Need a good 6.0 mechanic in Pueblo

[jesus_man]

My father-in-law has an '05 that he's had trouble with for quite a while. Dealer in Pueblo said they fixed it by replacing the ECM, but it's still doing what it was before, so he's looking for someone better to take it to. Looking for recommendations in the Pueblo area.

The two I know of are Elite Diesel and Pueblo Diesel injection. Anyone else to recommend? Thanks!

J.D.

[Evil Eye]

Elite definitely knows what it is doing on the 6.0L's, although they can be quite expensive. You do get what you pay for in this case.

What is it doing and what codes are you getting? Maybe we can help narrow down where the problem might be.

[jesus_man]

Well being they he's already dumped $1500 into the truck, he hates to put a lot more into it, but right now it's simply not reliable. So I'm not sure he has a choice.

I need to discuss with him what it's doing again, but from what I remember, it'll start when cold no problem. But after it's warmed up and he shuts it down, it's hit or miss whether or not it'll fire again. It'll sit there and tune over and never fire. So it seems heat related to me. And like I said, the dealer replaced the ECM. I know little about the 6.0's, but would welcome any help!

J.D.

[Evil Eye]

Sounds like a high pressure oil leak. Since the engine uses oil to pressurize the diesel fuel in the injectors (much like an injection pump), any leaks like this will cause issues, most noticeably when restarting after the engine oil is up to operating temperature. The main reason is that the engine oil is just viscous enough when it is cold to allow the engine to fire, but when the engine oil is hot, it won't build the same pressure and the PCM needs to see at least 500PSI at the ICP sensor to allow the injectors to fire.

Elite definitely has experience in this regard, although we have helped quite a few folks to troubleshoot and resolve this problem themselves. This is a fairly labor intensive process, so it can be quite pricey if you have someone do it for you. I have included a link below to help you with some common questions concerning the 6.0L engine that Mitch (PGreenSVT) has pulled together.

--> LINK <--

[jesus_man]

You're the second guy to tell me that. Must be pretty common.

Labor intensive - ouch! I'll send that link to my Father-in-law and see if he reads it. Thanks!

J.D.

[Evil Eye]

The 05's were probably the most notorious for the HPO leaks. The first design STC fitting was a leading cause, although the standpipes and dummy rail plugs also caused this issue. I have an 05 and it was a pain in the rear to get diagnosed way back when my truck started having problems. Now, we know a LOT more about these issues and so it becomes easier to identify.