2007 Mazda Mazda3 vibrating at idle

mazda
mazda3

#1

my 07 mazda 3 5 speed vibrates when at idle. Sometimes it even feels like it will stall out. What could be the issue?


#2

Is the check engine light on? How many miles on the car? What transmission type?


#3

5 speed, 250,000 miles, no check engine. car ran perfectly up til about 3 months ago. still runs fine once it’s underway. getting good gas mileage. oil changed every 5,000 miles.


#4

Clean the throttle body.

Check for vacuum leaks (cracked hoses).


#5

The charcoal canister purge valve is a common failure on this car. It sticks open and causes a rough idle.