||LinkBack||Thread Tools||Display Modes|
how do you track down a boost leak?
i'm trying to figure out where this weird boost leak is coming from.. i recently did the foil delete so that makes me think it's from putting the i/c pipe back in wrong but i don't know. cruising at 40mph in high gear, in any of the tunes, my truck sits at about, maybe 1100-1200 rpm's and boost generally goes no higher than 8psi before downshifting. i'm noticing this drop in boost, and a whooshing noise from under the hood, but only when i'm at about 1100-1200 rpms and at about 3-4psi of boost and hit a load (like a small incline) and start to give it a little more pedal. with the tunes my truck can sit in those low rpm's and pull itself up the hill with the low end grunt, and it still does but feels a little less responsive and once i start giving it pedal the boost gauge goes to 0. then when my truck downshifts it goes up to whatever psi, you know, 18, 20, 26, etc. and it doesn't lose boost in the HIGHER PSI's, only in the lower ones. what gives?
2001 F-250 Lariat CC/SB
the usual.. some added, some altered, some deleted.
Originally Posted by hammett88 View Post
Soapy water on the intercooler boots works
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4
Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake
Join Date: Aug 2006
Location: Mayberry, NC
Thanked 52 Times in 11 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
The easiest way is to go to the plumbing section, you can buy a rubber boot that will fir over the intake plumbing, on the other end get a threaded cap and hose clamp the boot to the threaded part of the cap. Now drill a holw in the square plug on the end of the cap and screw in the correct compressor fitting, apply some silicone to the threads to help seal it. Now slide the other end of the rubber boot over the intake and tighten with a hose clamp. Now you can apply air pressure ( 25 psi should be fine) and look for boost leaks.
Proud Father of USAF Airman
2000 F350 DRW,CC,LB, 4X4, Western Hauler Pkg.
Ford AIS/ BTM, FTVB
My CCV MOD, Coolant filter
06 Grill, 05 lights,6.0 trans cooler
Cyro/Hawks, JVC Touchscreen HU, JL C5's, Infinity 800watt amp,
DP tunes, 60 tow/80 e/120 race, on a SCT2 tuner
P3 controller, Brite Box Turbo Lifesaver
KMC Wheels x 4
Friends Don't Let Friends Drive Trucks With Generic Tunes