Need HELP! humming noise
#1
Driver
Thread Starter
Need HELP! humming noise
the car is park in the garage, engine shut off
Can't explain it properly but there's a humming noise coming underneath more on the rear.
does anybody experience this it's like it's on timer it comes and goes
thanks...
Can't explain it properly but there's a humming noise coming underneath more on the rear.
does anybody experience this it's like it's on timer it comes and goes
thanks...
#7
Lexus Test Driver
Join Date: Nov 2004
Location: Alabama
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Approximately five hours after the engine switch has been turned off, the ECM operates the pump module to check for evaporative emission leakage between the fuel tank assembly and the charcoal canister assembly. The ECM can detect leaks by monitoring for changes in the fuel tank pressure. After all this how long was the car parked before you had your humming noise start?
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#8
Driver
Thread Starter
yes I was reading about that yesterday, the humming noise starts somewhere around 4-6 hrs after engine shut off, with the garage closed you can clearly hear the noise. I only have the car for a month now so these are all new to me.
thanks billy44bo for the info.
thanks billy44bo for the info.
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