looking at a 6.0
 

Hey guys im looking at buying a 2006-07 6.0 what are some things i should look for while searching or do you have any better suggestions for a truck

Get an OASIS report from the Ford dealer, it will tell you all of the vehicle warranty work done at Ford.

Look for white residue around the coolant cap.

If you had the software it'd be nice to see what the difference in temp is between the oil and coolant, that would tell you if the oil cooler is clogging.

Also be nice to test the FICM, but not a huge deal.

When looking at any diesel I prefer to hear it start ice cold. If you get there and it's already warmed up, it could mean issues when you try to start it cold.

Ask about maintenance on it, how often, what was used etc. You only want a truck that has had FORD or motorcraft (or international) fuel and oil filters. No oil filters that have their own caps. Fram oil filters are ok too in this one case.

i believe my scanner can check the temps whats wrong with other brands of filters i cant belive they would be that different and i agree about starting it ice cold and what would the white residue mean

The 6.0 tech section has a ton of info on them. :c:

white residue around the degas cap would point to a head gasket problem or maybe even the egr cooler. Either way if there is white anywhere on the degas tank it most likely has problems, 1 out of maybe 10 I would say had too much coolant and blew the excess out but be weary either way.

Yes and no, I don't know of any 6.0 that still has it's stock degas cap (that works properly). A few thousand miles after I did my HG/studs/EGR delete/oil cooler replacement/coolant filter, I noticed ol' girl was puking out the cap, new cap and another 15k miles later she's still running great. The stock caps are garbage, but not to be overlooked, replace it with a new cap (usually not a clicker) and check on it every now and then, if it's still boiling over then you could have a HG/EGR failure (80% of the time a failed EGR/oil cooler will cause the HG failure, other 20% is when you're pushing too hot of a tune without studs).

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BTW the 80/20 is based on failures that I have heard/read/dealt with and is not reflective of concrete evidence from shops nationwide (some could be 90/10, 60/40 etc). But those are the 2 primary causes