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Old 10-19-2020, 10:59 PM   #1
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2019 Jayco 29 ft v10 Ford e450 misfire

I recently traveled from Ft Lauderdale to Virginia, ans I encountered an issue with a chatter noise in the engine..Engine is only 7500 miles as this is a fairly new 2019 RV. I went ahead and took th RV to an autopart and ran computer checkup and got codes P0300 ramdonly misfire. I used all gas in the trip and placed new gas and the chatter noise got a bit better...but still goes on and off.

Unit*seems*to run OK on the flat I-95 at 60 mph, but when I try to accelerate, I begin to feel the 'chatter' of misfire. This also occurs when I'm going slow,,,20 mph...coasting to a red light and when I give it a little throttle to maintain speed, I get the chatter again????

Unit idles very smooth, starts immediately with touch of key, and begins to accelerate OK, Like when I am accessing the interstate from an exit, then as the rpm's increase, the chatter begins and I have to let off of the accelerator and try to gain speed slowly. Also, when I force a downshift, it seems to run ok for a few seconds, then it goes into the chatter mode again and I have to 'nurse' it to gain speed.

I am thinking something external to the engine, maybe fuel pump, egr, vacuum leak.......???

Engine still under warranty and im just guessing and asking to myself....what could have happened? Whats is causing this issue?
Im heading back to fl and thinking to take the Rv to a Ford Dealer, but really wanted you guys Opinion
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Old 10-20-2020, 02:30 PM   #2
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I had the same issue after gassing up, put in 3 cans of Iso-Heet , a can of Lucas fuel treatment , changed the fuel filter and it still took awhile to work out all the bad gas but it did eventually straighten out
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Old 10-20-2020, 11:55 PM   #3
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Thanks so much for your input/message. I will do that
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Old 02-23-2021, 06:27 PM   #4
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I have the same issue it usually will happen within 40 miles of a fill up or it won't happen. I will try this remedy.

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Old 02-24-2021, 03:35 PM   #5
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CarlosRamses, this may not be your issue, but then again....?

This YouTube video has the noise that those of us with this problem were hearing at 2100rpm.

If this is your noise, here is the rest of the information;
Gary, mid-west Georgia. 2017 Sunseeker 3010DS, 2018 GMC Acadia AWD flat (toad)
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e450, fire, ford, jayco, v10

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