Gen 3 3SGTE won't heat up

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scottjackson1209

New member

• Dec 15, 2014

• #1

So ever since I did my gen 3 swap in my ST165 I have had a problem with the engine not warming up all the way. It has only gotten worse since I installed a Mishimoto rad. I can let the car idle until the fans come on and it gets up to operating temp (takes at LEAST 15 min) but as soon as I start driving and get air going through the rad the temp drops like a rock. So bad that my heater has barely any heat coming out of it...Could my T-Stat be stuck open? what is the opening temp of the stock 205 t-stat? I know KO racing has one that opens at 160F but I would definetely like a hotter one if possible!

 

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MWP

New member

• Dec 15, 2014

• #2

Yup, replace the thermostat.

 

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UtahSleeper

Active member

• Dec 15, 2014

• #3

MWP":3kll9987 said:

Yup, replace the thermostat.

Click to expand...

What he said. My Altima did the same thing. Replaced with just a stock thermostat and all was fine.

 

underscore

Well-known member

• Dec 15, 2014

• #4

Same deal in my Jeep, on the plus side they're super easy to do on our cars.

 

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yotaboy93

Member

• Dec 15, 2014

• #5

Yup replace your thermostat is sounds like it's stuck open.. are you getting any heat at all out of your vents

 

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scottjackson1209

New member

• Dec 15, 2014

• #6

Barely any. It well get up to temp if I let it idle but even turning the heater on takes enough heat out of the engine to drop the temperature quite a bit

 

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Street_Chally73

New member

• Dec 15, 2014

• #7

T-stat for sure.

 

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scottjackson1209

New member

• Dec 15, 2014

• #8

Sweet guys thanks! I will hopefully get to that in the next week before Christmas. Anyway here is a picture of my ST165 all put back together after my accident!