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Cold Turbo Sound???

  #1  
Old 10-22-2007, 12:08 PM
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Cold Turbo Sound???

I started my 96 PSD this morning at about 34 degrees. I let it warm up for about 15-20 mins. when i took off the turbo and exhaust pipe were makin a wierd sound, almost like there was something stuck in the pipe. wasnt a whistle like normally on my straight pipe, but more of a blowing sound like an air compressor valve being opened. when i was goin about 25mph it was doin same thing and untill i stepped on it a little more the turbo made the normal whistle sound like normally it does but after i let off it started to whoooosh again. is it a problem with my hpop to the turbo or is it my ebpv??? or is it another problem??
 
  #2  
Old 10-22-2007, 12:14 PM
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i bet it is your ebpv.
 
  #3  
Old 10-22-2007, 12:18 PM
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It's your ebpv. Just unplug it and forget about it. It's a two wire plug screwed to the base of the turbo.
 
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Old 10-22-2007, 12:19 PM
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X2

Bill
 
  #5  
Old 10-22-2007, 03:13 PM
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Rigth here:
 
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  #6  
Old 10-22-2007, 04:59 PM
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HA HA I had the same noise, even louder when I put on the AFE ,now that I unpluged the ebpv noise is gone
 
  #7  
Old 11-30-2007, 04:06 PM
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this is the EPBV

 
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Old 11-30-2007, 04:12 PM
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What does EPBV stand for and what does it do? I have the same problem.
 
  #9  
Old 11-30-2007, 04:42 PM
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Its not a problem, its a built in valve to increase EGTs at idle/low speed to warm the engine up faster, they generally work, but can get annoying like that
 
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Old 11-30-2007, 04:54 PM
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Like Lead Head said. EBPV = Exhaust Back Pressure Valve
 
  #11  
Old 11-30-2007, 07:03 PM
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So, why unplug it if the trucks operate better at a hotter temp?

Uh, thought coming ... you guys probably don't live in the cold areas?

I hear it only in the AM and then it goes away. The more heat I can get the better to start burning veggie.
 
  #12  
Old 11-30-2007, 07:06 PM
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I have read that the EBPV was a wasting time engineers. Most people has it unplugged and no any problems. And other has gutted it for always.
 
  #13  
Old 11-30-2007, 07:07 PM
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But you also can canvert it to a exhaust brake, and works very well and cheap.
 
  #14  
Old 11-30-2007, 08:05 PM
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it barely does anything... it's been in the 20s and under already here.. with mine unplugged it warms up just the same as it always did....
 
  #15  
Old 11-30-2007, 10:02 PM
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The valve does very little of what it was designed to do. If it malfunctions and stays closed it will cause low power and high EGT which could hurt the engine and turbo. The valve only aids in cold start up warming not operating temps.
 


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