OK i towed my 26ft 9000lb toyhauler about 500 miles this past week, pulled great, but when im on it up a grade the turbo starts making a noise like a teakettle as soon as i pull the grade noise goes away ?????????

 

What year truck is it? Is it just a turbo whistle or does it sound like there is a leak somewhere

 

2004.5 2500 Not a turbo whistle its a noise other than that just when im pulling hard up a grade it comes on and then goes away after i pull the grade and then i am off off the gas. its a high pitched schreech like a tea kettle almost??

 

It may not be coming from your turbo. If I had to guess without hearing it myself, a "teakettle" noise sounds like a timing issue.

 

truck is totally stock other than 4" straight and boost fooler but it made this noise before boost fooler

 

truck is totally stock other than 4" straight and boost fooler but it made this noise before boost fooler 40000 miles

 

Lol, sorry, I was thinking of a coffee maker for some reason. After remembering what a teakettle sounds like, I would have to guess boost leak.

 

Boost leak! check all your charge hoses for loose clamps, holes, etc.

You may have to build an adapter that you can fit over the intake on your turbo. I built one from a piece of hose off an old intake, and a 4"(dia) plastic pvc plug from Home Depot. Drill a hole into the side of the square "nut" on the end of the plug to accept a schrader valve, if you drill it out the end, you will find it will not fit without removing your oil filter.... I found this out.

Clamp this over your turbo, and set your compressor to 35#, you should find the leak quick enough.

 

10-4 on the boost leak. Mine did the exact same thing once and it was just a loose clamp. Tightened it up and all was well..