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High oil temp Mack mp8. New oil no codes. 2014 chu. Water…

High oil temp...

High oil temp Mack mp8

Mechanic's Assistant: When was your last oil change? Have any error codes popped up?

New oil no codes

Mechanic's Assistant: What's the make, model, and year of your car?

2014 chu

Mechanic's Assistant: Is there anything else the Mechanic should know before I connect you? Rest assured that they'll be able to help you.

Water temp 180 oil 235

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Answered in 7 minutes by:
5/23/2021
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 1 year ago
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,623
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
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Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 1 year ago

On your issue, I would check the oil temp reading after a cold soak and make sure it is not biased. If it is reading fine and the oil quality is fine I would replace the engine oil thermostat actuator. We have been seeing these go bad. It is located in the oil filter housing next to the piston cooling jet actuator.

Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,623
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
Verified
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Mike Mcmillan
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,623
6,623 Satisfied Customers
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel

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