Engine light and heat issues.

Question

If engine is below 2000 rpm the heat turns cold. Engine light with code p2181. Coolant is topped off can't find out what is wrong.

Answer 1

Hi there

This sounds like you have an air pocket in the cooling system. Usually it's trapped in the heater core. This is why you don't get heat and could be causing the code.

P2181 JEEP - Cooling System Performance

Read more: https://www.autocodes.com/p2181_jeep.html