I have a 2006 5.9 6 speed. I have a AEM brute force hd intake, smarty jr, straight pipe 5" exhaust. After about 65 mph I have no ***** I can stomp on it and I don't really go anywhere. What can I do to fix that?

 

Well its obviously not typical operation. What are the rpms at 65mph?
Truck been serviced lately?
Lots of things from a lacking fuel delivery system to a faulty fca.
The next step will be get the truck into a competent shop and let them verify the complain and diagnose the issue.

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At 65 my RPMs are at 2k

 

Do you have access to a scan tool that reads live data?

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No I do not. Where can I find one? Or would autozone have one I could use

 

No. Typically you would need to purchase some type of tool. We use a uscan from bosch for initial vehicle evaluation. About $120 if I remember correctly and you can have live data on your smart phone. I know advance carries those. If not you'll need to find a shop tp diagnose your issue. Likely starting by evaluating desired vs actual rail pressure while the issue is occuring.

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