Hissing/whistle noise when slighting accelerating - TundraTalk.net

24hrtoy · 06-12-2008, 09:47 AM

Brand new truck, got some weird hissing/whistle noise if I barely apply pressure to the gas pedal. Took the truck to Toyota, engineers came out to review and said the noise was from the stock air box, it's the sound of air being sucked in. They reported that if I switched to a CAI, the noise will go away. WELL.... $400 later and a few extra horses, the noise is still there. WTF! Anyone else have this problem?

Need to drive with radio off, cruise at any speed and then slightly apply pressure to give it gas, just enough to raise your RPM's. Quite annoying if you drive sometimes with the radio off... I know I know.... leave the radio on but we all need some quite time especially after a hard days work.

turnandburn · 06-12-2008, 12:50 PM

You could have an exhaust leak???????? The only time i can hear my k&n is the first split second i push on the gas.

2008_CrewMax · 06-12-2008, 01:00 PM

my first suggestion was gunna be "your cai would make that noise"

24hrtoy · 06-12-2008, 03:10 PM

Exhaust leak, vaccum leak, suction leak, air leak.... LOL all this was mentioned to Toyota and they could not find anything. Could hear it inside, but just blamed it on the stock airbox. It's been noted and is on record so if anything becomes of it, they better DAMN well cover it. oh well! I'll just keep the bass pumping in the cab.

AXLES ETC · 06-12-2008, 04:27 PM

I'd take it to another Toyota dealer and see what they say. I had the same problem on my old truck, 2002 tundra and it wound up being the manifold gasket. It had only 8,000 miles on it when it went bad. After that I traded it in with almost a 100,000 miles on it and never had that problem since. Hope they figure it out for ya !!!

ramoine · 06-12-2008, 05:10 PM

Quote:

Originally Posted by 24hrtoy

Brand new truck, got some weird hissing/whistle noise if I barely apply pressure to the gas pedal. Took the truck to Toyota, engineers came out to review and said the noise was from the stock air box, it's the sound of air being sucked in. They reported that if I switched to a CAI, the noise will go away. WELL.... $400 later and a few extra horses, the noise is still there. WTF! Anyone else have this problem?

Need to drive with radio off, cruise at any speed and then slightly apply pressure to give it gas, just enough to raise your RPM's. Quite annoying if you drive sometimes with the radio off... I know I know.... leave the radio on but we all need some quite time especially after a hard days work.

It's air being sucked into the intake , and you will notice it more now that you installed a C.A.I . Nothing to worry about .

Smed · 06-12-2008, 05:11 PM

If it's not throwing any codes I wouldn't worry about it, personally. Running machines make noises.

Seems like I heard something similar, but ignored it. Next time I drive it I'll try to unignore it.

06-12-2008, 09:47 AM	#1 (permalink)
24hrtoy Junior Member Join Date: Jun 2008 Location: Eastvale, Corona Posts: 20	Hissing/whistle noise when slighting accelerating Brand new truck, got some weird hissing/whistle noise if I barely apply pressure to the gas pedal. Took the truck to Toyota, engineers came out to review and said the noise was from the stock air box, it's the sound of air being sucked in. They reported that if I switched to a CAI, the noise will go away. WELL.... $400 later and a few extra horses, the noise is still there. WTF! Anyone else have this problem? Need to drive with radio off, cruise at any speed and then slightly apply pressure to give it gas, just enough to raise your RPM's. Quite annoying if you drive sometimes with the radio off... I know I know.... leave the radio on but we all need some quite time especially after a hard days work. __________________ * 24HR Toy * --------------------------- 2008 Tundra TRD LTD CM - 24" Chrome XONI Diva's 305/35/24 - TRD Sway Bar - Volant CAI - Magna Flow Exhaust (turn down over axle) - Snug Top SL Tonneau Cover - Gladiator Running Boards - ALE 8000k HID Driving lights - ALE 8000k HID Fog Lights - Super Wht Plate LED's - Super Wht Int. Map LED's - Super Wht Door LED's - TRD Shift Knob - TRD Liquid Sport Pedals - Rhino Linings Bed Liner - Rear DVD System - Bluetooth - Navi - Rear Cam

06-12-2008, 12:50 PM	#2 (permalink)
turnandburn Senior Member Join Date: Dec 2007 Location: Alberta Canada Posts: 904	You could have an exhaust leak???????? The only time i can hear my k&n is the first split second i push on the gas. __________________ Tyler yup that's me 2007 Toyota Tundra DC TRD Offroad K&N CAI Truxxx 3in lift kit Toyo Open Country MT's Flowmaster cat back dual straight out the back.

06-12-2008, 01:00 PM	#3 (permalink)
2008_CrewMax Senior Member Join Date: Mar 2008 Location: Southern California Posts: 4,010	my first suggestion was gunna be "your cai would make that noise" __________________ White Tundra Club Member #2

06-12-2008, 03:10 PM	#4 (permalink)
24hrtoy Junior Member Join Date: Jun 2008 Location: Eastvale, Corona Posts: 20	Exhaust leak, vaccum leak, suction leak, air leak.... LOL all this was mentioned to Toyota and they could not find anything. Could hear it inside, but just blamed it on the stock airbox. It's been noted and is on record so if anything becomes of it, they better DAMN well cover it. oh well! I'll just keep the bass pumping in the cab. __________________ * 24HR Toy * --------------------------- 2008 Tundra TRD LTD CM - 24" Chrome XONI Diva's 305/35/24 - TRD Sway Bar - Volant CAI - Magna Flow Exhaust (turn down over axle) - Snug Top SL Tonneau Cover - Gladiator Running Boards - ALE 8000k HID Driving lights - ALE 8000k HID Fog Lights - Super Wht Plate LED's - Super Wht Int. Map LED's - Super Wht Door LED's - TRD Shift Knob - TRD Liquid Sport Pedals - Rhino Linings Bed Liner - Rear DVD System - Bluetooth - Navi - Rear Cam

06-12-2008, 04:27 PM	#5 (permalink)
AXLES ETC Senior Member Join Date: Apr 2008 Location: Bridgeport , Il. Posts: 166	I'd take it to another Toyota dealer and see what they say. I had the same problem on my old truck, 2002 tundra and it wound up being the manifold gasket. It had only 8,000 miles on it when it went bad. After that I traded it in with almost a 100,000 miles on it and never had that problem since. Hope they figure it out for ya !!! __________________ 2007 TUNDRA TRD CREWMAX LIMITED TRD CAI TRD EXHAUST

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06-12-2008, 05:11 PM	#7 (permalink)
Smed Senior Member Join Date: Apr 2008 Posts: 292	If it's not throwing any codes I wouldn't worry about it, personally. Running machines make noises. Seems like I heard something similar, but ignored it. Next time I drive it I'll try to unignore it.

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