6.5L Turbo Diesel

Hello,
My name is Dan and I own a 6.5L Turbo Diesel.

They say admitting you have a problem is the first step, now I just have to figure out what is the next one


BTW,
First post in the GM truck forum

Ya, addiction sucks! Hang in there, LOL

Is it a labor of love,or can you get the quirks fixed and have a relatively reliable truck?

Hi Dan.

Is your the original formula deisel or the ultra emmission version? (Just curious to see if you can run it with Veggie oil.)

Bambam wrote:

Is it a labor of love,or can you get the quirks fixed and have a relatively reliable truck?

It has been pretty reliable just not as powerful as a CTD, PSD or Dmax.
Don't drive it much or haul as much so why upgrade?
Wouldn't mind doing a CTD swap someday but I need to get a big shed up first.

Ulmus wrote:

Hi Dan.

Is your the original formula deisel or the ultra emmission version? (Just curious to see if you can run it with Veggie oil.)

It should be veggie approved since it uses a low pressure(1500psi) rotary injection pump.

Isn't that actually a Detroit?

Not sure Detroit Diesel likes owning up to being involved in the design of that motor. I think GM corporate engineers sprinkled their magic pixie dust on the prints.

I believe it was a Detroit as was the 6.2L

if it's paid for and not causing you to many problems keep it beats having payments, unless you need it for work

Diesel Dan wrote:

Not sure Detroit Diesel likes owning up to being involved in the design of that motor. I think GM corporate engineers sprinkled their magic pixie dust on the prints.

It was never designed to be anything more than a light duty naturally aspirated engine in the 150HP range. If used as originally intended, it's a reliable engine.

Turbocharging overstressed parts of it and the '94 and up electronic pump had some reliability issues. The 2001 and up AM General version is quite an improvement.

Even the non-turbo 6.2s were know for broken cranks, cracked blocks and failed head gaskets by the GM techs. Navistar addressed the block issues when they took over casting duties and I now have an enhanced Navistar engine in my truck. Another down side is that it was designed with only 2 compression rings on a 21.5:1 engine so they experience quite a bit of blow by and the oil turns black very fast.