Post YOUR Hatchback here
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By bigJOE671
#292952 Since its cold this time of year. I noticed when i drive may car the temp gauge needle always drops to cold every time once my car starts cruising. So I think my thermostat is bad.

My motor is a first gen B16a. The Thermostat is from a 2000 Si

Went to the dealership and bought this for $46
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Thermostat is located here under its housing
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Had to remove my intake to get better access
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Removed these 2 bolts to free the housing
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Pulled off the housing and this is what underneath...My messed up thermostat, I took note in the direction its facing
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Here what is looks like when i pulled it out.
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The rubber that supposed surround the opening is mostly gone
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Now putting the thermostat in...I used a new gasket, better safe than sorry. . I remembered the ridges. because there is only one way the thermostat is going to go in.
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Now i installed everything. Then started the car with the radiator cap open. I put water as the radiator water level was low. Had to wait till the motor was fully warmed up to put more water cuz the thermostat was still closed.
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Couldn't find out if the thermostat fixed the problem. It was 70 degress today compared to the usual 30-40 degrees. So I will post later if the problem got fixed.
By stubrun
#292990 :thumb:
Fixed my problem!