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E350 bucking/surging/running rough
I am working on a 1999 Ford E350 5.4.
It has an issue with running rough (bucking/surging) when climbing a hill at around 40 mph.
constant load (not too much throttle). it will be running fine then all of a suddne start bucking/surging quickly. I haven't been able to get it to do it on 5 attempts today but the other day test drove it with the customer and it did it on key just as he said it would.
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R.I.P. - 94 Jeep Grand Cherokee Limited 5.2L V8 Quadra-Trac, 3" Budget Boost, K&N FIPK Gen II (Cold Air Intake), FlowMaster American Thunder (Exhaust).
W.T.T.F. - 1998 Jeep Grand Cherokee 5.9 Limited - Deep Slate Pearl - K&N FIPK GEN II (COLD AIR INTAKE), Altezza Tails and Crystal Clear Front end light with HID Kit and NP242 Swap.
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