what is this part for

Your photo is so close to the component I cannot tell were we're at under the hood........step back and try again.

Rob

It almost looks like part of the A/C system.

it's it's a ac double connection thingy. TWEETY BIRD told me

I agree with above.....my first thought is the A/C junction block.......that's why I asked for a step back photo.

Rob

Robby said:

I agree with above.....my first thought is the A/C junction block.......that's why I asked for a step back photo.

Rob

Click to expand...

Looks like its above the hot side of the FMIC.

Best I can do since they omit parts from the site... whatever #4 is

TRANS OIL COOLER for 2015 Chevrolet Cruze

That's the temperature control thermostat for the Automatic transmission auxillary cooler that's part of the 1.4L Turbo. I believe Alldata calls it a thermo connector.

The intent is to block off the aux tranny cooler when the engine is cold to allow all fluid to warm up under a cold condition. It's the same reason why the 1.4L Automatic will not shift into 6th gear when it's cold until minimum temperatures have been reached. If you live in an area above 32F, you probably have never seen this issue occur.

Do you have the full bumper cover off to see this part, or are you looking from under the car? I'm guessing the bumper cover, or maybe even the fender is off to get that shot.

I wonder if this is another poster, "rebuilding" a 1.4L that's seen front end damage.

Thank you Carbon02.

That is exactly it. Is it supposed to have any sensors attached to it? When is it supposed to open up and let the fluid into the radiator? I see that the pipes (transmission to this device are around 68c and nothing is going through. Drove around for 20 min or so and the radiator is still cold while the pipes are hot.

The cover was off when I took the pic but i put it back on. And yes this car did have some front end damage but radiators stayed in tacked. It ripped this part off its plastic support so it just hangs there.. one of the pipes was cracked so i sealed it.

Anyway to test if it is properly functioning?? What temp does it open up?

carbon02 said:

That's the temperature control thermostat for the Automatic transmission auxillary cooler that's part of the 1.4L Turbo. I believe Alldata calls it a thermo connector.

The intent is to block off the aux tranny cooler when the engine is cold to allow all fluid to warm up under a cold condition. It's the same reason why the 1.4L Automatic will not shift into 6th gear when it's cold until minimum temperatures have been reached. If you live in an area above 32F, you probably have never seen this issue occur.

Do you have the full bumper cover off to see this part, or are you looking from under the car? I'm guessing the bumper cover, or maybe even the fender is off to get that shot.

I wonder if this is another poster, "rebuilding" a 1.4L that's seen front end damage.

Click to expand...

I'm not sure what temperature it opens, I'm solely guessing it's 160-180F. If you google the Torque App here on the forum you'll find posts of people buying bluetooth dongles to plug into the car, and using their Android phone to read the temperature from the sensor in the transmission.

$20 for the bluetooth adapter, and $5.00 for the app.

The fluid always runs through the connections in the radiator, only when it gets warm enough do connections to the top auxillary cooler open.

This would probably make one side of the metal block hot, and the other cold. Transmission oil temperature runs 150-181F. It can go as high at 190-205F, but I'm not sure how to get it that hot. I've made several logs recently with ambient temperatures of 45-50F, and after 30 miles of stop and go highway driving I can only get to 181F.

Chances are maybe your ok..

Cold trans temps fluid is routed back to the transmission instead of going to the cooler. Thermostatic controlled