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Message: [QUOTE="aruss0311, post: 991348, member: 15515"] I was driving m truck on the freeway when i noticed my mpg had dropped from 18mpg to 13mpg. Then i realized i was not able to boost more the 15psi. (im normally getting around 20psi) when i got off the freeway i noticed some more problems. when i would stop and a stop sign and got on the gas i would dump a ton of black smoke but i would only crawl forward. then when i got going and the truck would shift into 4th gear i noticed a horrible vibration between 1500 rpms to 2200 rpms. I was thinking i could have a boost leak somewhere or maybe a sticking turbo? anythoughts? I currently have mbrp exhaust, sct live wire, innovative ficm tune, and hot and cold side intercooler piping. :stupid::biggun: [/QUOTE]

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