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Psi..c7..the oil pump is going bad. is it possible for the oil pump

 
Cat Man's Avatar
  • Answered by:Cat Man
  • Caterpillar Engine Instructor
  • Positive Feedback: 98.8 %
  • Accepted Answers: 3275
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Customer Question

I have very low psi on a cat c7 engine. I believe the oil pump is going bad. is it possible for the oil pump to go bad and the hui pump still work well enough to start the engine?

 

Optional Information:
Make: Caterpillar
Model: c7
Year: 2010
Engine: c7 diesel

Already Tried:
I checked the psi at the sending unit, replaced sending unit. Psi was low at sending unit. Bypass sending unit to check gages. they worked properly. Only thing is oil pump or ECM.

Submitted: 498 days and 13 hours ago.
Category: Heavy Equipment
Value: $23
Status: CLOSED

Accepted Answer

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Expert:  Cat Man replied498 days and 13 hours ago.

Hi. Thanks for using JA! I will try and help you out.

Yes it is possible. The minimum low idle engine oil pressure spec is 6 psi. That is all the oil pressure needed for the HEUI pump to operate.

Let me know if you have more questions or need more help.

Expert TypeCaterpillar Engine Instructor
Category: Heavy Equipment
Pos. Feedback: 98.8 %
Accepts: 3275
Answered: 1/5/2012

Experience: 23 Years Caterpillar Engine experience.

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Expert:  Cat Man replied498 days and 12 hours ago.

If you have more questions. Just reply back to this question. I am glad to help.

 
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