Thermostat removal

ALEXIS NIEVES CARREON

MEMBER
2007 CHRYSLER 300
2.7L
V6
2WD
AUTOMATIC
135,000 MILES

Hello, I removed the power steering to get to the thermostat. I unscrewed top and left screw but I’m having trouble getting to the bottom one. I removed the tube connecting to the thermostat. How can I get to the bottom screw? It’s a nut connected to a screw that comes out together.

8 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good morning,

The nut should come off without the stud being removed with it.

https://www.2carpros.com/articles/replace-thermostat

I attached the procedure with pictures below for you.

Roy

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Wednesday, May 12th, 2021 AT 3:41 AM

ALEXIS NIEVES CARREON

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Yes. But once both nuts are removed, the pipe can move out of the way. Underneath that are another set of nuts that are attached to a screw that comes off together. I removed one (left side) but the more bottom one I’m having trouble finding the angle let alone fitting a socket/wrench in there.

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Wednesday, May 12th, 2021 AT 7:05 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

Okay, I understand. If there is another bracket on top of the nut, then you need a thin open-end wrench to hold the inner nut while you release the outer nut.

Yes, it is tight. I go in from the left front wheel well to access the housing.

Roy

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Wednesday, May 12th, 2021 AT 7:18 AM

ALEXIS NIEVES CARREON

MEMBER
5 POSTS

I will try to see if removing the wheel helps. I got enough room in the engine bay but the bolt is pointing downwards at a 45 degree ish angle to the air compressor unit. I might just need to remove the compressor to have the clearance.

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Wednesday, May 12th, 2021 AT 8:51 PM

ALEXIS NIEVES CARREON

MEMBER
5 POSTS

This remaining nut is underneath the assembly for the heater pipe. This nut holds the thermostat assembly in place. 3 bolts hold it. 2 above the 3 hold the heater pipe on top of the already existing bolts. Heater pipe is removed. All I need is to remove the remaining nut holding the thermostat in place.