loss of power in cold weather? - Ford Powerstroke Diesel Forum
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post #1 of 28 Old 10-21-2012, 09:54 PM Thread Starter
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loss of power in cold weather?

My 2000 7.3 loses power in cold weather. whether it be first start up in the morning even after letting it warm up for 10 min. Or driving in the snow. Is there anything wrong with my truck or is that just how 7.3 are? If that is the problem is there a performance part I can buy to help this? Hope anyone can help
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post #2 of 28 Old 10-21-2012, 10:50 PM
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Are you running #1 or #2 diesel?

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post #3 of 28 Old 10-21-2012, 11:25 PM Thread Starter
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Idk what is the difference?
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post #4 of 28 Old 10-22-2012, 12:31 AM
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I would add a fuel additive anti gelling to a few tanks. If it works great, if not your only out $10.

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post #5 of 28 Old 10-22-2012, 03:18 AM
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And I'm guessing it sounds funny and you only drive it for 20 mins, right?

It's your EBPV. Totally normal for cold weather. It will shut off when the motor is fully warmed up.

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post #6 of 28 Old 10-22-2012, 05:40 AM
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These trucks do not like to 'start up and go' when it's cold out... like Zaairman said, the EPBV comes into play when cold starts occure, and will continue to effect performance untill the motor warms up, and even after, if it's cold enough.

I normmally plug them in at anything below 30-35 degrees, not because the glow plugs don't work, but because I think it's better for the motor to be warmed up for start up, less wear and tear on berrings and such if it's that much closer to operating temp to begin with, as well as I like to have heat almost instantly! Sure, with a properly operating glow plug system they will start at or below 0 degrees F, but it's just so much easier on the whole system when it's warmed by having the block heater pluged in.

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post #7 of 28 Old 10-22-2012, 05:42 AM
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You could run a cranking vacuum test and compression test to try to determine if your prob is in the engine or secondary systems. If it were my truck, thats where Id start


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post #8 of 28 Old 10-22-2012, 07:28 AM
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Its the ebpv. And NO diesel likes the cold. They are all picky.
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post #9 of 28 Old 10-22-2012, 07:50 PM
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Don't forget about winter blend fuel...we're coming upon that time of year out in the Midwest.

EBPV will also cause poor performance when it's closed...it's basically a glorified exhaust brake designed to help warm the engine, via load...and it's annoying as hell.

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post #10 of 28 Old 10-22-2012, 08:26 PM Thread Starter
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The coldest it gets where I live is about 25 degrees and I've never heard of a winter blend? Is the ebpv that hissing noise out the exhaust when my truck is warming up then shuts off?
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