The Car Dr is all calls this segment; Justin from PA is calling in about a P0420 cat efficiency code on his VW Jetta; Ron walks him through some diagnostic steps and helps break it down into simple terms. Jesse (from Chico California) is up next with questions about changing transmission fluid on his 2013 Ford F150. He has been told several different answers to the question and now turns to Ron for the definitive answer.

• Find out more about us at www.cardoctorshow.com 
• Follow Us On Instagram  -   @ronananian   
• Visit our You Tube Channel for auto repair tips and videos 
• Call Into The Car Doctor Hotline 24/7 (855)560-9900   
• Live Call In Show Saturdays 2-4PM Eastern Time 

See omnystudio.com/listener for privacy information.