Jump to content
NorPug

Temperatur sensors wiring

Recommended Posts

Hi,

I have installed a custom radiator 10 years ago. No I can't remeber all thw wiring for the sensors. 

On top of the radiator there is a level float switch. I have checked it and it seems to be giving correct signals. I connected it to the "most likely" cables. Shouldnt there be a signal in the dash for low coolant level? (the bulb may be broken)

I also can't get any reading on temperatur gauge. Is this sensor connected to the rad as well? I always thought that this came from on of the "one pin" sensor on the thermostat housing on the engine.

Last. On my original rad there was a sensor on the lower left side (same side as float switch). This looks like a sensor but it seems to be a high-temp switch with make or brake contact. (active at 100deg or so). I have also tried to connect this with the "most likely" cable with no luck. I guess there should be a high temp. warning light as well

Share this post


Link to post
Share on other sites

Gauge temp sensor is on the tstat housing as you said, the rad temp switch on the bottom of rad is to trigger fans...  Low temp actuates the carbon brush on the magnetic clutch fan, high setting should activate AC fans on front.

I'd check grounds in engine bay as a first step.

Rabin

Share this post


Link to post
Share on other sites

So the level float switch on top is only for warning light?

Is the high temp warning light also placed on the tstat housing?

Share this post


Link to post
Share on other sites

Correct. 

Float is low level warning, temp guage and warning light sensors on t-stat housing.

Rabin

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×