cooling fan question

[Jaredthefail]

On my 01 gtp the cooling system has been really odd. today i started the car for the first time in a few days to look at something else and both of the cooling fans were on.

The engine was cold and they turned on as soon as the car did

When are they supposed to come on? and could this be a faulty temp sensor??

[Fivefingerdeathpunch]

If the defrost was on, they do come on even when cold.

But if that isnt the case, the temp sensor could be going bad.

[Jaredthefail]

Well it came on all the time so I changed it out with a brand new one

The problem now is that it says the temperature is all the way up as soon as you start it......

Wtf is going on???

[Fivefingerdeathpunch]

Bad new temp sensor.

[Jaredthefail]

It was a bad temp sensor and I got the "better brand" in there now and it works, but those fans still come on. What else could cause this?

[Scottydoggs]

fans come on as soon as the car is fired up? thats the default when you unplug the sensor. both fans on all the time.

you likely got a bad wire from the temp sensor to the fans. that harness gets baked in the heat of the exhaust pipe there, check the wires in the short harness to the temp sensor for cracks or bare wire showing.

[Jaredthefail]

Could it be the connector itself? I've heard of this happening on other cars

[Scottydoggs]

anythings possible, but its send to the dash and pcm as per your scanner telling you the temp as well right?

so that leaves a break between the plug and fans.

[Jaredthefail]

Well its not really getting the full voltage on the gauge and the pcm. I know the engine is way hotter than what it's saying

It looks like where the wires go into the connector they have some bare wire and also look pretty cooked....

I don't have my scanner right now but i will in a few days

[Scottydoggs]

you need to replace that short harness off the temp sensor then. bare wires are dead wires.

the exhaust is right there baking the crap out of it. put a fork in it....

[Jaredthefail]

I would change it just to check but this is the only one I can find : http://www.amazon.com/Standard-Motor...CAHERFGWNBNK3K

and $16 feels like too much to just test around with when ill be going to the junk yard this Saturday.

[Scottydoggs]

your fine till you hit the junk yard for another one. the fans are just on full time. heater may suck but it wont over heat.

[Jaredthefail]

So I got 2 new ones at my junk yard and neither of them worked. They were off old cars and they looked about the same as mine but they both let the fans come on.

Does this mean the problem is farther down the cables?

[Jaredthefail]

They look like this



And they connect to here

[CrazyGuy03]

Lower left hand corner of the picture. Those wires. Open that connector. How's it look inside

[Scottydoggs]

if the harness is the same style, same plugs. id look on the other side of that plug on the lim there for more damaged wires.

[Scottydoggs]

your harness is un covered too on the fans, make sure those are all ok too.

[Jaredthefail]

Here's what the fan connector looks like

The wires aren't bare and the inside of the connector looks okay too




On the thing the wire also look fine

[Jaredthefail]

if the harness is the same style, same plugs. id look on the other side of that plug on the lim there for more damaged wires.

This is the other side

[Scottydoggs]

follow that wire, see if you can find any damage.

your on a mission now. when its not the simple things get a bit tougher.

your heat and or a/c are off right? cause the ac turns the fans on, defroster should also make the fans turn on.