BAD VIBRATION

[Hundred Dollar Diesel]

Hey guys, Im a warehouse manager and I sent one of my drivers on a delivery in a 05 F250 with the imfamous 6.0L. He call me a few mins ago and said that when he pulls up to a red light and is at idle the truck is vibrating a lot more than it should. I am wondering about motor mounts, intercooler boots, or even timing. When he gets back here I am going to have to look at the truck and determine what to do with it. I know about the failures with head bolts and EGRs but is there something I should look for that would cause this problem? I cranked the truck up this morning and noticed no vibration but that is with the engine being cold. Any help pointing me in the right direction would be greatly appreciated.

[dannyboy950]

You need to scan it with a good scanner capable of reading live data to see what is going on. Also a quick look underneat at the harmonic balancer to see if there are any obvious signs of it comeing apart.

[ModernDieselLegion]

Get to a diesel shop and ask them to diagnose it. Save your time and pain on the diagnosis. Pay 120 to get a full scan. FICM numbers, oil pressure demanded vs actual. Check your coolant. Check your oil.

[sinner6.0L]

misfires or overfilled oil come to mind

[Hundred Dollar Diesel]

I found two codes, a turbo underboost code probably from a cracked intercooler boot and a EGR code so we are going to get a EGR delete kit and a set of aftermarket boots. Thanks for the ideas though. I do appreciate it

[MN6.0f250]

EGR delete won't fix the rough idle, there is something else going on

[sinner6.0L]

I didn't think of that, it could be an EGR stuck open, pulling the valve out would confirm that pretty quickly

[mint-6oh]

Originally Posted by MN6.0f250

EGR delete won't fix the rough idle, there is something else going on

If the rough idle is caused by the valve being stuck open a delete will fix it. As mentioned above pulling the valve out would confirm this