Why is my engine not heating up?
Why is my engine not heating up? There are a few potential culprits for why your car engine coolant may not be heating up: Coolant Level - The first thing to check is the coolant level! Air Lock - If you have had a coolant leak, or have recently drained and filled the system, then you may have air lock. How do you know when your heat is off? 4 Signs of a Broken Heater (And How to Find Repairs in Phoenix)Your Heater Isn't Warming Up. When a heater fails to warm up, we usually assume it's broken. Noisy or...