Compression Ignition Addict
Join Date: Oct 2011
Location: Chico, California
Thanked 244 Times in 235 Posts
Mentioned: 8 Post(s)
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yep what csipsd said
it just means the truck is cold trying to warm itself up.
there is a butterfly valve on the exhaust housing of the turbo.
it closes to create load to warm the engine up.
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99.5 f250 7.3 4x4 261k FF 160/30, PHP Hydra, S&B CAI, 4" TBE, Van Turbo with Turbo Blanket, RR Billet Wheel, Autometer Gauges, Transgo Tugger, Non-Ebpv Pedestal, 08 Tow Mirrors, Trucool.
Dad-2000 F250 7.3 4x4 111k Autometer Gauges, Superchips 1705 (Tow Safe), 6637, 4" TBE, BD Billet Wheel, Trucool.