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Cat Man
Cat Man, Caterpillar Engine Expert
Category: Heavy Equipment
Satisfied Customers: 8954
Experience:  23 Years Caterpillar Engine experience.
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My goes away and comes a sensor issue

Resolved Question:

My truck is showing regen required but it won't regen and then it goes away and comes back. Could this be a sensor issue or is there a way to force regen?
Submitted: 5 years ago.
Category: Heavy Equipment
Expert:  Cat Man replied 5 years ago.
Hi. Thanks for using JA! I will try and help you out.

If the light comes on, then goes off, it sounds like it may be doing a regen.

What does the light look like that is coming on?
Customer: replied 5 years ago.
I'm getting the caution regen symbol. The one for parked regen.
Expert:  Cat Man replied 5 years ago.
Thanks for the information.

Have you tried to do a manual regen?
Customer: replied 5 years ago.
As far as I know to do regen on truck you hold down regen button. It will start doing regen then it stops after a minute or two. Then "no warnings" will flash and then the regen required message comes back
Expert:  Cat Man replied 5 years ago.
I see. Thanks for the information.

It sounds like there is a problem with the regeneration system if it starts and then stops. I have seen this before. When this happeens, it is most often a fuel delivery problem to the regen system. Or a problem with what is called the ARD head. Aftertreatment Regeneration Device. If it was a sensor problem, the system will not even start a regen.

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