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Cat Man
Cat Man, Caterpillar Engine Expert
Category: Heavy Equipment
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Experience:  23 Years Caterpillar Engine experience.
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I have a diagnostic code of 287.5 and 287.

Resolved Question:

I have a diagnostic code of 287.5 and 287.7 coming up and a check engine lite what is it and can I run it safely till I can find a dealer
Submitted: 6 years ago.
Category: Heavy Equipment
Expert:  Cat Man replied 6 years ago.

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


287.5 is an open circuit on the #3 Intake Valve Actuator. 287-7 is an Intake Valve Actuator Valve Not Responding code.


The most likely cause of these codes is a failed Intake Valve Actuator Solenoid. I see this alot.


It will not hurt your engine to run it until you find a dealer, the Intake Valve Actuator system will not be operating with these codes and you may not have full power.


Please let me know if you have more questions or need more help.

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