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2003 chevy trailblazer_ls
426 Posts
Discussion Starter · #1 ·
i have researched this a lot and have some idea's on what is possibly is.

at first i had the whistle noise as my rpms would go up and down, but now i can hear it when it is in idle. So it is defiantly a fluid noise or somewhere around the engine not the transmition.

i have 100k on my truck so I’m sure there can be some potential that things may be going bad.

from what i have researched the noise that people had that seemed similar to mine is that there water pump was bad.

i think i may be leaning toward that, but also i think my fan clutch is going bad, because when my climate control is on, it sounds like an awful clicking sound, but i don't know if the fan clutch could be making that whistle noise.

i wanted to see what people's solutions were to fixing a noise similar to mine
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