RPMs jumping

Jbird

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Looking to get an idea of whats going on with my truck. From a dead stop about 1/2 throttle when it gets to 3rd and sometimes 5th gear if i hold the rpms at about 2k they start jumping 100-300 rpms. But only does it at that rpm range. Its just started since it got real cold here if that helps. Nothing else has changed to the truck recently. Just tried loading a new tune to see if that was it but no change. Any ideas would be awesome

Motors built .030 over with all the top end goodies. Full ******s.

Ill try to get a video up tonight or tom. Im sure thatll help


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Jbird

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https://vimeo.com/154952674

Heres a clip of it. Turn it up you can hear what its doing. Its not much but its never done it til this winter and its very annoying. Ive tried all power level tunes with no change. The engine light is #2 glow plug it just popped up last night. Anybody have any idea where to start

Ohhh and one more thing i heard kind of a squeal or screech sound coming from sounds like up pipe area. Its the second time ive heard it in the last week. Could that be my problem?


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