Technical coolent problem!!

benjii · Apr 24, 2011

I noticed that my temp dial wasn't working but the fan was coming on, so thought change the temp sensor, changed it today and still not working and fan not coming on but getting hot :bang: the sensor was of a engine i have not a new one but looked newer than the one i took off

i am lost what to do now other than by a brand new one and fit that...

any ideas/ help?

Thanks all benjii

panda1408 · Apr 24, 2011

There are two different senders for the guage and fan. The guage sender is on the back of the block behind the oil filler, so that is the one you need to change.

What car is the spare engine out of? If its not a Panda then the sender probably has different resistance values so it will be no good.

benjii · Apr 24, 2011

panda1408 said:
There are two different senders for the guage and fan. The guage sender is on the back of the block behind the oil filler, so that is the one you need to change.

What car is the spare engine out of? If its not a Panda then the sender probably has different resistance values so it will be no good.

thanks for that so if i change that sender it should work hopfully

, what about the fan not working?

and yes the engine was off another panda 4x4, going in my next project ha.

any other ideas anyone

panda1408 · Apr 24, 2011

Im presuming you changed the fan switch then? Put the old one back in and then the fan should work.

benjii · Apr 24, 2011

panda1408 said:
Im presuming you changed the fan switch then? Put the old one back in and then the fan should work.

nope all i have changed is thermostat because the dial wasn't working on the dash but now dial is still not working and fan doesn't kick in :bang:

panda1408 · Apr 24, 2011

Oh, is it all bled and filled up properly, the coolant level might not be high enough to reach the switch therefore it wont work. Is the heater working?

rele · Apr 24, 2011

Check the wires,perhaps there is a break in the wire lines

benjii · Apr 24, 2011

panda1408 said:
Oh, is it all bled and filled up properly, the coolant level might not be high enough to reach the switch therefore it wont work. Is the heater working?

yes the heater is working fine nice and hot

and yes its filled up to the right level and the 4x4 is self bleading am sure... plus i have squeesed the pipes to try and get any air out if any

benjii · Apr 24, 2011

rele said:
Check the wires,perhaps there is a break in the wire lines

i checked the connections on the fan rele but dident back track them

panda1408 · Apr 24, 2011

Seems odd, have you tried shorting the connectors on the plug to see if the fan comes on? Actually where exactly is the fan switch on a 4x4??

rele · Apr 24, 2011

Have you try to connect fan directly to see if it is faultless.

P.S panda 1408 you are faster then me.

benjii · Apr 24, 2011

panda1408 said:
Seems odd, have you tried shorting the connectors on the plug to see if the fan comes on? Actually where exactly is the fan switch on a 4x4??

Nope i havent tried that, electrics is my downfall

and the fan switch is next to the fan really on the side of the radiator

benjii · Apr 24, 2011

rele said:
Have you try to connect fan directly to see if it is faultless.

P.S panda 1408 you are faster then me.

nope i havent done that, its just weird that the fan and dial on dash wont work

rele · Apr 24, 2011

Then try to change temperature relay-fan switch.
Before your job dash dial was good?

benjii · Apr 24, 2011

rele said:
Then try to change temperature relay-fan switch.
Before your job dash dial was good?

Nope the dash dial wasn't working then so my first thought was the temp switch underneath the dizzy cap but still not working

rele · Apr 24, 2011

Then maybe the dial is broken

Another idea- have you disassemble dash?
maybe some problem in there like broken lines on Printed Circuits

panda1408 · Apr 24, 2011

benjii said:
Nope the dash dial wasn't working then so my first thought was the temp switch underneath the dizzy cap but still not working

The thermostat has nothing to do with the guage on the dash, it just regulates the flow of water around the engine, so you probably didn't need to change that.

I would now change the guage sender which is the one on the block to the left off the air filter to get that working. You can test the wiring by earthing the terminal on the sender which should make the guage go to the maximum.

Once the guage is working you can test the fan is working by shorting the wiring on the fan switch and then replacing the switch if needed.

The two things use totally diferent circuits so they shouldn't affect each other at all.

benjii · Apr 24, 2011

panda1408 said:
The thermostat has nothing to do with the guage on the dash, it just regulates the flow of water around the engine, so you probably didn't need to change that.

I would now change the guage sender which is the one on the block to the left off the air filter to get that working. You can test the wiring by earthing the terminal on the sender which should make the guage go to the maximum.

Once the guage is working you can test the fan is working by shorting the wiring on the fan switch and then replacing the switch if needed.

The two things use totally diferent circuits so they shouldn't affect each other at all.

okay i will try that tomorrow

i had a quick look for the guage sender but could'nt see it

will have another look though.
Benjii

benjii · Apr 24, 2011

rele said:
Then maybe the dial is broken
Another idea- have you disassemble dash?
maybe some problem in there like broken lines on Printed Circuits

nope have touched the dash and whats broken lines on Printed Circuits??

rele · Apr 24, 2011

My english is not so good:bang:
for every connection,every bulb in dash there is electric lines on some(plastic i think) surface and it can be broken if not disassemble with care.

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