Question

2008 Dodge Grand Caravan SE with engine code P0128, what is the meaning?

Answer 1

Hi there,

This code usually is related to the thermostat itself. If it's sticking closed and the van is overhating, then it's a problem, on the other side is if the van isn't getting up to temp, the same code will appear. Start with a thermostat replacement.

Answer 2

P0128 DODGE - Thermostat Rationality

Read more: https://www.autocodes.com/p0128_dodge.html