Overheating

Tiny
AARON KUPER
  • MEMBER
  • 2003 FORD ESCAPE
  • 3.0L
  • V6
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
My car started to overheat on the highway. I popped the hood, looked in and there was some antifreeze that had blown out of the gas tank. I replaced the thermostat, and now it does not seem to be burping correctly, there's a lot of air stuck in there and I can't figure out how to get it out. Also the heat is blowing cold. I tried running it with the cap on, and still the same issue. With the cap off, it send to take more fluid, but I can still hear the air in the lines. Help!
Tuesday, April 6th, 2021 AT 3:52 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,055 POSTS
Hi,

If you have no heat, I agree. There has to either be air in the system or if it low on coolant. Do me a favor. Take a look at the attachments below. They are the drain, fill, and bleeding directions specific to your vehicle. Read through them and let me know if that is how you did the job.

Let me know.

Joe

See pics below.
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Tuesday, April 6th, 2021 AT 7:22 PM
Tiny
AARON KUPER
  • MEMBER
  • 2 POSTS
Hi Joe! Thanks for your response. Yes that is how I drained, filled, and bled the car. It is very strange, it's acting as if the call needs to be off to release the pressure, but from reading about it, this is not the case, and I will just lose coolant. I've revved it up at 3500 RPMs to figure 30 seconds, trying to help it release, then turn the vehicle off for 1 minute after. I related this several times, and there's still no heat, and it starts to overheat. I may need to get it vacuumed it at this point, it's just costs a lot for something that's usually so easy.
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Tuesday, April 6th, 2021 AT 8:14 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,055 POSTS
Hi,

That is odd. Do me a favor. When the engine is cold, loosen the return line (heater core hose at the firewall). With it lose, have a helper start the engine and see if you can get air to come out and then coolant. Since you have no heat, something is preventing the coolant from entering it.

I attached a pic below of the heater hoses at the firewall. If I recall correctly, the one on the right is the return.

Please keep in mind, this will get messy. LOL Protect your eyes and wear old clothes.

Joe
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Wednesday, April 7th, 2021 AT 7:08 PM

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