Noise from turbo?? - Ford Powerstroke Diesel Forum
 
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post #1 of 9 Old 04-16-2007, 10:37 AM Thread Starter
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Noise from turbo??

I've tried to read everything I can about wastegates and the exhuast backpressure sensor. When I first start my turck up when it's cold outside(under 30 degrees) There is a whooshing sound from the turbo area. It will come and go with the as you give it fuel. You can hear it at idle and when it levels out on the road.
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Tim
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post #2 of 9 Old 04-16-2007, 10:44 AM
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Originally Posted by LouisvilleFire View Post
I've tried to read everything I can about wastegates and the exhuast backpressure sensor. When I first start my turck up when it's cold outside(under 30 degrees) There is a whooshing sound from the turbo area. It will come and go with the as you give it fuel. You can hear it at idle and when it levels out on the road.
Thanks
Tim
thats your exhaust backpressure valve.....thats normal operation.....
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post #3 of 9 Old 04-16-2007, 11:00 AM Thread Starter
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I have had my truck for 3 years and never heard that until the last month or so. It doesn't do it all the time either?
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post #4 of 9 Old 04-16-2007, 11:13 AM
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it should do it whenever your truck is cold, like below the C mark

1997 ford f350 crew cab extended bed powerstroke diesel

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post #5 of 9 Old 04-16-2007, 11:18 AM Thread Starter
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this is the first time I have ever heard this noise, it is a continous noise unless I give it fuel, and then it come back when the motor levels off at any speed
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post #6 of 9 Old 04-16-2007, 11:20 AM
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Originally Posted by LouisvilleFire View Post
I have had my truck for 3 years and never heard that until the last month or so. It doesn't do it all the time either?
it only does it under certain conditions, engine oil temp has to be below 32 degrees if i remember off of the top of my head correctly
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post #7 of 9 Old 04-16-2007, 11:25 AM Thread Starter
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That would be right for the temp, but should it be a continous noise?
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post #8 of 9 Old 04-16-2007, 11:26 AM
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Originally Posted by LouisvilleFire View Post
That would be right for the temp, but should it be a continous noise?
yes...at idle untill engine oil temp reaches whatever the computer turns it off at, its used to create and exhaust restriction to warm the motor up faster...
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post #9 of 9 Old 04-16-2007, 11:31 AM Thread Starter
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okay, I trust you, but I just can't remember hearing this before.
I did get a wastegate not detected code about a week ago, but it's not shown it since, so I didn't know if the problems were connected.
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