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  1. 6.0L Problems Forum
    I am fighting an issue with my Boost and MAP readings (on my CTS3) going erratic under high boost conditions. When under hard acceleration (>15psi boost) the readings for boost can jump to a negative number and MAP will go to 0. Usually bouncing around until I back off the throttle. This is...
  2. 94-98 7.3 Motor Problems
    i have been looking for an answer this evening and found some information that i hope will get me going in the right direction.... but i figure asking a few questions wouldnt hurt. on the highway at 2500 rpms im usually at around 4psi, when pushing abit harder the most ive seen is 11, i keep...
  3. 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...
  4. 99-03 7.3 Motor Problems
    I have a 99 7.3 F-250. the truck has a 5" turbo back stright pipe exhaust, a pure diesel power 65 hp chip, and an intake. while driving the truck will build boost normally until it reaches 11-12psi then it seems like the wastegate opens and the boost pressure drops to around 5-6 psi. if i...
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