New loud vacuum type noise during acceleration - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 06-17-2013, 09:56 PM Thread Starter
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New loud vacuum type noise during acceleration

Like others I am new to the Powerstroke world with my 1995 F-250 7.3l 126k. I just brought the truck out to Idaho from Washington. During the trip the truck started making this loud vacuum type noise that goes along exactly with acceleration. Some times it stops after 1st gear some times it last through all gears at all speeds. You can hear it with the windows up ac on and off. It does not seem like there is a loss in power or anything else. Is this normal?

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post #2 of 5 Old 06-18-2013, 09:43 AM
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Sounds like your EBPV - exhaust back pressure valve. Usu. accompanied by some power loss. Shouldn't be doing this at all at this time of year. Search "EBPV" here and on the other Powerstroke related forums for way too much info on how to deal with this issue.
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post #3 of 5 Old 06-18-2013, 02:23 PM Thread Starter
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Thanks I appreciate it. Still learning what everything is.

1995 F-250 7.3L 4x4
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post #4 of 5 Old 06-18-2013, 03:23 PM
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Could have also been the fan clutch engaged due to temperatures, I know when mine starts turning on a hot day, you can hear it

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post #5 of 5 Old 06-18-2013, 08:00 PM Thread Starter
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Quote:
Originally Posted by 05_PSD_Erik View Post
Could have also been the fan clutch engaged due to temperatures, I know when mine starts turning on a hot day, you can hear it
Thanks man it was the fan clutch mixed with with my paranoia. It never engaged in Washington but as soon as I hit the Idaho heat it's been on 50% of the time.

Thanks again you guys are awsome!

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