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 Wayne Your Own Question
Wayne, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 9463
Experience:  worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling
Type Your Medium and Heavy Trucks Question Here...
Wayne is online now
A new question is answered every 9 seconds

I have a question

Customer Question

Submitted: 2 years ago.
Category: Medium and Heavy Trucks
Expert:  Wayne replied 2 years ago.
Hi i'm Wayne
I will try to help you
what is your question
let me know
Customer: replied 2 years ago.
Are you there sir
Customer: replied 2 years ago.
how are you. I will try to let you know my situetion. I have a 14 liter detroit with egr. I did the overhoul because one line passed oil to the water,,afther that overhoul the truck running at 200 degree temperature and dont go down even with the fun on. I change the water pump,i clouse the egr,i check the radiador,,the oil pressure for my concerm do not work with high pressure of a ingine just with a overhoul donne and the oil work more hight than the water checked by computer. Do you think that there is something wrong at the time when the overhoul was donne. Yoel vega. Ph#7866562794
Expert:  Wayne replied 2 years ago.
HI , Thank you for that
I suggest you back flush radiator ,
reason being that you had oil in cooling system
this cakes up in the cooling fins, and blocks coolant flow
actually your best bet is to remove radiator,
send to a radiator shop , and have them steam clean it
If this helped you, Please rate my answer
Customer: replied 2 years ago.
If is not the radiator , what do you think. I just put another radiator
Expert:  Wayne replied 2 years ago.
Thank you for that
Ok, EGR cooler is blocked, that will cause a over heat
Customer: replied 2 years ago.
That is the last one that i need to check..what do you think that can stock there. The 14 litter have termostato in?my doud is why if before the overhoul the truck was running good.
Expert:  Wayne replied 2 years ago.
I can not say why,it was OK before
until you worked on it
thermostat put in back ward ??
no o-ring on thermostat ???
Expert:  Wayne replied 2 years ago.
Just following up with you
did my answer help
Customer: replied 2 years ago.
When i finish i let you know. Today i going to check the oilcooler and oil pump sytem,,if after that the truck keek doing the same ,i wll check the calibrection head o some bushing tha be stoking the oil pressure
Expert:  Wayne replied 2 years ago.
Ok Let me know,
also 200 degree is not that high , it has 190 degree thermostat
Customer: replied 2 years ago.
Yes but my termostato are of 185. And i have two more trucks with the same ingine. Even when the fun put on the temperature dont go down. And oil keep high more than the water,i think there is something heating the oil.
Expert:  Wayne replied 2 years ago.
check the EGR cooler

Related Medium and Heavy Trucks Questions