Vacumn Leak

[Endorean]

Hi Everyone.

It has been suggested that a vacumn leak may be causing some stalling problems with the R33 GTS-T's.

Does anyone know how to check for a vacumn leak, or where I should be looking to see if there is any signs.

I've search for a thread that may have covered this but I couldn't find one.

If there is, please let me know.

thanks guys.

[predator]

Somebody suggested that some pros use a special type of smoke source through the air intake and seeing where any is coming out.. however of course you'd want to be careful on how you went about it.

[Lenno]

hey guys..

i personally keep an eye on my aftermarket vac/boost gauge which when idleing sits dead smack on -20 (i think) any changes and ya know theres a problem, ie split vac hoses or split rubber joiners on i/c pipe

out...

[Endorean]

What about with the stock gauge on the R33, I know that at idle with the A/C off, it is smack bang on zero, however if the A/C is on, it sits just below zero in the negative range.

[teka]

Ive had higher reving when cold, and a very slight hissing noise, closer inspection revealed a ever so slightly split hose running from manifold to boost gauge,

might help

[mrskyline777]

Ive just recently taken my intake off and re gasketed it due a vacum leak it did not seem to work my idle actually surges up and down i dont know weher it is a vacumn leak im wondering if it is possible for a power steering issue could cause the surge any way we seem to be in the same vote please tell if you find any thing out and how could smoke work on a vacumn leak do you hold externally

[SteveGTST]

Try using water. This is done by getting one of those trigger pump bottles,fill it with water,spray it over inlet manifold ,vac hoses,injector seals ,throttle body or any where there is vacuum.With the engine running,the water is sucked in and momentarily makes the engine run rough.Bingo, vacuum leak found!! Also make sure all connections to the turbo ,intercooler etc are tight.