Coolant temperature sensor location?

Tiny
GWOODBOY01
  • MEMBER
  • 2001 MITSUBISHI ECLIPSE
Hello im am trying to locate the coolant temp sensor on my eclipse can u please tell me where it is?
Thursday, July 2nd, 2009 AT 4:35 PM

25 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Its on rear center of engine near the coolant outlet Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.


https://www.2carpros.com/forum/automotive_pictures/12900_cts_27.jpg

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Thursday, July 2nd, 2009 AT 4:54 PM
Tiny
ECLIPSE210
  • MEMBER
  • 15 POSTS
  • 2000 MITSUBISHI ECLIPSE
  • 160,000 MILES
I am bout to find the ect sensor do you know where it is located on my 4G64 engine or 2.4L. I have looked all over the internet and no one will say.
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
By the thermostat housing.

Why are you chnaging it?

Roy
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ECLIPSE210
  • MEMBER
  • 15 POSTS
I had asked what could cause my car to idle low and they said to check my ect sensor but I will check it if it is still good if not I have a new one. Don't know if you could see my other questioned I asked it is titled idles low.
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Ect will not be your failure.

Could be dirty throttle body. Vacuum leak or bad throttle body.

Roy
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ECLIPSE210
  • MEMBER
  • 15 POSTS
I have cleaned my throttle body and looked for a vacumn leak and found none. I have replaced the egr valve and the solinoid and spark plugs and tps sensor and the iac valve and still having idle low issues to where it wants to die. But only does it when it is warmed up. I had asked this same question earlier and the guy told me to check the coolant temp sensor which I just replaced since it was only 17 dollars to replace just drove it around the block and does seem to be better but just seeing why you are saying it is not my failure, plus how could I tell if my throttle body is bad
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
It would have to be smoke tested to see if it is leaking from the throttle body bushings.

Roy
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Did you clean the ISC (IAC)?
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ECLIPSE210
  • MEMBER
  • 15 POSTS
Yes I did
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
What is the idling speed at operating temperature?
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ECLIPSE210
  • MEMBER
  • 15 POSTS
It should be like 4 or 500 but now it's like 300 and below from all the stuff I have done it is getting better but just doesn't stay at normal idle speed
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
That is an indication of a fault with the ISC. I would have that rechecked.
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ECLIPSE210
  • MEMBER
  • 15 POSTS
Isn't that the iac if so I have a brand new one in already
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Yes it is but is the ISC OEM?
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ECLIPSE210
  • MEMBER
  • 15 POSTS
Duralast
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Not all new parts are confirmed perfect.
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ECLIPSE210
  • MEMBER
  • 15 POSTS
I don't know how to respond to that
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
I have told you what I think is the problem but if you don't want to follow, there is nothing else I can do.

Good luck.
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ECLIPSE210
  • MEMBER
  • 15 POSTS
Ok well it is under warranty so I will send it back and get another one
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Monday, January 18th, 2021 AT 11:37 AM (Merged)
Tiny
ECLIPSE210
  • MEMBER
  • 15 POSTS
I know it's so frustrating that I have replaced so much that I would think it would be good now but I cleaned out the iac area again then ran it in my driveway for awhile so far it idles good but I have not ran it on the highway yet and then see if it idles normal again will test it tonight and will let you know but I do appreciate everything you have talked to me about
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Monday, January 18th, 2021 AT 11:37 AM (Merged)

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