Location of Coolant Temperature Sensor

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sealuva
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Year and Model: S70 1998
Location: Florida

Location of Coolant Temperature Sensor

Postby sealuva » Mon Aug 15, 2011 5:17 pm

Can someone show me with a picture of where this is located. I saw one on this site somewhere but the picture was horrible. 1998 S70

Location and picture. Thanks all. :)

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jblackburn
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Year and Model: 1998 S70 T5
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Re: Location of Coolant Temperature Sensor

Postby jblackburn » Mon Aug 15, 2011 5:18 pm

Image
Thermostat housing right by the power steering pump. CTS is the brass plug you see here.
'98 S70 T5
2012 Chevy Cruze LT 6MT


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!

sealuva
Posts: 55
Joined: Sun Aug 14, 2011 11:44 pm
Year and Model: S70 1998
Location: Florida

Re: Location of Coolant Temperature Sensor

Postby sealuva » Mon Aug 15, 2011 5:22 pm

Is it as easy as unscrewing it and taking it out and plugging in a new one? I want to change both the thermostat and this part. Thanks

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jblackburn
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Re: Location of Coolant Temperature Sensor

Postby jblackburn » Mon Aug 15, 2011 5:28 pm

You'll need to drain a bit of coolant first. Probably a good time to change it (should really be done every 3 years or so).

http://www.matthewsvolvosite.com/2009/0 ... 0-or-xc70/
'98 S70 T5
2012 Chevy Cruze LT 6MT


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!

sealuva
Posts: 55
Joined: Sun Aug 14, 2011 11:44 pm
Year and Model: S70 1998
Location: Florida

Re: Location of Coolant Temperature Sensor

Postby sealuva » Mon Aug 15, 2011 5:37 pm

Do I need to drain this for just the sensor or just to change the thermostat? Also is it as easy as unscrewing it and screwing in the new one? Thanks again for all your help.

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jblackburn
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Re: Location of Coolant Temperature Sensor

Postby jblackburn » Mon Aug 15, 2011 5:40 pm

The Torx bits on the housing can be a real pain to get out. Spray both of them over the next few days with lots of PB Blaster and hopefully they should come right out.

Dealers, if they're close by, sell new bolts that are metal instead of the crappy aluminum they used for the ones probably still in there.

The coolant level will need to be lowered before you open up the thermostat housing or you'll spill it everywhere. Thermostat housing needs to be removed to really get access to the CTS plug on a 1998 model - then yes, just unscrew the old and and screw the new one in. Take a look at that link above.
'98 S70 T5
2012 Chevy Cruze LT 6MT


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!

Ozark Lee
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Re: Location of Coolant Temperature Sensor

Postby Ozark Lee » Mon Aug 15, 2011 5:44 pm

As Justin said, you will need to remove the upper portion of the thermostat housing to get to it and you should drain some coolant before you remove the cap. I remove the lower radiator hose and drain out 1/2 gallon or so. I would advise not using the drain cock since it is prone to breaking at the the base of the radiator.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
'99 V70XC - Nautic Blue
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1999 V70XC - RIP - Wrecked Parts Car.
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1996 850 N/A
1989 740 GLT
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sealuva
Posts: 55
Joined: Sun Aug 14, 2011 11:44 pm
Year and Model: S70 1998
Location: Florida

Re: Location of Coolant Temperature Sensor

Postby sealuva » Mon Aug 15, 2011 6:13 pm

Thanks everyone.

mike walter
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Location: ohio

Re: Location of Coolant Temperature Sensor

Postby mike walter » Mon Aug 15, 2011 6:40 pm

The torx bolts can be a bit tight. Let the engine warm up, loosen slightly, not enough to allow coolant to escape.I install a clamp on the hose leading to the block from the over flow box and pull the box out of the mounts and lay it behind the engine. You will loose very little coolant this way.

seth1991
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Year and Model: V70, 1999
Location: Virginia

Re: Location of Coolant Temperature Sensor

Postby seth1991 » Wed Dec 07, 2011 12:28 am

Sorry to revive this thread, and I've bumped a thread of my own, but are the steps listed for the 98 V70 the same as for a 1999? My CEL is on with the code P0118, which I believe to be the ECT Sensor failure code. I just wanted to make sure before I buy the part [also replacing the thermostat]. Thanks!


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