poindexter1

So driving down the road 60 mph truck runs great , then out of nowhere it loses power , so I'm forced to pull of cause it won't go over 30, get it towed to my local ******* and they say it's fixed , I get my truck drive for about 300 miles it does it again , 3 times to be exact , each time the ******* say , no problems , no codes we can't fix it we don't know what's wrong with it , had injector harness replace cause ******* said that's the problem , well(wrong) still the same thing , any input from you guys would be great . I'm at a stand still , asked ******* to check (fca) , injectors , harness again , they say alls good , HELP!!!!!!!!!

poindexter1

Anybody got an idea? Really could use some advice.

JJPage

Rail pressure relief valve? Or your COV on the CP3 could be malfunctioning. Remove the Edge?

Also, read this:https://www.dieseltruckresource.com/...ad.php?t=81936

Hippie816

Changed the fuel filter lately? Cheapest thing to check first

.boB

Codes from the OBDII port are primarily designed for emissions testing. Most manufacturers have also added other diagnostic info to help out the tech. But, the point is, just because there's no code, doesn't mean there's nothing wrong.

Get back to the basic: Fuel and air in the right ratio at the right time. That's all it takes to make a diesel run - simplistically speaking.

Check air pressure, check fuel pressures.

poindexter1

removed the edge,
still have the same problem,has been off for a couple of months , want to put it back on.oil and fuel filters changed every 3000 miles , i know thats over kill , just never wanted problems, 98,000 miles never an issue.

poindexter1

going to keep you all posted on the outcome , thanks to all who posted up , i really appreciate the info , i checked the a/c wires long ago ,i been reading all of this info on this forum before i bought my truck, so i have been well informed for quite some time , thanks to you guys .

poindexter1

If anyone cares just lil update , bad injector (one) tried to make the dealer replace all 6 , not happening ,mek-a-nik wanted to and tried ,rejected , o well , picked it up today,runs good , but lets see how long,i'll keep posting if any more issues.