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turbo help?

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Old Jan 20, 2009 | 02:15 AM
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drbigknuckles
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turbo help?
97 f-250 7.3 when driving after a cold start it sounds like i have a exhust brake when i let off the fuel pedal (no engine load) you can hear a sucking sound when hitting the pedal again. i was thinking maby my wastgate is sticking open a small amount but once the truck heats up it runs fine any help would be great thanks..
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Old Jan 20, 2009 | 06:08 AM
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arkredneck
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is your EBPv still plugged in? you could try unplugging it if it is by disconnecting the plug under the turbo inlet
 
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Old Jan 20, 2009 | 06:30 AM
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No wastegate its the EBPV like arkredneck said.
 
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Old Jan 20, 2009 | 07:14 AM
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what is the ebpv? how should i check to see if it is pluged in?
 
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Old Jan 20, 2009 | 07:32 AM
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93f1505.0L
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Its the exhuast Back Presure Valve. the conector it on teh drivverside of the truck just under teh turbo. I belive it 2 wires. Ill see if I can find a pic.
 
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Old Jan 20, 2009 | 07:38 AM
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Is there any difference in having it pluged in or not?? I just read another forum about guys plugging the ebpv some how.
 
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Old Jan 20, 2009 | 07:52 AM
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93f1505.0L
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Here is a pic of the connector compliments of Neal 97 250:


There is really no difference in umpluging it othere than it does not work anymore but when it di it hardly did anything anyhow. sometimes they get stuck closed and cuase problems so unpluging it prevents that. I think you are talking about disconecting the valve completly and im not sure on that one but im pretty sure unplugging the conector will do the same thing but easier.
 
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Old Jan 20, 2009 | 07:58 AM
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ill give that a try after work today. Thanks for the help!!
 
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Old Jan 20, 2009 | 08:00 AM
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You can unplug it but if you still have problems you may consider wiring it open as well to be sure. Usually just unplugging it works.
 
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Old Jan 20, 2009 | 10:35 AM
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i had the same problem and unplugging the connector worked prefectly.
 
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Old Jan 20, 2009 | 11:28 AM
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Glad it worked for you. 9 times out of 10 it works good.
 
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Old Jan 20, 2009 | 09:11 PM
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i un pluged it today and it works good. i was about to replace the valve. glad i didnt. thanks for the help guys..
 
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Old Jan 21, 2009 | 06:55 AM
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Glad it worked for you also. Stick around here there is a vast amount of knowledge here.

Welcome to FTE, BTW
 
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Old Jan 21, 2009 | 09:52 PM
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Originally Posted by Neal 97 250
Glad it worked for you also. Stick around here there is a vast amount of knowledge here.

Welcome to FTE, BTW
I will stick around. I have been reading alot on this site and have found alot of good info from all you guys. More then i could find in a service book. Thanks again for the help..
 
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Old Oct 15, 2009 | 07:50 AM
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so the ebpv. will cause it to sound like it sucking air and by unpluging it it should take care of it? will it also help the flutering sound when the waste gate opens instead of a swoosh
 
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