Miss in hard pull with DD UFM any advice?

[Kent Kuykendall]

Just towed with my new DD UFM and DD 2's. It misses or bucks in a hard pull mostly at around 22-26. Truck did not do this with my dad's DD TTFM. Any Ideas? Could it be the pump wire connection? I checked it at the schotch lock and it seems tight.



Thanks for any help



Kent

 

[Doc Tinker]

Kent - did you replace the injector tubes when you installed the injectors?



Doc

 

[CUMINNTSTRKN]

don't forget about your fuel filter.



jim

 

[Kent Kuykendall]

Injectors and new tubes have been in for a year with no problems. I have a Fuel pressure gauge with two sending units with no fuel pressure problem before or after filter.



Kent

 

[dieselboy25]

Check the pump wire again

Kent,

My truck had a rough idle after I installed my Comp. Checked the pump wire connection and reinstalled it with a better scotchlok and the problem went away. Down side is that I have a more noticeable nick in my pump wire

Hope this helps,

Eric

 

[Kent Kuykendall]

I Put a regular scotch lock on the wire instead of the T style that came with the Box and it seems to be better now. I may just solder a conection at the wire and then I will know that it is not a conection. Has anyone done this?



Kent

 

[dieselboy25]

Check this post out

Kent,

Here is a post you might want to look at.

https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=11213&highlight=stumble

Eric

 

[Kent Kuykendall]

I thought that it was better but after driving it again it sometimes misses. I read the thread, maybe I will solder the thing. Sure seems as though the schotch lock it tight though. I'll call DD tomorow and ask them before I solder it.



Kent

 

[Tom W]

I soldered mine , no problem in 40K miles.

 

[Kent Kuykendall]

Tom,



Were you having a problem like mine before you soldered it?



Kent

 

[Tom W]

Kent, I was having various problems with the initial installation of my Banks system. Missing, intermittent power, check engine light, etc. Soldering fixed it, no problems since.

Tom

 

[Kent Kuykendall]

Soldered my pump wire connection and still intermitten problems. Any other advice?



Kent