2004 Nissan Frontier



April, 4, 2008 AT 4:04 PM

Noises problem
2004 Nissan Frontier 4 cyl Two Wheel Drive Manual 64000 miles

Hi. After some time of sitting idle, my truck whistles like an overheated tea kettle immediately upon starting. This noise continues for about 5-10 seconds. When it is colder outside, like during the winter my truck would whistle longer up to a minute long. At times, when I am stopped at a stop light or I switch gears/accelerate I hear the whistle. Yesterday, I took my truck to Brake Masters and a mechanic examined my belts. He showed me he was looking for visible frays or small fissures on my belts and he couldn't see any. He said everything looked find and I could drive it longer. Why is my truck whistling?

P.S. I already donated $5.00 via first prompt (red exclamation point) but I don't think my question went through:
Receipt Number: 2274-5095-1821-5798

Thank you.

1 Answer



April, 5, 2008 AT 8:26 AM

Could be a vacuum leak or the idle air control motor making that noise. Try spraying around the engine with carb cleaner, if the idle changes, you have found a vacuum leak. If no leaks, I would start with the IAC

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