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howling noise

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Old Sep 26, 2009 | 07:43 PM
  #1  
bigdummyford's Avatar
bigdummyford
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From: Duluth
howling noise

Well now that the truck is on the road, I took 'er out for a test run, it seems I can only build about 10 psi and it howls terribly over 8 psi. Anyone have a clue?
 
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Old Sep 26, 2009 | 08:56 PM
  #2  
Tenn01PSD350's Avatar
Tenn01PSD350
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From: Middle Tennessee
I suspect some kind of turbo problem as if you did not. Make sure the turbo is sound then check all your boots and up pipe connections. I'm sorry, what was the problem before? With your mods you should be able to hit 30psi easy so you have a serious turbo problem with that howl. Make sure it is not chewing itself up.
 
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Old Sep 26, 2009 | 09:08 PM
  #3  
7.3 Rocket's Avatar
7.3 Rocket
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From: Wallingford, CT
Are the EGTs unusually high? When I pop boots on mine it makes a sort of howl and the EGTs go up pretty high until I find a safe place to pull over and fix it.
 
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Old Sep 26, 2009 | 09:08 PM
  #4  
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bigdummyford
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From: Duluth
this is why I am a big dummy

I forgot to tighten the clamp on one of the spider boots......that and i think it doesn't like anything but castrol, it killed a motor on Amsoil, and spat out the drainplug on pennzoil. guess the ol truck is a picky eater. Otherwise the truck is done its awesome, thank you to 7.3ers for all your support.
 
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