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dtc 1248

  1. 94-98 7.3L Problem Forum
    Truck starts fine, but when you take off going uphill from my house the truck will only go about 20 mph. No matter how much I press the accellerator it won't rev past 2000 rpm. Hissing noise from engine compartment. After a minute hissing stops and truck runs normal. Could this be the waste gate...
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