Zezxy

Hey all,
Took my car out for a drive for the first time in a few months after deleting emissions and putting in a new thermostat. I drove for 15 minutes, parked for 20, then drove home. The entire time temps were about 80c. After I parked, I turned the car back on and drove into the garage, turned the car off, and noticed steam from the coolant overflow and a weird noise going on even with the car off. I also noticed my temps were around 110c in this small time frame to my garage.

Could this have something to do with me installing a thermostat wrong? My ECU coolant sensor being broken (I have an aftermarket guage)? The emissions removal? Is this really a blown seal and requiring a rebuild? What is this strange noise?

Video does not show coolant steam but does have the weird noise. Thanks in advanced for the help.

AE_Racer

iTrader: (1)

Where is your aftermarket gauge sensor plumbed into your cooling system? Did you bleed after refilling?

Zezxy

It's in the throttle body coolant line. I did bleed it afterwards.

AE_Racer

iTrader: (1)

Ok. I wouldn't jump to a blown seal btw. Make sure the thermostat is installed the right way.

If you used an OEM thermostat, it opens fully around 82c. Temps will go up after driving the car and parking, I notice on summer days mine will eclipse 100c pretty quickly after driving to temp and then shutting off. Its possible you still had an air pocket in the system.

My process for bleeding that I followed from a few members here. Place car on an incline with front up, I just used my driveway. Remove TB coolant line, use a lisle funnel, fill system. If you get coolant out of the open TB line before it stops taking coolant, great.. If not I just fill to top and then replace TB line. Typically get air out of TB line either way which is what you want. Idle, topping off as necessary until fans cycle on and off a few times. I've had my cooling system open about 3 times in the past year since getting my car and haven't had any issues afterwards doing it this way.

Sgtblue

iTrader: (16)

First thought is the noise is just related to the steam/coolant pressure setting up some resonance on the cap(s).

Zezxy

I'm using an FC thermostat, I'm pretty sure I installed it correctly but it wasn't 100% snug, was somewhat pushed out and I couldn't get it perfectly in. I'll give that bleeding a shot this weekend hopefully, thanks! Hopefully it is just that and not the blown seal!

Okay, I was really curious what it was, but that makes a lot of sense. Thanks!

Sgtblue

iTrader: (16)

From experience the t-stat gasket seat can get a little fouled with deposits. I use a small flat-bladed screw driver and a nylon scrub pad to clean it up. Make sure the jiggle-pin is at 12:00 o’clock.

Zezxy

Yeah, it was installed correctly.

Looks like I just didn't bleed it right. Took the Tbody hose off to air it out while filling it up and now it's running perfectly, finding difficulty getting it over 70c. Thanks a bunch for the help guys!

Well I was trying to close the thread but I guess I can't do that.