat converter can even make it chug if its starting to clog, and if theres no air flowing threw the cat and exhaust the car can chug...
Chug-a-Lug was created in 1964-08.
My 1994 Nissan maxima has never chugged in any situation. But such chugging can probably happen with any car if its engine's air governing valve is malfunctioning.
As much sea as a sea slug could chug if a sea slug could chug sea.
You don't, a Chug is a mixed breed and not recognised by the Kennel Club.
Chug is a one syllable word with three phonemes: ch/u/g.