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Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 8336
Experience:  I am ASE Master Truck Certified.
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C13 cat is popping noise through the air intake : It has no

Customer Question

C13 cat is popping noise through the air intake
JA: We'll do all we can to help. Tell me a bit more about what's going on so the Heavy Equipment Mechanic can help you best.
Customer: It has no fault codes but it barely has any managod presser
JA: Is there anything else important you think the Heavy Equipment Mechanic should know?
Customer: That's it has a little vibration in motor when u drive it but it still has power
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Heavy Equipment Mechanic about your situation and then connect you two.
Submitted: 4 months ago.
Category: Medium and Heavy Trucks
Expert:  Cat Man replied 4 months ago.
Thanks for asking your question. I will try and help you out.
Does the yellow check engine light come on?
Customer: replied 4 months ago.
Customer: replied 4 months ago.
It has no falt codes and there are no lights on the dash at all
Expert:  Cat Man replied 4 months ago.
Thanks for the information.
Unfortunately I have this many times.
There are two things I have seen cause this.
The first is a failed Iva housing. They can fail and hold open an intake valve.
Second is a intake valve in the head is bent.
You can have a cut out test ran to determine which cylinder has the miss. Then swap the Iva housing with another set of cylinders.
Please reply back if you need more help or have more questions. I am happy to assist.
Expert:  Cat Man replied 4 months ago.
Hey. I just wanted to see how things were going. Please let me know if you need more help. I am happy to assist. If my information was helpful, please leave a good or higher rating so that I receive credit. Thanks.

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