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2010 E-350 misfiring

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Old May 2, 2016 | 04:04 PM
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Devince
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2010 E-350 misfiring

Hello!
I have a 2010 E350 v8 (92k) that misfires at 40 mph. I brought the van in for a tuneup (oil, filter,pcv, plugs) The van ran perfect for 3 weeks and then the misfiring came right back! My mechanic gave me a bottle of fuel injector cleaner but that didn't work either. Engine is saying random misfire. What do I do?
 
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Old May 2, 2016 | 04:54 PM
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Im50fast
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There's a decent chance your catalytic converters are bad. Disconnect them at the engine and look down in the exhaust pipes.
Pretty common problem here, and very similar symptoms
 
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Old May 3, 2016 | 05:52 AM
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Have you checked for DTC's yet? If so what were or are they?
 
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