97 F250 with waste gate problem - Ford Powerstroke Diesel Forum
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Old 12-23-2010, 07:15 AM
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97 F250 with waste gate problem

I have a 1997 F250 and the waste gate on the turbo opens up while driving. Im not really sure whats causing it. One of my diesel tech buddies said it could be the exhaust back pressure sensor or the tube, the map sensor, or some other things too... well i cant recall the other things and i replaced the map sensor and exhaust back pressure sensor and the tube and it still does this. I can be driving down the road and hear a lound whooshing sound comin from the exhaust. if i stop the throttle its will go away. I would really appreciate some advice on this. thanks
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Old 12-23-2010, 07:21 AM
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what you're hearing is the ebpv - the exhaust back pressure valve - opening and closing. It was designed by IH to help with cold weather warm ups. people debate whether or not it works. lots of guys delete them, but it is a normal sound.
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Old 12-23-2010, 07:23 AM
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Ok so i feel like a dummy. exhaust back pressure valve... oops
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Old 12-23-2010, 08:53 AM
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your truck isnt up to operating temp yet, diesel engines need a few minutes to properly warm up. If you really want it to stop you can unplug it under the compressor wheel, there is a 2 wire connection
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