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Discussion Starter · #1 ·
I beleive my thermostat is stuck open. Here is what happens.

I start the car, it will take 15-20 minutes before it gets warm at idle. Then I give it 3-4 shots of gas too 4000rpm, and it's right back down again. My fan is always on (recent issue since the B18 swap) and it's always cooling down the fluid. I get no heat inside of car. Like it gets 'warm' enough to drive, but I've never shut off my fan since winter started because I was too hot. It also never gets warm when I drive. When it does reach the gauge, it goes up to 1/4. When I go fast or rev, it cools right back down. The engine is never hot enough to not touch it, regardless of how long I've been driving.

I'm 99.9% sure it's the thermostat, but I've never had one fail on me so I want confirmation. I don't know if both hoses get hot at once, -15C cold start ups are not something I like to stand next too feeling hoses. I'm afraid of what all the cold driving will do internally to the engine. I don't want it hurting it for no reason. Just wanting confirmation. Thanks.
 

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i just recently bought a DA beater, and i have the SAME issue with it. B18 too coincidentally. Takes 20 mins to warm up, and 2 mins of driving to get cold again. :?
 

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Sounds like a bad thermo to me. I had to replace 3 of them in 3 different cars and they all showed similar signs as you described. I'd say go for it. There a whole 9 bucks at most auto stores. GL with it.
 

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Discussion Starter · #4 ·
From my experience I'm not buying things like that from Partsource. We bought a generic aftermarket one for my friend H22, lasted maybe 2-3 weeks before the same symptons as me came back. Only his damn engine will actually reach operating temp. Mine doesn't :evil: .

I'll pick one up from honda and swap her in.
 
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