Overheating at idle

10

Asked by Guru1QPSW Sep 16, 2019 at 05:35 PM about the 2008 Ford Focus S Coupe

Question type: Maintenance & Repair

Ford Focus 2008. No leaks. New water outlet.  New thermostat.  Full with coolant.  Fan works.  Turing on interior heater full blast does not help.  I turn off the engine when the temp gauge needle hits the 3/4 mark.  What else could it be?

8 Answers

8,795

Vacuum fill it. That condition usually means air is in the system. Sometimes jacking up the right side of the car and let it run helps push the air out.

2 people found this helpful.
10

CITYLIFE404 How long do you suggest I run it and are you talking about the passenger side?

10

Im gonna do that now. It makes sense because when I changed the water Outlet I disconnected some things for easier access. One of those things was a hose of some kind that let out air when I disconnected it. I wonder if that's how air got in the system.

10

Hm. After 19 minutes i had shut it down because the needle was near the red line. What is strange to me is that the engine isn't bubbling over and there's no steam coming out of anywhere; no indication that the car is over heating except for the dash gauge. Anybody have ideas?

1 people found this helpful.
8,795

It’s not really over heating. Sometimes air gets trapped by the sensor and when the air heats up it shows like the car is overheating

Glad to hear it seemed to be resolved. I found this because I was overheating at idle. Blower fan fuse 30 amp was blown. Easy fix!

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