Car hiccups?

jetta
volkswagen

#1

Hi , i have 191k on this car. car runs well but for the past month, about once a week i"ll be driving (on the highway) and my car does a sort of “hiccup.” it seems like it is losing power but then goes right back to normal. it always happens in the same spot? i have come to the conclusion maybe it’s happening after my car is running for about 10 mins? not sure?? any thoughts?


#2

That sounds like engine “misfire”. It could be the result of fuel pressure dropping off, momentarily. Have you changed the fuel filter in modern times? Try a fresh fuel filter. Results?
It could, also, be loss of spark. How young are the sparkplugs?


#3

thanks for your reply. i will try the fuel filter. i had spark plugs replaced in december.