Does the P0300 and the P0101 code make the vehicle run hot or could it be my fan?

Question

Do the P0300 and the P0101 code make the vehicle run hot or could it be my fan? I have a 2002 Chevrolet Blazer S19 6 Cyl

Answer 1

Hi there,

Neither of these codes should affect the cooling system. Only if you have a leaking intake manifold gasket and are losing coolant there should it be the cause. This can also cause the random misfire code you are getting.

Answer 2

P0101 CHEVROLET - Mass Air Flow Sensor Performance
Read more: https://www.autocodes.com/p0101_chevrolet.html

P0300 CHEVROLET - Cylinder Misfire Detected Random Cylinders
Read more: https://www.autocodes.com/p0300_chevrolet.html