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So what is the purpose of the coolant fan operating when the A/C is on even if the thermostat is closed?
Flushing is good practice, but you didn’t suggest that there were any running or over heating problems before changing the coolant. Had you not bothered the car would have probably (‘probably’ because who knows) carried on for years without a problem.
When eventually it did over heat (if it was because of the rust) the rust would have built up in the radiator channels, long before the engine channels. (because they are smaller and get clogged easier).
The fact that you have simply changed the coolant is in my opinion sufficient preventative maintance. You can flush the coolant as well but either way I still think you have nothing to worry about.
If its not broken don’t fix it, as they say.
Kdr
Flushing is good practice, but you didn’t suggest that there were any running or over heating problems before changing the coolant. Had you not bothered the car would have probably (‘probably’ because who knows) carried on for years without a problem.
When eventually it did over heat (if it was because of the rust) the rust would have built up in the radiator channels, long before the engine channels. (because they are smaller and get clogged easier).
The fact that you have simply changed the coolant is in my opinion sufficient preventative maintance. You can flush the coolant as well but either way I still think you have nothing to worry about.
If its not broken don’t fix it, as they say.
Kdr
Coolant as well as having ‘anti-freeze’ properties, also has a rust inhibitor. If its not changed regularly it loses it’s rust inhibiting properties and the internal passages do start to corrode….. What you have here is normal for systems not regularly serviced or ran on tap water.
Don’t worry about it.
Coolant as well as having ‘anti-freeze’ properties, also has a rust inhibitor. If its not changed regularly it loses it’s rust inhibiting properties and the internal passages do start to corrode….. What you have here is normal for systems not regularly serviced or ran on tap water.
Don’t worry about it.
As you don’t seem to want to float test it and you have no codes I’d also go with a vacme leak search.
As you don’t seem to want to float test it and you have no codes I’d also go with a vacme leak search.
You need a wiring diagram.
At least you know it’s fused,
It odd that the AC and the coolant are connected, like this. I generally work on military vehicles in the UK so differences exist between my knowledge and your car. From what I know about Euro cars the two systems are completely separate electronically too.
It will be interesting to see other opinions on this.
I think I’d start to look at putting a test light on the fan connections first and see if any power is getting to it all of the time. You’ll be able to see the light from the driving seat while reving the engine and will be easier than using a DMM.
I think somebody else should jump in here though that has experienced this before.
Kdr
You need a wiring diagram.
At least you know it’s fused,
It odd that the AC and the coolant are connected, like this. I generally work on military vehicles in the UK so differences exist between my knowledge and your car. From what I know about Euro cars the two systems are completely separate electronically too.
It will be interesting to see other opinions on this.
I think I’d start to look at putting a test light on the fan connections first and see if any power is getting to it all of the time. You’ll be able to see the light from the driving seat while reving the engine and will be easier than using a DMM.
I think somebody else should jump in here though that has experienced this before.
Kdr
I had a Clio once,
No end of problems, my advice would be to float test it.
Float testing
1 drive car to lake or sea
2 push it in
3 if it sinks buy a decent car
4 if it floats wait until it sinksOr you could plug it into an OBD2 scanner, the socket should be under the ashtray that will just pull out.
When was it last serviced?
Kdr
I had a Clio once,
No end of problems, my advice would be to float test it.
Float testing
1 drive car to lake or sea
2 push it in
3 if it sinks buy a decent car
4 if it floats wait until it sinksOr you could plug it into an OBD2 scanner, the socket should be under the ashtray that will just pull out.
When was it last serviced?
Kdr
Starting simply and without a wiring diagram, I would take the fan fuse out and see if the fan still works when you rev the engine. If it does then you know for sure that it’s been bypassed from another system.
Kbr
Starting simply and without a wiring diagram, I would take the fan fuse out and see if the fan still works when you rev the engine. If it does then you know for sure that it’s been bypassed from another system.
Kbr