How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask roybelding Your Own Question
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 6036
Experience:  Shop Froeman for Freightliner Trucks
Type Your Medium and Heavy Trucks Question Here...
roybelding is online now
A new question is answered every 9 seconds

I want to lower my coolant temp it runs now at 190F degrees

Customer Question

I want to lower my coolant temp it runs now at 190F degrees i want it to run around 175F 180F degrees. Is there a way to do this it is a cat c15 6nz
Submitted: 11 months ago.
Category: Medium and Heavy Trucks
Expert:  roybelding replied 11 months ago.

good morning my name is ***** ***** I will assist

190 is on the button for running. lowering it will make it not as efficient.

you can change the thermostats to 180. it may be hard finding them as not many manufacturers make them.


Customer: replied 11 months ago.
But the truck seems to run much smother my other 2 trucks run at 175 from facotry same motor as well
Expert:  roybelding replied 11 months ago.

ok, I understand.

replace the thermostats and see what happens. if it runs too cool, it will code for coolant temp.


please dont forget to rate me as it is the only way I get paid for my efforts