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View Full Version : Need ideas on what the light hum and small "tick" are on cold startup



cros
07-22-2008, 05:27 AM
hello. my name is ryan and i just purchased a 2002 4Ruuner SportEdition a couple weeks ago. Iv loved the body style and capabilities of the 3rd gen 4Runner ever since highschool, so you can image how excited i was when i found just what i was looking for.

Anyway, on to my question. Now, keep in mind this is my first 4Runner, actually first Toyota for that matter, and iv noticed something ever since i got it. In the morning, right after turning the truck on, there is a very light hum that comes from, what seems like, the lower part of the engine bay, followed by a small "tick". This happens maybe 2-3 times each time the truck has sat overnight or during the day. This could be something completely normal but like it said, this is my first 4Runner, so i'm not familiar with it just yet. any input would be great. thanks!
:drink:

[Edit - Good Times - Title clarified]

gilby4runner
07-22-2008, 07:15 AM
Its normal. Dont worry about it. My 02 sport does the same thing.

Nick
07-22-2008, 07:45 AM
Emissions systems making noise - tick, humm, mine also does this whining noise after I turn it off for a while. Not to worry! Enjoy your 4Runner Ryan!

YotaFun
07-22-2008, 08:13 AM
Yup, perfectly normal.
Welcome to the 3rd gen world dude!
Post some picks, i am already jealous *hood scope envy*

gilby4runner
07-22-2008, 08:17 AM
hey Avy...Ive got one...waahahahahaha

cros
07-22-2008, 08:23 AM
awesome, thanks fellas! :thumbup:

YotaFun
07-22-2008, 08:50 AM
hey Avy...Ive got one...waahahahahaha


Yeah and so does my stepdad, I see one every morning....
*tears* I WANT A HOOD SCOOP!!!!

DHC6twinotter
07-22-2008, 10:56 AM
Well, seeing as your question has already been answered, I'll just say welcome to the forum! :thumbup:

Brunoski
07-22-2008, 04:57 PM
If you notice a similar sounds after breaking, then its the ABS pump.