Need some help guys. I have now installed 2 different fast 102mm truck intakes and I am getting a whistle noise from booth. The tuner says it is acting like a vacuum leak. I have sprayed all hoses and all around the intake with carb cleaner and no idle change I have also filled the engine compartment with smoke and cant find any where that it is pulling it in. Has anyone installed this intake and are you getting a whistle noise from yours under throttle. I am just worried cause the truck is supposed to go to the track this Friday for its first 1/8 mile pass on the bottle.....

 

Anyone just need to know if you have a 102mm lsxrt intake if it makes a whistle noise or not....if it does i wont worry about mine if so i will put the stocker back on.....

 

it could be a number of things making the nose. i wouldnt worry about it if you cannot find a leak. what does your tuner say is making it seem like a leak?

 

what are your LTFT and STFT doing, that is the best way to tell if you have an intake leak... the will peg +25 or -25, i can't remember which one...

 

He said it was acting real crazy on start up and had to pull alot more air from it than he has normally seen... He says it is probably ok but i am just supper worried beings this is the first time i have ever sprayed and just want to make sure it is right.....

 

do you have a 102mm throttle body? i hear these intakes take a little more time to dial in with the larger throttle body.

 

No i just got the stock 90 on it....which sealed up real good...

 

Chris,pm returned
if you have a vacuum leak,the fuel trims will go + in closed loop
A customer last night had a leak on bank 2 collector.At an idle bank 2 trim was a + 13 while bank 1 was at a 0 - -2 where bank 2 should have been within 1-2 % of bank 1.The leak was very noticeable.This is just an example
I recommended he have it fixed,you really can't properly tune a vehicle with any leaks but some will still tackle it.LOL

 

Pm sent back.....

 

Thanks for all the Wheatley I am going to let it run Friday. I will let you know monday what she goes...Will be 1/8th mile times....