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What causes this?

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Old Nov 15, 2019 | 03:18 PM
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Default What causes this?

I been having a problem with my truck I can’t figure out at all. When I drive my truck around and then come to a complete stop and Idle for a bit my trucks Rpms will jump up and down from 500rpm to like over 1,000rpm and from there it just goes up and down and at times my truck will jump forward. Seems like the engine is bogging. Does anyone know the problem? I have a video of it doing it too. Also at one time the truck just completely died out when it did it but the battery didn’t die or nothing I just had to restart the truck again.

Last edited by 2001F150LV; Nov 17, 2019 at 04:55 AM.
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Old Nov 15, 2019 | 03:21 PM
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sounds to be like a bad IAC, but i would diag it further before throwing parts at it
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Old Nov 15, 2019 | 03:26 PM
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Clean your MAF.

Let me guess, you have a K&N filter?
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Old Nov 17, 2019 | 04:51 AM
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Originally Posted by white89gt
Clean your MAF.

Let me guess, you have a K&N filter?
i do not have a K&N filter, but I’ll look into that
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Old Nov 17, 2019 | 04:52 AM
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Originally Posted by djfllmn
sounds to be like a bad IAC, but i would diag it further before throwing parts at it
I’ll look into that thank you, the truck has thrown any lights for it yet
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