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Message: [QUOTE="Irishcream, post: 528459, member: 1464"] Having driven my 7.3L in Winnipeg, the coldest place on earth outside of Siberia, I realized two things. 1. I always warmed my truck up in high Idle 2. The EBPV was utterly useless. I know there are gonna be some that will strongly disagree with me on these points but having driven in such harsh conditions I had first hand experience with cold. I used my truck for hauling goods both in the box and on a 20ft flatdeck trailer. The EBPV would be constantly closed throughout various periods in the day. Warming up the truck by merely idling would do nothing to raise the block temp because it was just too cold. High idle was a must or else I would get the same stumbling while driving. Even idling while unloading the truck would cause cylinder wash and white/grey smoke from lack of compression. At one point while driving the EBPV got stuck closed even under load. I let off the pedal then jumped on it hard and it made such a huge bang and puff if black smoke that I could see the shape of the car that just went through the cloud. The origianl function of this thing was to help warm up the engine faster but it restricts so much exhaust that the vehicle cannot get upto normal RPMs which in turn would have warmed the engine naturally. I have had my EBPV unplugged for about 2 years now and have no plans on hooking it back up. If it worked more like an engine brake(jake brake) then I would see a greater benefit to having it. As a Heavy Duty Diesel Mechanic we often use the Jakes to get engines upto temp quickly but the function of the two are quite different. [/QUOTE]

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