Noisy snorkel or something else?

Took me a while to get used to the intake noise on my snorkel, since I normally drive with the window down. But it is more of a noise and at first I thought I had a small hole in the exhaust or a leaky exhaust manifold. It does increase with revs and not road speed, while there is a little whistle at higher speeds as the slipstream passes the snorkel.

Is the engine diesel or petrol?

It's obvious, the car is just happy to bring you home from work but grumbles going to the sweatshop.

Louie,
I had a rattle on a new snorkle instaled by ARB. Took the guard off and found the mid connection of the Safari not connected. Bit of silcon on the joints placed the flexible connection correctly tightened the screw clamps and all was good.

Cheers

Louie,

It is /was a common problem with the 2.8 diesel Hilux/4 Runner.

There is only one cure and that is to fit a turbo.

A lot of attempts were made to fix the problem but they may reduce the vibration a little but will not fix it. Fitting a turbo will stop the vibration.

This is the only vehicle motor combination that has the snorkel vibration as thought he dash is going to fall out.

Wayne

It's probably just induction resonance.

They all do it to some extent maybe just more noticeable in the cold or before the engine has warmed up.

Louie

Had the same problem snorkel not bolted tight to guard and connecting sleeve not done up pull inner guard panel off and tighten up a little bit of silicone on joints most of vibs gone

Regards
Oldpop

Hi Louie, I had one on my 2.8lux (safari). Its more a resonating noise then any thing (unless its actually rubbing on body). When you take the ram off the top there should be a washer type (flat) that sits on top of the tube under the ram with a hole in it roughly the size of a 20c piece. This reduces the intake noise/resonate dramatically. I took it out just to try the difference and it was that noisy that it would drive my wife nuts in the passengers seat even with out window down. Wind down the window and thats all you could hear. This metal plate/washer bout 1.5mm thickness should only be taken out when running a turbo for obvious reasons (to suck more air). You dont have to have it in there for any other reason then to stop the noise. It doesnt reduce power, fuel consumption or anything else. The 2.8 doesnt have enogh grunt to require any more air through the ram unless as said above and running a turbo. As mentioned in above post the only way to reduce it totally is turbo but with washer in place no major issue. You can see the washer in the picture below. Item under the clamp.Hope this helps you with the problem.Regards Steve M