Anyone ever heard this strange sound upon starting engine?
#1
Anyone ever heard this strange sound upon starting engine?
My 2006 RR HSE with 133K miles recently began making a high pitched screeching sound upon starting the engine. Happens on cold and warm engine starts. Sound / noise lasts anywhere from 2-5 seconds then disappears. Sounds electronic (as opposed to mechanical) and sounds like it’s coming from inside the cabin (as opposed to the engine bay). Sound doesn’t correspond to acceleration or RPMs. Don’t think it’s radio related either. No warning lights or error messages. Vehicle runs great otherwise. Has anyone experienced this type of sound or have any thoughts as to what’s going on? Any help would be appreciated…
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#2
My 2006 RR HSE with 133K miles recently began making a high pitched screeching sound upon starting the engine. Happens on cold and warm engine starts. Sound / noise lasts anywhere from 2-5 seconds then disappears. Sounds electronic (as opposed to mechanical) and sounds like it’s coming from inside the cabin (as opposed to the engine bay). Sound doesn’t correspond to acceleration or RPMs. Don’t think it’s radio related either. No warning lights or error messages. Vehicle runs great otherwise. Has anyone experienced this type of sound or have any thoughts as to what’s going on? Any help would be appreciated…
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#3
#5
Yes, I’m sure. Belt was replaced for general age during the time this has been happening and it didn’t eliminate the gremlin. As best I can glean, it stems from a component referred to as the ‘ECU box’ whatever the heck that is / does.
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