Need Help od E350 Intermittent buckingn on Hard Acceleration
I have a 2006 E350 with 6.0, EGR Delete, Cat. Delete and SCT running Extreme Street. Also have a 2000 F350 Crew with Long Bed. The E350 has been in the shop for 6 weeks under the care of our area's best Diesel mechanic.
In need of help trying to determine why the E350 has engine issues when an extreme load is put on it. Dumps the Black smoke, bucks and then it will only shift through gears manually. When it does shift, it shifts super hard. All goes away if you shut it off and restart.
Problems started after getting the High Pressure Oil Pump, oil cooler and other work done, when it originally had a no start, no code issue. The FICM was replaced with a Diesel Ron replacement and the ICP sensor has been replaced. The mechanic has even checked the harness, since it was taken loose at firewall when FICM was replaced. Also, it throws no codes with this intermittent issue.
This E350 van is a screamer, except for when this intermittent failure occurs. Dang thing drove me to buy the 2000 F350 that I am really pleased with.
PLEASE HELP !