Okay,somebody tell me where does your coolant temp read, normal driving, and pulling a load. I have a stock 05 5.9 with a piece of crap auto that only lasted 124,000 miles. About a year ago, i pulled the muffler off,gained about 1 mpg. Noticed after that when pulling my tractor, (about 8k lbs), the temp goes above the 200 mark very fast when in the throttle.I called Banks, they said i was getting more fuel,needed more air. I added k and n filter,still don't have a programmer. No change. Second gear then proceeded to burn up, spent 2200.00 on the trans and a three disc converter. Now its worse, will this converter run hotter? Best i can tell it is climbing to 220 or so maybe 230 VERY FAST. One more thing,I stuck a resonator tip on the back to get the black off my bumper. The tip has baffles in it and i can't see smoke when i used to .Am i running lean? Lot of questions from a dumbass thats been working on cars and Harleys for 35 years. Anyone?

 

first off



Now are you talking engine temps or tranny temps?

If engine there are a couple things going on.


1. What are your tranny temps? The tranny has a heat exchanger that uses engine coolant to keep it at optimal temp. Of your tranny is running crazy hot it can heat soak you coolant.

2. When you are under heavy throttle towing, such as getting up to speed or going up a hill, you are under alot of boost. High boost creates hot air, that is why you have the intercooler to cool that air off, the issue is that the intercooler is right in front of the radiator. All the air that goes through the intercooler gets VERY hot trying to cool off all that boost and then heat soaks the radiator. Pretty much your radiator is getting hot air fed to it instead of nice cool air from outside. This would be my guess.

3. You could also have a stuck thermostat. If it does not open you wont get any flow through the radiator. These engines are very efficent and w/o working hard with a load they moight not over heat. Work them hard though and its a different story.

I also sent you a PM that should help.

Bobby

 

thermostats can stick and not open all the way. also make sure everything is clean in front of truck. make sure fan is working good.

 

 

 

Don't know tranny temp, but was just rebuilt,no change.While talking to an old freind today about the timeline on this problem, I realized I had put an aftermarket waterpump on about the time this all started, we were thinking maybe it doesn't flow as well as the cummins. Now how do I get to this p.m. from rswords?

 

 

Welcome to the site! You should introduce yourself and tell a little bit about yourself and your truck! Post some pictures!!!!

 

 

if you go all the way to the top the page at teh top right there should be a spot that says 1 notification or 1 Private Message (PM) or something click on that.