Sorry, just saw this.
My first thought is that you blew an injector.
Normally you'll see white smoke if it's sticking a bit, but not much black.
If the white smoke continues or gets really thick (like mosquito fogger thick) at idle, then more than likely you cracked an injector nozzle or the body.
If water got through, it does a number on the CR injectors....basically it turns the fuel stream into a high pressure water jet and that's all she wrote. Water is THE worse thing on common rail injectors.....that and excess pressure.
If that's the case, it's likely you'll need more than 1 injector.
When you bring it to the dealer (and I hate to say it, but it's your cheapest option for this part), tell them you need them to do an Injector Kill Test. If the truck is out of warranty, this will cost you about $65 for the diagnostics, but IT IS your cheapest / best option; otherwise you'll be throwing parts at it....and that gets expensive.
This allows the tech to individually shut down injectors to determine which one(s) is / are bad. When you shut down a good one, the engine stumbles and adjusts to maintain idle. When you shut down the bad one, the smoke goes away and the idle smoothes out. Then you know which are bad.
But, like l said, if it's water damage, you likely have more than 1 that is damaged.
Last edited by Coal Train; 05-04-2010 at 05:41 AM.