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That happened to me once. I just added Di-Electric grease to the boots.
Ibleedfordblue, how are your coil boots.
all of the boots are new. and they all have die-electric silicon in them. i have used it for over 10 years on all plug wires. the problem was there before i changes the plugs and coils and is still there. although it does have more off the line power it still loses it at 3500 in all gears. just bogs out and wont climb any higher unless i back out of it and let it shift gears. it is driving me nuts. i have checked all of the basics.
You did a fuel psi test underload while driving ?
Being the quality of our fuel nowadays its possible that the pump sock in the tank is clogged or the pump is going bad.
and has the epc pressure been chk at the tranny?
Rich
just recieved a new tool, TRAN X 2000. IT CAN TEST ALL ELECTRICAL COMPONENTS OF THE TRANNY. ALREADY HAVE THE PRESSURE GAUGES. i am going to have fun with this. it can test them on the bench!! as soon as i can get the truck back in the shop i will thoroughly check it out again. thanks for all the feedback guys.
well it turns out that the accel coils i put on it were crap. 6 out of 10 failed. went to ford and got oe coils and motorcraft plugs and it now runs great!
We been saying for years here that the MotorCraft stuff WORKS!
Dang it! LISSEN UP..... quit tossing your money at all the fancy dancy doo dads... most of the time they are just hyped up crapola! The Factory MotorCraft stuff WORKS! and it is not dramatically more expensive...in many cases it is much less expensive
As we all have said before 75% of this aftermarket crap is not worth the time an effort to install it.
Wish we would have known ,might have been able to save you some grief.
Glad your fixed
Stay away from aftermarket plugs also
Rich
well it turns out that the accel coils i put on it were crap. 6 out of 10 failed. went to ford and got oe coils and motorcraft plugs and it now runs great!
Glad to hear your fixed and running!
I'm really shocked that 6 out of 10 would have failed so soon. I have just scratched Accel off the list of good parts. Thanks for reporting back with the fix.