Compression Ignition Addict
Join Date: Apr 2007
Thanked 241 Times in 223 Posts
Mentioned: 75 Post(s)
Quoted: 323 Post(s)
Feedback Score: 0 reviews
The Edge products can be expensive, but you want something that can pull engine data from the PCM instead of having only 4 or 5 manual gauges, and the Edge CTS2 will do the job. That monitor will be $450 or more. A phone app and the adapter is cheap. Again - I would go that route first so you can cheaply check out the truck before buying. You may very well need the money for an oil cooler replacement.
Since the 6.0L engines were never equipped with a fuel pressure sensor, that information is not available from the PCM and needs to be obtained separately. Lots of threads on this. You need an adapter, a sensor, wiring tied into a keyed power source, and a gauge. Some people also install a fuel hose w/ a 45* fitting onto the adapter so that the sensor can be installed at the end of the hose in a more accessible location (note - this is somewhat involved and should be done after the purchase).
To check out a used 6.0L truck, I also like to add a tee in the vent hose from the radiator to the degas bottle. Run a long hose out from under the hood and add a pressure gauge to it. Secure it somewhere where you can see it. Get the engine up to temperature again and record the degas bottle pressure. Then carefully (with a thick towel) open the degas cap and vent the pressure. The engine can still be running (or not). Put the cap back on securely and drive it some more. See what the degas pressure goes up to. Include a few WOT runs to see if high engine load spikes the pressure. If it does, it is probably due to leaking head gaskets.
I know you said it was bulletproofed, but that doesn't necessarily guarantee that head gaskets won't ever leak.
Were head studs installed in the previous bulletproofing?
Last edited by bismic; 09-26-2018 at 08:26 AM.