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Discussion Starter #1
I haul a 7K trailer all day long, and when I shift at 40 mph down to 1750 RPM with OD off, I have a horrid misfire. I cannot get it to even downshift with the throttle while going up a steep grade, it will just keep laboring along without shifting to power through the mess.

Took it to the mechanic today and his scanner came up with an issue on #'s 2 & 8. Sound familiar to anyone?

Bowl has been drained, CPS replaced, new air and fuel filters, good oil level.

Thanks in advance. Dropping her off Wednesday and trying to have a general idea before he tries to take me for house and home.
 

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Discussion Starter #2
Also, what was once a problem only at 40 MPH is now all over the speedo but always around the 2K RPM mark. Also comes and goes in intensity.

2002 PSD 7.3 with 153K on the odometer.
 

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International Threat
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13,087 Posts
Any codes?

Where are you located?




Odd that they aren't neighboring injectors but at least they're on the same bank - maybe UVC harness...
 
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