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2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck.

surges constantly

Old 12-07-2009, 08:06 PM
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Default surges constantly

does any one know why my truck surges at idle
Old 12-07-2009, 08:19 PM
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Nope...I give up. Tell me.



More details. How many miles do you have; when was it serviced (I.E. air filter, plugs, plug wires).

Any codes stored?
Old 12-07-2009, 08:33 PM
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He also has a Gryphon with custom tunes.
Old 12-07-2009, 08:38 PM
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Originally Posted by AZFX4
He also has a Gryphon with custom tunes.
Then the first thing I'd do is put the stock program back in. If the smooth idle is restored, I'd then be calling the company to get the custom tune(s) fixed/reprogrammed.
Old 12-07-2009, 08:39 PM
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I told him give Bill a call or ask on PHP forum. Good point about putting it back to stock.
Old 12-07-2009, 08:55 PM
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Ya I'm going to give him a call tomorrow i just wanted to see of anyone had this happen before. Are they able to put more fuel to the idle to fix this maybe
Old 12-08-2009, 12:39 AM
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might check gas cap ...mine did this once and i didnt have the cap all the way on...it didnt throw a code either..
hope you get it lined out


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