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Discussion Starter · #1 ·
I was driving on the highway and then my truck started to make a loud whistling sound. I stopped to look at it but couldnt figure anything out, so i kept driving. Then the whistling sound went away, but now my turbo doesn't seem to be working. There really isnt any turbo whistle and when i press on the accelerator the turbo doesn't seem to kick in. Does anyone know what could be wrong?
 

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turbo might be sticking
 

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My turbo makes a small moan on accel and decel. Sounds more like a sigh. I still have power.....it will hit 0-60 pretty quick. The truck is showing a p0046 code. Does yours do anything like that?
 

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matt
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vains sticking
 

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This pricey little sensor may be the culprit....

List: Search for 'egr635' | O'Reilly Auto Parts

...it was for me at least and you description is very similar to the problem i recently had...



The sensor is a bit sensitive. Facing the side of the motor on the drivers side look at the font of the valve cover. Directly below the coolant reservoir on the drivers side you will see a tube coming up from the side of the valve cover which is threaded into the exhaust manifold. On the top of the tube you will see an electrical connector. That is the sensor.

The tube could also be clogged with soot so take a piece of weed-eater line and run it through to clean it out.
 

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Discussion Starter · #12 ·
ok thank you, i am going to look at that tomorrow morning. did yours loose all power or did you have some power? Mine i have very little power at first but then when i floor it almost, I get the turbo to kick in.
 
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