Temprature gauge

[brentleedragon]

So anyhow my trucks temp gauge goes up whenever I am parked at a stop sign or idling or whatever. It goes up slowly but out of the "normal" area range, as soon as I start going it decreases and stays in the middle where it normally rides.

Is it just an old 30 year old gauge shouldnt care much? Or thermostat going out?

 

[TexasNomad]

Sounds like some thing to do with the fan or the fan clutch...

 

[brentleedragon]

How would I be able to test that?

 

[Ridgerunner]

How would I be able to test that?

If your clutch fan is working properly raise your hood and you should feel it pulling air at the rear of the hood

 

[brentleedragon]

Okay, so just put my hand back there and feel if it is pulling?

 

[m78]

If your clutch fan is working properly raise your hood and you should feel it pulling air at the rear of the hood

I Don<t understand that

 

[Ridgerunner]

Okay, so just put my hand back there and feel if it is pulling?

Yeah at the rear of the hood. Not in THE FAN....

 

[m78]

I've also had about 8 rum-n-cokes

 

[Ridgerunner]

I Don<t understand that

You're from VA.

 

[Mil1ion]

Watch and see of the Fuel gauge rises as well.

This system is quirky sometimes so it could be nothing to worry about.

I have had both gauges climb and almost pin.. give the dash a hard slam and they drop.


You never mentioned the ambient temp of the air ....so Next time just rev the engine up and watch for the needle to drop

 

[UNRULEE]

Check it (the rad) with an infared temp gauge to be sure. If you don't have one and you're questioning the gauge, I'd stick a new temp sender and thermostat in it. Less than $20.

 

[UNRULEE]

Wow we all posted at the same time...........................weird...........

 

[m78]

I 'm just curious

 

[Ridgerunner]

I 'm just curious

Cause you're on your 9th rum and coke?

 

[m78]

10th never seen the piese syn b4 hah!

 

[brentleedragon]

Okay I dont feel it pulling on the back of the hood, it seems to be blowing air out....

Next I let the truck idle and the temp gauge get up, and I throttled the truck without it moving and it seemed to drop a little bit but not back down. But I wont be able to tell that until I am actually out driving.

 

[F 150Cobra]

i cant believe no one said

when truck is parked engine cold ENGIN OFF ... try to turn the fan it should turn with some resistance if it turns freely then its shot

 

[dakonthemountain]

i cant believe no one said

when truck is parked engine cold ENGIN OFF ... try to turn the fan it should turn with some resistance if it turns freely then its shot

Have you checked your radiator cap pressure to ensure you have the proper pressure and circulation of your coolant? maybe a clog somewhere in the cooling system and when moving you have more air to cool...... or when you rev it the fan moves faster.

Dak

 

[brentleedragon]

Have you checked your radiator cap pressure to ensure you have the proper pressure and circulation of your coolant? maybe a clog somewhere in the cooling system and when moving you have more air to cool...... or when you rev it the fan moves faster.

Dak

The fan turns sorta, it takes pressure lol no free moving.

Do you mean the amount of pressure I am supposed to have? I think I have a 13lb cap which is what I believe it is supposed to be up here?

How would I find a clog?

 

[dakonthemountain]

Unless you have your own pressure gage you would have to take it to someone. Sorry, I didn't mean the actual cap, but the pressure in the system itself. One can take the cap off and attach a gauge to the cap opening to test. If there was a clog you would have to flush the system and re-check.
Good luck!
Dak