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Old 05-01-2011, 04:30 PM   #1
daveringstaff
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2.0 Cylinder Head Temp readings

Hey all,

I wanted to try and have a thread where those with the 2.0 zetec dohc can post the temperatures they get when in the odometer testing mode so I can see if I am within the right temps with my focus.

When city driving after the car is warm, I run between 91* Centigrade and 97* Centigrade.

On the highway at high speeds upwards of 65mph I have gotten between 104* Centigrade and 107* Centigrade.

I'd like this thread not to turn into anything other than objective posting of the temps you are getting between city driving and highway driving.

And this is only for the 2.0 dohc zetec engine which uses a cylinder head temperature sensor and not an engine coolant sensor.

If you don't know how to get to your odometer test mode, follow this link:

http://www.focushacks.com/index.php?...%20Test%20Mode

Then go to the reading that has 0## C (that will be a number where the hash marks are)



Really hope we can see a bunch of your readings! Heading on a road trip and would like to be sure my temps are normal!


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Old 05-01-2011, 09:54 PM   #2
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Old 05-02-2011, 01:12 AM   #3
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I don't mind getting some numbers for you, do all zetecs use the cylinder head temp sensor, or do some use coolant temps?

Matt
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Old 05-02-2011, 08:17 AM   #4
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All Focus Zetec use Cyl Head Temp but its convirted to water temp

180 thurmostat and a tune for the fans and you can lower the water temps a good bit

Tom
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Old 05-02-2011, 08:23 AM   #5
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Quote:
Originally Posted by 1turbofocus View Post
All Focus Zetec use Cyl Head Temp but its convirted to water temp

180 thurmostat and a tune for the fans and you can lower the water temps a good bit

Tom
Its not a fan issue. The higher temps only happen at highway speeds, 65mph+.

I made a video, sorry for quality, but you can see my speed with the corresponding CHT. As you can see, it gets to 102* C before I get off the highway, then from 0mph to 40mph, the temp goes down to 94* C

Fans work, radiator is brand new, water pump is brand new, radiator cap is brand new, thermostat is brand new (180* F stat) and has been flushed twice recently.

Here is the video...

http://www.youtube.com/watch?v=Yuc_4Se5vV8
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Old 05-02-2011, 08:24 AM   #6
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Quote:
Originally Posted by drostedrummer89 View Post
I don't mind getting some numbers for you, do all zetecs use the cylinder head temp sensor, or do some use coolant temps?

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I'd love to see your numbers since you have same year and model car as I have.

Definitely would like to see your temps at 70mph for 10-15 minutes.
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Old 05-02-2011, 09:34 AM   #7
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Lets see 102 is what 214-216 thats very normal for the Zetec engine most run in the 219-225 range and I have seen higher

Adding a 180 thurmostat wont do much for lowering the temps if the fans are not reset to come on sooner

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Old 05-02-2011, 11:25 AM   #8
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WHoa,

So, you're saying that the 2.0 zetec dohc engine on the ford focus normally runs at temperatures above 107* centigrade while at highway speeds?

This is what my mechanic said. This is what you say. However, plenty of foci owners say that is too hot, and i called 5 ford service centers and they don't know anything about cylinder head temps. So... I wouldn't recommend taking your car to a Ford dealer =\

You would think a Ford service center would be aware of normal engine temps and fluctuations. They didn't even know about the testing mode with the odometer :(
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Old 05-02-2011, 01:34 PM   #9
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I see you have two threads going about the same thing. So, I posted on both. lol. Like I posted on your other thread, maybe check your cat? Causing heat? Also, I have put in a new t-stat, and it was bad!

http://www.focusfanatics.com/forum/showthread.php?t=257067

Mine might run cooler due to the modified t-stat. It always has coolant flowing regardless if t-stat is open or closed. This might be cooling it sooner and keeping it cool? I don't know. Maybe someone else will post a pic of what they get to compare?

Post from your other thread I posted my car on there and here.

I made sure car was warm. I also drove it 5 miles before getting on freeway (to make sure it was warm). I then drove it 10 miles and got 78*C (same on the way back which would give you 20 miles). No traffic. Temp outside is 70*F in sunny California. I have a 180* stat and the copper plug (1/8" hole) removed for more coolant flow if t-stat is open or closed. Sorry for the shacky pic, not young anymore
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Old 05-02-2011, 03:05 PM   #10
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See I said 98 is normal for most modern cars, 102 is nothing to worry about. You said 107 at times, which is probably a little high. I will do it on the way home tonight, around 7 pm eastern.

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