i am ttrying to find my boos tleak.i made me a boos tester but if i put more that 15lbs on the system the hose tries to blow off the turbo.@ 15lbs i can not find a leaky boot.could i possibly need to put more pressure for the leak to show up?could i have a blown head gasket?when i mash the trottle it will spike 27lbs then immediately fall down ti 15lbe and that is what it holds at full throttle.help!

BAD ASS RAM's Sig:

1997 RAM 2500 12 VALVE.100hp INJECTORS,#100 FUEL PLATE FULL FOREWARD, MODIFIED AND TUNED AFC HOUSING,HX35/40 HYBRID,NO SILENCER RING ,WASTE-GATE PLUGGED.BOOST,AND PYROMETER GAUGES.W/BUILT AUTO TRANNY AND BILLET CONVERTER,TC LOCK UP SWITCH,CHAMBERED DUAL 5"SLASH CUT STACKS,TRACTION BARS AND 17"X9"MOTO METAL WHEELS,WITH 295/75/17 NITTO TERRA GRAPPLERS

the lower boot on the passenger side (right before the intercooler) likes to cut itself on the sheet metal right beside it when it expands under boost.

Faulty waste gate maybe?

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faulty wastegate plug?

94 12valve's Sig:

Dave

"Half Fast" 2.6 puller/weekend toy
Thanks to
SDX
Mid Atlantic Diesel
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Engineered Diesel
Mumau Diesel

could you give me some more info on the waste gate plug?and could my waste gate be stuck part way open?

94 12valve is talking about the plug you installed to keep the wastegate from operating so the motor can create higher boost. You installed it.

relay93's Sig:

1996 CC 4x4 5 Speed. DDP Stage 2 inj. #10 back in. SuperB Turbo in service. Stock AFC spring. Gov. 3K Springs installed , Always trying different tunes of the Fuel Plate and AFC.

The boost should still be higher than that even if the wastegate was functioning!

i plugged the turbo,where it goes to the waste gate.i didnt plug the waste gate side,does that matter?

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could the waste gate be stuck part way open?

Use some soapy water and a spray bottle to find any leaks. Pressurize the system and then spray the soapy water on it and look for bubbles just like checkin gas lines in your house.

Sounds to me like a cracked manifold here. With little or no pressure it only looks like a barely noticeable spider line crack, but with pressure it opens up and makes a gap leaking pressure off. Also be sure to check all the bolts around the manifold and turbo to makes they are tight.

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99 Quad Cab, 4wd, Drag Comp W/Pump Wire & Boost Elbow installed, K&N Air Canon, MBRP exhaust, Belt Drive Lift Pump and bottom Bulkhead feed from the tank, Isspro EV Pyrometer, Boost Gauge, Fuel Pressure Gauge, DT Pro Fab Trac Bar, South Bend 13-1.25 Con O Clutch, Ranch Hand Bumper, Borgeson Steering Shaft, Black Silicone Boots, 2" Lift Soft Ride Front Coils, Solenoid High Idle Kit, Bilstein 5100 HD Shocks, Rickson 19.5 Wheels w/Hancoock Rubber, HD Maxx Link Sway Bar Links, Superlift dual front stabilizer, EGR Brakes Front and Back, RV275 Injector's, Blue Chip VP44, Prodigy brake controller, B&W Gooseneck hitch and more I can't remember right now. Not to mention more to come I'm sure.
374.2/846.7 at 30psi

Have you had the intake horn off while messing with fuel plate? I'm sure you have it makes it easier, but the point is what did the gasket look like was it torn? Also I had a leak on mine that gradually got worse. I pressurized the system up to 24 psi I could barely hear it but what I found was the tubing to the guage had rubbed on the some metal wearing along fine crack. i cut the bad part out used a 1/8 compression coupler and made sure there were not bad spots in the tubing. You might want to check your boost guage.

check the boost elbow.
try pinching off the wastegate line completely and see how much boost it will build and if it will hold it

dan33klein's Sig:

96 ram 2500 cuummins 12V twin turbo diesel reg cab long box. new ValAir clutch, 5 inch turbo back exhaust holset hx35/40 hybrid over a garrett HT3B turbo, banks actuator ddp stage 2 injectors, #10 fuel plate,ARP head studs boost elbow, 4k kit, 60lb valve springs, water/methanol injection starwheel cranked,custom air intake,boost,pyro,and oil temp guages.

my waste gate is plugged

have you checked that lower boot?


Sounds exaclty like that... The boot expands, opens up, boost drops...