Rolls Canardly here,
I wanted to post this as a heads up for everyone with a 3126 Cat engine that develops a miss.
I started having electrical miss in #4 cyl.
Dealer hooks up to computer,(for free,) and says it is electrical. I thought; Here we go again!
My case - easy fix happened to be - pushing in on the plug to computer on driver side of block.
Plug is held in w/screw and I then tightened about 3/4 turn and problem solved.
Even was able to cancel appointment with Dealer for the next day to fixing it!!!
I was looking at possible new harness for $400.00 plus labor.
Don't overlook the easy stuff first.
(This thing never ran so good!)
(Rolls down one hill; Canardly get up the next.)