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Engine Bogs down when pressing Accelerator

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Old Sep 25, 2020 | 01:22 PM
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caleboc73
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Engine Bogs down when pressing Accelerator

I have a 2003 F150 Lariat, and I am having issues with the truck moving when you step on the gas. It feels like it bogs down and starts sputtering and will barely move. It just out of the blue started doing that. I have replaced all the plugs, and coil backs, EGR, Throttle body censor, Fuel pump, fuel filter, checked the catalytic converters, map censor, and I am just stumped. Nothing I have done is working, You can step on the gas lightly and it will barely start moving, but if you try to step on it normal, it bogs down like its about to stall.

Any suggestions?
 
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Old Sep 25, 2020 | 03:18 PM
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From: The OC
Check for codes? Check fuel pressure? Check fuel pressure regulator vacuum line? Possible FPR problem?
 
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Old Sep 25, 2020 | 05:47 PM
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Originally Posted by lv2race
Check for codes? Check fuel pressure? Check fuel pressure regulator vacuum line? Possible FPR problem?
codes were clear, fuel pressure was good no issue on vacuum line. Not sure about the FPR.
 
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Old Sep 27, 2020 | 05:21 AM
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Have you cleaned or inspected the throttle body itself? Its not a tough task to remove it for a thorough cleaning.
 
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