How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
Type Your Chevy Question Here...
GM Tech (Cam) is online now
A new question is answered every 9 seconds

p300: code intermittent checked cylinders..running rough

Customer Question

03 yukon and getting p0300 code intermittent comes on then goes off checked cylinders at idle and all of them are working properly but still running rough ??????????
Submitted: 7 years ago.
Category: Chevy
Expert:  GMWrencher replied 7 years ago.

Hello, I will do my best to help answer your General Motors Vehicle questions.

2 things come to mind


Intake gasket vacuum leaks


Clogged fuel injectors


Have you had any data scanned and reviewed by a professional?