2001 7.3 loss of power at 15 psi - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 04-26-2014, 08:56 AM Thread Starter
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Exclamation 2001 7.3 loss of power at 15 psi

Driving my wife's X this weekend. Drove it up to Payson, AZ, and had issues with loss of power.

The truck drives fine at city speed, and at highway speed. The problem is when accelerating, if the Turbo PSI got to 15, I'd hear a high pitched squeal, experience loss of power, and the PSI would drop to 0. If I let off the pedal, it would recover, but if I stayed on it (like climbing up a mountain on the highway, or trying to pass someone), I would experience loss of power.

On one of the hills my speed dropped to 45 mph even though I had pedal to the metal.

What would cause this, and how do I fix?

... and the PlaytexBaby bottle feeding captcha below is very annoying. Let's get a man's advertisement like for a Chip, rock climbing tours, etc. I now know more about baby spitup and playtex nipples than I would care to know.
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post #2 of 7 Old 04-27-2014, 05:46 AM
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Boost leak more than likely. Check the boots?
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post #3 of 7 Old 04-28-2014, 02:31 PM Thread Starter
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Quote:
Originally Posted by Shining Armor View Post
Boost leak more than likely. Check the boots?
I'm a bit of a newb. Are those the inlet and outlet hoses from the Turbo?
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post #4 of 7 Old 04-28-2014, 04:51 PM
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Yes. Check all the boots on CAC tubing ( big pipes from turbo to intercooler). One of the boots probably has a small split that only opens up under pressure. My suggestion is get a boost leak detector or make one and pressurize the system because you probably won't be able to see the split.

-Kris

01 cclb f-350 srw-463hp/1025ftlbs PHP Dyno (extreme tune)
leveled with 285's on 17'' XD Spy's
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Why delete something thats truthful? Paid vendor status isnt like the mafia youre not paying for protection from negative feedback here
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post #5 of 7 Old 04-29-2014, 10:43 AM Thread Starter
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If there is a leak, should I get these?

CAC 7.3L Intercooler Boot Kit - Riffraff Diesel Performance
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post #6 of 7 Old 04-29-2014, 12:56 PM
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If those are the boots leaking than yes. But you can buy their entire boot kit for 130 vs 140 if you buy the kit in individuals. Just a thought.

-Kris

01 cclb f-350 srw-463hp/1025ftlbs PHP Dyno (extreme tune)
leveled with 285's on 17'' XD Spy's
Autometer gauges (boost, trans, egt, fuel)
4'' straight pipe
DIY 6637
Powerstruck 160/30's
Hydra Powerstruck tuned
38r
CNCFab fuel & hpop lines
Locally built trans



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Originally Posted by Dave View Post
Why delete something thats truthful? Paid vendor status isnt like the mafia youre not paying for protection from negative feedback here
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post #7 of 7 Old 05-05-2014, 11:35 AM
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Boost leak, or the waste gate may be opening too soon.



2003 EX, 7.3L 4inch Lift, Nitto Trail Grappler's, KMC XD Spy's
216k Miles, Currently 605tq, 312hp
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