I recently replaced engine. I was hoping when I did that no problems, but I was not so luckily. I have the codes of p0430 and p0420, and the A/C was working for three days. All of a sudden it quit cooling. It blows cool for about two minutes then cool air goes away. It does that every now and then. So basically cool air gone. I have checked the Freon it is full. It as a new one.
I cannot remember if I asked this before, but my oil was changed and he put O'reilly 5w30 in it. I had bought Valvoline synthetic 5w30 to be added. Do you think it would have anything to do with the codes coming up? Do I need to put the synthetic one in? Also, what do you think about the codes and air? New engine I put in suppose to have 44,000 miles on it. Help please.
Monday, June 4th, 2018 AT 11:32 AM