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Sorry for the unexplained acronym use. DTC = diagnostic trouble code, MIL = maintenance indicator light. The valve triggers a DTC if the position...
Finally a fellow noise victim! I figured that it was the coolant control valve, but was surprised how strongly I could feel it on the thermos...
Anybody else? Unless the radio is on, this noise is obvious, especially when the car is stopped at a traffic light. Does this mp3 sound familiar...
Since it didn't make the noise since it was new, I'm concerned that it's a sign of an impending failure. I'm not losing sleep over it, though. I...
I originally posted this in the tech discussion forum, but it took a while for me to get a recording of the sound. I thought this might be a...
I finally got a recording of the noise. It's definitely coming from the thermos bottle area. I can feel it when I touch the plastic tee on the...
I'm glad I'm not the only one! Too bad my Autoenginuity won't talk to the A/C system, or I would be able to see what was going on. I wondered if...
It's actually my wife's car, so I don't see it much. I'll see if I can get that done sometime.
The noise doesn't come up when the systems are turned on, and the sound of the engine/thermos coolant pump is different. I'm due for a coolant...
No, only when it's in the run position.
I read that TSB, but my noise isn't affected by brake use. The fact that it happened after the coolant valve(s) were cycled leads me to believe...
I cycled the inverter pump, and it's a different sound. It happens when the car is in run mode, and with the ICE on or off.
Nobody else has heard this? I should have mentioned that the closest sound I can equate it to is a quieter version of a windshield wiper motor on...
Does anyone here have an Autoenginuty with the Toyota expansion? Mine won't talk to the A/C system. When I select the A/C system, it comes back...
strange noise, coolant valve cycling on and off? My '05 has developed a strange noise from the engine compartment. It sounds like a pump or valve...
