coolant flange replacement, question

**phoenixr2** · 07-31-2008 09:44 PM

Just trying to research to see if I am in for any surprises. Why do people recommend replacing the ECT sensor, what is the reasoning for this?
thanks!

**audinaut** · 07-31-2008 10:07 PM

The sensor's have been known to go bad for others and is not an expensive item to purchase. If you are DIY'ing on the coolant flange, it's just easy to replace since you have everything out of the way anyway to get to the flange. I just did my flange last weekend at 76K and did replace my sensor also -- will keep the original as a backup.

Clicky to AW post

**dino** · 08-01-2008 12:37 AM

This tool is a lifesaver. Use it to remove the clamps. Wear eye protection.

http://www.sears.com/shc/s/p_10153_1...0P?vName=Tools

This will help you see what you're doing. You'll feel blind without it.

http://www.sears.com/shc/s/p_10153_12605_00941603000P

Good luck... this DIY was a major PITA.

**audinaut** · 08-01-2008 12:48 AM

Very much agree about the clamp plier and mirror shown. I already had the pliers, very necessary on the two squeeze clamps for the rubber coolant line -- get the one shown. Actually had to stop in the middle of the job to go buy one of those mirrors -- big help to see how to get the bottom bolt/nut off the coolant flange. I also had to stop and go buy gear rachet wrench set along with the socket set I show in my AW post to get the top bolt off the flange -- very small clearance called for a very low profile socket and rachet setup. Make sure you have some extra zip ties for the ones you cut away, and replacement hose clamps for the vacuum lines that you disconnect.

**absolutegtr** · 08-01-2008 12:53 AM

+1

I couldnt imagine doing this job with that tool (1st pic)

**dino** · 08-01-2008 01:14 AM

a pic from the small damage on my coolant flange. it's at 12 o'clock.

hook me up w/ some

reps.

**dougyfresh** · 08-01-2008 06:38 AM

That tool is a godsend. I did this job with the SAI in place and without that hose clamp tool. What a pain in the ass. I did this job when I put my new engine in and the SAI was gone. What a simple job. The SAI system makes this task 10x more difficult than it should really be.

**phoenixr2** · 08-01-2008 06:57 AM

am I looking for this one

Original Equipment Supplier - Coolant Temperture Sensor ES#8268
2-pin black sensor for water temperture

or this

Meyle - Coolant Temperature Sensor With O-Ring ES#8485
Revised Green 4 pin sensor. With square/round connector. Replaces faulty black style. learn more