i have a 2000 mpv mazda and for about two years i have a loud humming noise that comes only when its cold out

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i have a 2000 mpv mazda and for about two years i have a loud humming noise that comes only when its cold out

it started not so loud and every once in awhile now it happens when its cold and i could be driving or at a stand still i have asked two machanic and they haven't been able to fix it. someone please help me . do i need to start thinkin about a new car.

2006-12-07 05:33:44 · 2 answers · asked by gee 1 in Cars & Transportation ➔ Car Makes ➔ Mazda

2 answers

This is common on the 2.5l ford motors. it is usually the bypass air control valve ( also known as idle motor) if it makes the noise & you can get under the hood & put your hand on it you will feel it vibrate.
the diaphrams get stuck usually, just replace it.

2006-12-10 03:15:45 · answer #1 · answered by JASON D 3 · 0⤊ 0⤋

Can you post more information on this problem? Idling ? rpm? Heater on? Etc?

2006-12-10 04:00:54 · answer #2 · answered by ? 4 · 0⤊ 0⤋