96 4runner airbox noise?
#1
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96 4runner airbox noise?
I'm looking at buying a friends truck.
96 4runner
2.7l
auto
It's making a strange warbling noise from the hose that goes into the airbox. I believe it's the charcoal canister that the hose connected to, but I could be wrong on that. I don't have the truck handy to check again.
After the vehicle is warm, it makes the noise at idle and at very low revs. It's probably slightly lower pitched then the lights warning noise, but loud enough that you can hear it clearly in the cab. A very clear, oscillating, warbly, wobbly, howly noise. and it's definitely coming from the small hose that connects into the airbox.
Any thoughts? Is that a normal noise for the 3rzfe? Too loud?
Truck drives great besides that and looks like a good buy.
thanks!
96 4runner
2.7l
auto
It's making a strange warbling noise from the hose that goes into the airbox. I believe it's the charcoal canister that the hose connected to, but I could be wrong on that. I don't have the truck handy to check again.
After the vehicle is warm, it makes the noise at idle and at very low revs. It's probably slightly lower pitched then the lights warning noise, but loud enough that you can hear it clearly in the cab. A very clear, oscillating, warbly, wobbly, howly noise. and it's definitely coming from the small hose that connects into the airbox.
Any thoughts? Is that a normal noise for the 3rzfe? Too loud?
Truck drives great besides that and looks like a good buy.
thanks!
#4
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Looks like the tubes are all there. I recorded a short video.
After you turn off the vehicle, you get a buzzing that's identical to
https://sites.google.com/site/bugeye...unner-evapbuzz
#5
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Maybe Habanero's moo box fix (post 1097) would solve it or maybe not:
https://www.yotatech.com/forums/f200...l#post52041688
https://www.yotatech.com/forums/f200...l#post52041688
Last edited by rworegon; 07-21-2014 at 04:55 PM.
#6
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I did the moobox fix. I found a wrecked evap canister and broke off the resonator piece with some easily repairable damage. Buzz is gone, but it didn't change the warble noise.
I replaced some suspect vacuum lines and it quieted the noise down slightly, but it's still very audible when it kicks in.
I replaced some suspect vacuum lines and it quieted the noise down slightly, but it's still very audible when it kicks in.
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95.5-2004 Tacomas & 96-2002 4Runners
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07-10-2015 06:21 PM