Temp Deltas

["WTF" Stroker]

ECT would run 178 to 182. It got to 200 going up hill.EOT would run 190 to 198. top out at 207 going up hill. When i left the house it was 34.On the flats ECT was 179-180. EOT would be 195-199. At a idle for ten minutes they both was the same (178). Truck was pluged in and the temps was around 140 before start up. going down the road it took a bit for the oil temp to catch up with the coolent temp. If the cooler was bad would the temp climb rapidly?

I bet I need a new T/STAT. If I change the stat would it make the oil temp rise also making the cooler say it needs replaced

[TwinTurboStroker]

Is it puking when your going up the hill?

["WTF" Stroker]

Originally Posted by TwinTurboStroker

Is it puking when your going up the hill?

I have had this truck for 3 months now have not lost a ounce coolant. I drive 180 miles a day to and from work so i check the vitals every 2 days

[TwinTurboStroker]

I don't think your t-stat will mess with the deltas like that, sounds like your EGR is clogged and your oil cooler maybe starting to go.....can't hurt to try to clean your EGR though

["WTF" Stroker]

What is the right way to test this?

[busa dave]

your thermostat is bad. replace it and then re-check your delta's

["WTF" Stroker]

Im not going to worry about it. I just ordered a new oil cooler and egr kit. I want the piece off mind that the SOB won't plug up when I'm in the middle of nowhere

[duc796]

Do the coolant flush while you are at it and replace your tstat while you are in there.