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When driving push on gas truck chugs

When driving and slow down, when push on gas it chugs like no power then it comes out of it. Mostly does it in o.d. when I shut it off it still does it. So it does it i od.and not init.

Truck chugs when driving and kinda idles rough. But comes out of it if you push pedal . But light was on and the code said fuel to lean

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5 Comments:

@kristidoss what exact year and exact engine? what did you do about the "To Lean" error code

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It's an 01 lariat supercharged.

And cleaned air mass sensor and spark plugs

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Could be an air leak in the intake manifold or thereabouts. You say it idles rough? Take an unlit propane torch, turn the gas on and run it over the intake manifold. It's gotta be close (the torch to the engine). If the idle smooths out or the RPM's increase, you found your air leak. I will say it again - DO NOT LIGHT THE TORCH!

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I will try that. Thank you very much.

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Did you have any luck finding a leak?

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