2010 F150 Rolling idle Edebrock Eforce blower issues

[Sean70ss]

2010 F150 5.4 issues. Truck has mods, tune, eforce blower, headers, airbox. The idle just rolls up and down 1500 to 500 to 1100 then acts like it wants to die and sometimes it does or revs back up.

Have changed throttle body's/maf/reset pcm. The tune from edelbrock and the other company we had make one does the same thing. Checked for vacumn leaks etc nothing there. No codes either. Any ideas of what we could look for? Thank you for the board! Sean

 

[me32]

How many miles?

Was the truck running fine and started out of no where with these issues. Or did you install these parts and the issues started?

 

[BlksvtCobra01]

Sounds like a vacuum issue I think, but try cleaning your IAC and see what happens.


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[Sean70ss]

When everything was first installed it ran good. Somehow my son lost the tune he was doing a transfer to save and it was deleted. We had Edelbrock send us a copy and this is when it all started. Tried and tried to get them to see what was up and nothing. Had another company create a tune still did not fix it. We have taken it apart, went over it man so many times and still does not run correct. Mileage is at 102,000.

How many miles?

Was the truck running fine and started out of no where with these issues. Or did you install these parts and the issues started?

 

[me32]

When everything was first installed it ran good. Somehow my son lost the tune he was doing a transfer to save and it was deleted. We had Edelbrock send us a copy and this is when it all started. Tried and tried to get them to see what was up and nothing. Had another company create a tune still did not fix it. We have taken it apart, went over it man so many times and still does not run correct. Mileage is at 102,000.

Being that many miles are the cam phases in good shape and how is oil pressure?

 

[Sean70ss]

Being that many miles are the cam phases in good shape and how is oil pressure?

Oil pressure is solid, no weird noises from the cam phasers. When you drive it the power is great, no misfires or throttle problems.

 

[me32]

Oil pressure is solid, no weird noises from the cam phasers. When you drive it the power is great, no misfires or throttle problems.

Then i agree its a vacuum issue or IAC

 

[01yellercobra]

2010 is drive by wire. No IAC to mess with.

If it worked with the old tune and didn't work with the new tune then I'd venture a guess that the tune is the issue. As long as nothing else was changed such as injectors or an intake pipe.

 

[me32]

2010 is drive by wire. No IAC to mess with.

If it worked with the old tune and didn't work with the new tune then I'd venture a guess that the tune is the issue. As long as nothing else was changed such as injectors or an intake pipe.

My bad you are correct,

 

[BlksvtCobra01]

If I remember correctly isn’t there a dash pot setting in a tune that can affect idle?


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[01yellercobra]

If I remember correctly isn’t there a dash pot setting in a tune that can affect idle?


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That's usually for decel. But it might be possible for it to be off enough to cause issues.

 

[CobraBob]

Have you thought about a local shop doing a custom tune? Or was that second tune a custom dyno tune? Sounds like you've already invested a lot of time into troubleshooting the issue, and even got that second tune. Hopefully a local tuner can find and correct the issue.

 

[Sean70ss]

We took it to a guy and he could not figure it out. Had JDM create a tune same issue, rolling idle, stumble, stall. I drove it home last night and when I put it in park the idle when crazy, burped, farted and sputtered lol and died. Started it again fired right up but idled at 1500. I really appreciate the feedback everyone.