Testing temp sending unit?

[madmader]

Is there a way to test that my temp sending unit is working normal. Like resistance test or anything?

 

[BISHILVR]

Yes, get your hands on a factory service manual, and it will give you the readings at different temps for the sensor.

 

[ddavisaf]

You can ground it out. It'll peg on Hot. If it doesn't, it's bad.

 

[madmader]

Yes i was hoping by posting here that someone might have the awnsers i need from ether factory service manual or alldata or something.

I'm sure there is someone out there with this info, they just have not come across this post yet

 

[steve]

The ECT Sensor should read about 2.5k ohms @ 68F and about 300 ohms @ 176F.

I can't imagine a DSM owner living without the FSM. Everyone should have the backup manual too http://www.manualcd.com/

Steve

 

[Defiant]

Many sensors are too cheap to waste time on testing. The temp sender is one of them.

 

[steve]

Swapping parts hoping to fix your problem is just stupid, regardless what it costs.

Steve

 

[madmader]

Well if you had a know good unit laying around why not.

But other then that why spend more money when u don't need to. I am not looking to put more money into this thing.

Time may be money but when you are doing this to leanr or have fun. Why not?

 

[steve]

If you have reason to suspect a problem, then either test it like you asked or swap with a known good part. if you have one. But the point is don't go buying parts rather than testing them first no matter how cheap they might be. You see way to much of that here instead of diagnosing problems.

There's little learning in bolting something up and far more in figuring out how and why something works.

Steve