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Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 8854
Experience:  I am ASE Master Truck Certified.
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Oil pressure is dropping, its a c15 pete 2005, yes cat told

Customer Question

oil pressure is dropping
JA: What's the make/model/year of your truck? Engine type?
Customer: its a c15 pete 2005
JA: Are you fixing your truck yourself? What have you tried so far?
Customer: yes cat told us it was the oil plunger relief
JA: Anything else you want the truck mechanic to know before I connect you?
Customer: no
Submitted: 7 months ago.
Category: Medium and Heavy Trucks
Expert:  Cat Man replied 7 months ago.
Thanks for asking your question. I will try and help you out.
There are several things that can cause low oil pressure. Including the oil plunger relief valve.
You could have fuel in the oil.
Weak relief in the oil pump
Relief valve in the oil filter housing.
Or worn rod and main bearings.May I ask a question. Did Cat elaborate on why they said it's the oil plunger relief?

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