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 john aka eauto Your Own Question
john aka eauto
john aka eauto, The Car Guy
Category: Kia
Satisfied Customers: 15063
Experience:  15 years foreign and domestic shop owner and technician
6149662
Type Your Kia Question Here...
john aka eauto is online now
A new question is answered every 9 seconds

2003 Kia Sorento with 112,000 miles. Used stethoscope,

Customer Question

Hello,
2003 Kia Sorento with 112,000 miles. Used stethoscope, clicking noise coming from valve train, piston area of engine block. Clicking increases with revving of engine. There is a sludge build-up in engine. Have not been good with regular service. Do you have a suggestion or should I buy new engine?
Submitted: 11 months ago.
Category: Kia
Expert:  john aka eauto replied 11 months ago.

if the motor is full of sludge a new motor is the easiest. You can try running the motor with half oil half dextron atf for a few days it will clean a lot of the sludge out of the motor.. But usually sludge means oil starvation issues..

Customer: replied 11 months ago.
Maybe we can look at this in a more constructive way. Using a screwdriver and stethoscope I listened and found the noise to be coming from around the second or third piston/plug area. Beyond throwing in transmission fluid and oil, what would you do (specifically) as a Kia mechanic to fix this issue without buying a new engine and what type of labor charge would be average for your area?
Expert:  john aka eauto replied 11 months ago.

it would need to be torn down and the failure found.. all parts would need to be hot tanked.. so it would be a rebuild you could pull the valve cover and see if the failure appears to be in the head, But at that point with a sludge motor we would first attempt to flush the sludge out.. The upper end is likely starving for oil

Expert:  john aka eauto replied 11 months ago.

we charge 90 dollars a hour and on a sludge motor we would write the estimate for replacement.. Its a liability thing last one to touch it usually gets the blame... and if its full of sludge and carbon its a unmaintained motor..