Question about EBP & EPR - Ford Powerstroke Diesel Forum
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Old 02-21-2011, 08:37 AM
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Question about EBP & EPR

Hello guys I am new to the site and Powerstrokes in general, but have been reading alot of good info on here. I have a 97 CCLB with 209k on it my question is about the EBR. Last night the temp outside was about 5 or 6 degrees, truck started right up no problem but there was a loud growling noise while it was running so I shut it off and restarted it and the noise was still present. After the truck sat and idled for about 10 minutes the noise quit, then after idling about 25 to 30 minutes I began to drive it. While driving the noise would come back intermittently and I could feel a bit of reduction in power I was only driving about 25 to 30 mph in town. Once the engine temp got up to the "N" on the normal area of the gauge everything seemed normal and no more noise. So was this the EPR working that I was hearing and feeling until the engine warmed up or do I have a problem? I have read about guys modding the EPR and using it as an exhaust brake and thats kinda what it sounded like, although I am sure it has not been messed with by the previous owner as the truck is all stock.
Thanks for any info you guys may have!
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Old 02-21-2011, 12:24 PM
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yes, what you are describing sounds like the exhaust back pressure valve (EBPV) actuating to help warm the engine...there are guys that will wire it as an exhaust brake, just google DIY exhaust brake and you should be able to find some write ups...lots of others will tell you to just unplug it as well as the brake only works in high rpms

Welcome to the ORG also
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Old 02-21-2011, 08:47 PM
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Thanks JD. i talked to a buddy of mine who has an OBS also and he said his does it also so I am glad it's what I thought. Another friend said his 6.0 did it as well. Like I said I am new to the PSD, I have always been a cummins guy till now, really starting to love my new old truck though!
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Old 02-22-2011, 04:23 AM
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glad to hear
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