what should i do


Asked by jaymckenna Apr 19, 2013 at 03:12 PM about the 2004 Ford F-350 Super Duty Lariat 4WD Extended Cab LB

Question type: Maintenance & Repair

truck will start with ether but wont idle let off throtle it dies no codes come up just put remufatured moter in

12 Answers

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Do any codes come up? Do you have the initial fuel-injection system on there?


no codes come up yes its a feel enj. 6.0 diesel


assume its not a diesel? is it a 5.4 or a 6.8?


question answered nevermind ha. A diesel that wont idle ewww!

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is the computer seeing any data from the O2 sensor, TPS, EGR, MAF, MAP, any eyes and ears of the computer?~ a diagnostic check will reveal any inconsistencies in the data stream~

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it isn't a Jasper remanufactured, they have a 100,000 mile warranty on there if it is~


Wow I almost cannot help my self here judge. how many diesel engines have oxygen sensors? No throttle plate on a diesel so it has no TPS. you have a long list of things to check my friend. I would be happy to list them but first can I ask who put the motor in?

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check for fuel pressure


what is your icp reading? unplug the sensor and see if it will idle

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computer is wise and knows the diagnosis, may not be sharing with a check engine light, but stores usable information. So cable throttle is what your telling me there kbro, no tps....well okay then~


No cable either. Diesels dont control how much air comes in it controls fuel. No throttle plate it takes in as much air as it can each time.

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Gas pedal has a sensor on it that what it uses to add or subtract fuel

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