ok guys hoping you can help me out.......the other day as I was sitiing in a parking lot with my air on I decided to turn the radio off, about every 2 min or so I would here an extremely faint chirp coming from what I believe to be directly in front of me dash area. I just went and sat in my garage let the car run(doors open dont worry lol ) and listened.......air off no noise.....radio on(no noise)......air off radio off (no noise)
No, but we can add it to my purring sound. I'll try to reproduce it on mine. Ron
PS: Something at about the same place produces a whirring sound on my FJ. Someone mentioned that it could be brake/ABS related.
Quote:
survivorman previously said:
ok guys hoping you can help me out.......the other day as I was sitiing in a parking lot with my air on I decided to turn the radio off, about every 2 min or so I would here an extremely faint chirp coming from what I believe to be directly in front of me dash area. I just went and sat in my garage let the car run(doors open dont worry lol ) and listened.......air off no noise.....radio on(no noise)......air off radio off (no noise)
air on low alone.....small faint chirp
what is this its driving me mad!
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08 SS, SS valve stem caps and exhaust tip
Rapper standing on the corner, wrappers flying in the wind... And in my quite reflection, I wonder why..
hmmm possibly.........ok went back out to investigate, it seems that noise only happens when air is on and the recyled air button is on.......it runs for a bit, then there is a slight faint click.....then it sounds like the engine revs down.....could be the compressor building up?
like I said its not a loud noise by any means, but I noticed it sitting there silent and kept hearing it every couple minutes.....was just annoying
ok sprayed some WD40 on the belt...will see how that works out.
its weird though I guess when the compressor engages and disengages it feels like the engine reves up and then down....thats when I hear the faint chirp......it almost sounds like it is coming through the speaker.....is that possible?
Someone posted about this. I wish I can find the thread. It's suppose to be something completely normal. I think it may have been RoverGGM that posted the answer.
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Click for the "Genie" build up
Sandoo Blue FJ
Walker Evans adj. F&R reservoir shocks. Pro Links. AP F&R bumpers. Demello skid. Mile Marker SE9500C. Viking Trail Line. Super Swamper LTB 34s on Tacoma wheels. 305 MTR on Wheelers wheels. Trail Gear Sliders, Aeroflow, Lightforce Blitz 240, Powertank 10lb, Hi-Lift, Jack Mate, Pull-Pal.
If the noise is intermittent, it may be that you're hearing the braking system pump running. It pressurizes the system at startup and whenever needed while the engine is running (after braking).
) and listened.......air off no noise.....radio on(no noise)......air off radio off (no noise) 
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