ECT vs EOT

[knlhunt2000]

So I have installed the Edge CTS and I have been watching my temps. I made a 39 mile trip today and WOW. Outside temp about 38, running about 70-75 MPH and my ECT stayed between 188-190 and my EOT reached 240 and stayed. Really, how long will it run like that?

Second, My turbo was sticking so I cleaned it and reinstalled. I am trying to watch the VGT% while drive and I really do not know what to expect to see to ensure the turbo is working correctly.

Thanks guys

[TOPFUELF250]

There's no way your EOT should reach 240 going that fast for that long. You may have a problem. My truck's temps normally run about 186-188 ECT and 192-196 EOT in 60 degree temp.

[Term3]

Never seen an oil temperature that high but if your oil cooler is completely, and I mean completely, blocked off then that would explain it.

[westcoaststrokin]

I may only see 210 towing heavy in 80* temps. Sounds to me like the oil cooler is shot.

[Pistolgrip426]

It's alway's good to check the oil sensor(sending unit) before you panic.

[mhatlen]

Originally Posted by knlhunt2000

So I have installed the Edge CTS and I have been watching my temps. I made a 39 mile trip today and WOW. Outside temp about 38, running about 70-75 MPH and my ECT stayed between 188-190 and my EOT reached 240 and stayed. Really, how long will it run like that?

Second, My turbo was sticking so I cleaned it and reinstalled. I am trying to watch the VGT% while drive and I really do not know what to expect to see to ensure the turbo is working correctly.

Thanks guys

Yea that's a problem for sure and your at the level where the egr cooler is getting probably next to nothing for coolant flow.

First thing is after truck sits overnight check ect and eot temps, they should be within a degree or two when engine is cold. If they are the same then you have a problem.

To anwer your question how long will it run like that: NOT VERY LONG!! Your at the point where you are going to burst your egr cooler and if blows enough coolant into engine the head gaskets can fail as well.

Your in need for a oil cooler and egr cooler. You will want to replace both of them for sure and you should go with a Bullet Proof or Sinister egr cooler for reliability reasons.

[mhatlen]

As far as the turbo goes the PCM is constantly adjusting the percentage of VG its going to be lower percentages at lower throttle inputs to hold energy and increase with throttle inputs. If it's constantly in flux at different speeds and loads then all is well.

[Snake]

See my thread about the install of a Bulletproof Diesel oil cooler. I was seeing almost the same numbers as you and I think the only thing that prevented catastrophic failure was a missing EGR and synthetic oil. Put it this this way: you're already on borrowed time and it needs to get fixed ASAP.

Bulletproof Diesel Oil Cooler INSTALL