Coolant being pushed out the Reservoir.

[outdoorsman310]

maybe one of your coolant lines blew up internally and is causing a restriction

Topic

[kangliongto]

thanks for the replies!_x000D_
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My Radiator is about a year old. My water pump has been replaced with the timing belt just a few months ago._x000D_
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As far as i know the cooling fans work fine. They go on when the engine is at running temp._x000D_
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Just replaced the the

[Third Gear]

A good friend of mine had the same problem with his 2005 Civic. He’s is super meticulous about his cars. He changes the oil every 6-7 thousand miles with Mobil 1. He regularly changes all the other fluids and so on. Car is immaculate._x000D_
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He developed this

[dreamer2355]

The block tester is pretty accurate._x000D_
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Did you ever pressure test your cooling system? And a big +1 on testing the radiator cap._x000D_
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Flushes can also cause more harm than good unfortunately if you used a flush chemical._x000D_
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Alot of over heats are also caus

[kangliongto]

Man I hope it’s not a bad block but who knows where my second engine came from? I’m praying and keeping my fingers crossed on that one._x000D_
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Car idles fine and goes thru stop and go fine as well. The only time it runs hot is if enough coolant runs out the r

[spelunkerd]

Last year I had a similar experience with a generic thermostat that I put in at the same time as replacing the water pump. That new thermostat was sticking closed, causing overheating and the same kind of problems you seem to have. So, I would not assume

[Ryan]

I say take a look at the cap and the thermostat. I would recommend swapping out the t-stat for an OEM one, a lot of cooling issues can be solved by putting in an OEM part (Subarus are particularly bad with this). Also, possibly testing or swapping out the

[spelunkerd]

All kinds of things could do this, even something as simple as a defective reservoir cap not maintaining pressure. I would start with the basics. Eric did some great videos on coolant system diagnostics that are worth a look. If you go through those you w

[college man]

are the cooling fans coming on? are they spinning the right way?_x000D_
correct temp t-stat? if you turn the heat on full does the temp go_x000D_
back down? how old is the radiator cap?_x000D_
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http://www.youtube.com/watch?v=hUzOTnsWImI over heat

[hbvx]

I’d imagine most block testers are about equal, then guys? Autozone, Napa have differing kits for about $5 difference._x000D_
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The thermostat and radiator cap(you did say it was OE?), are both new. It’s probably best to advise on getting a Honda OE stat, BUT i

[twiggy]

You should use an OEM Honda thermostat to replace the one from Autozone.

[college man]

I agree with the replacement of the auto zone t-stat. heres_x000D_
a video to help bleed the cooling system when the work is_x000D_
done._x000D_
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http://www.youtube.com/watch?v=zUpXgAJ1gjU

[EricTheCarGuy]

ANYTIME you have an overheat with a Honda the first thing to do is bleed the air from the cooling system ESPECIALLY if work has been done on the cooling system.

[hbvx]

^Ah, interesting that Honda thermostats have a specific design to allow air to be purged._x000D_
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Well, then, that does change things. Come to think of it, I don’t know what thermostat is in the housing on my engine’s cooling system. Ugh! Of course, my symptom

[Third Gear]

Yes, ditch the Autozone stuff. I missed that in your other post. I always prefer OEM thermostats._x000D_
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Anytime you want to test a thermostat get a small pot and boil (or almost boil) some water and dunk thermostat in there. Open = good. If it doesn’t = bad.

[kangliongto]

Okay gonna change the thermostat with the OEM Honda one and do the usual burping/bleeding of the cooling system again after._x000D_
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will see what happens afterwards_x000D_
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thanks

[Author]

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