Engine/Transmission (1998.5 - 2002) Hissing under hood...

[USMCBay]

I am a newbie at the 24 Valvers... I don't recall such a loud hissing when accelerating with my 12 Valve.



It sounds like a slit in my boot going into the intake side... or a hose that is relieving A LOT of pressure...



To make things worse... it stopped for a few days and then I could really here my turbo spool up :-laf - almost piercing and I loved it but now its gone...



Any takers or good guessing would be appreciated...



By the way - '99 4x4 QC LB Straight 3" exhaust - No ring - No boot - No idea why it hisses or why it stopped at one point...

 

[JTCash]

Sounds like a boost leak... Well, hopefully it's in the boost side & not pre turbo... Should be easy enough to find with the help of a buddy in the cab.



R/Jim

 

[ProspectorTim]

Yep, sounds like a boost leak!

Check all your intercooler boots and tighten up all the clamps. Make sure none of the boots have slipped out from under a loose clamp!.

 

[USMCBay]

Well it looks as though the boot has slipped away from the Intercooler somewhat - so I will tighten that up and check other areas. I would imagine this is causing me to loose SOME HP due to not recovering part of the 33% energy recovery via the turbo boost... Ooohhhh - Not bad for a newbie huh I'm probably wrong anyway !! Ha ha...



Thanks for the advice... much appreciated!

 

[JTCash]

Have you ever had a turbo diesel at all? Hoses would have been a good thing to check as soon as the suspect noise was discovered.



R/



Jim

 

[B.G. Smith]

Have you ever had a turbo diesel at all? Hoses would have been a good thing to check as soon as the suspect noise was discovered.



R/



Jim

Well, we live in Texas, it coulda been a snake under the hood. bg

 

[JTCash]

LOL... good point

 

[USMCBay]

It was a snake!! :-laf