Zafira fan

[jurassic sparkk]

2010 Zafira. Fan used to run at 113 degrees.. strange right? Now it doesn't even run. Temperature at 127c and fan not kicking in. All relays test okay...

At 100 degrees without the fan running should I be worried? I mostly do short trips... doesn't state anything on the manual...

 

[carmanmemoranda]

Yes, you dont want the engine at 127 for long.

 

[jurassic sparkk]

Yes, you dont want the engine at 127 for long.

100c an issue? Or is it normal for these vauxhalls?

 

[carmanmemoranda]

100c an issue? Or is it normal for these vauxhalls?

90 is the accepted ideal, but up to 100 as long as not sustained is ok

 

[RandomGrinch]

I am reminded of my old Metro...
Driving in slow summer traffic meant having the heater and blower on maximum, windows down and getting very sweaty
I'm glad cars are a lot more reliable these days!

 

[Astra99]

Check the connections at the fan! I had a 1986 Astra 1.3 which nearly cooked becuase the fan connections were corroded!

 

[Mottie]

Has it got A/C? Does the fan come on if you switch it on?

 

[jurassic sparkk]

Has it got A/C? Does the fan come on if you switch it on?

It doesn't come on with the ac.

 

[Mottie]

Possibly fan knackered then.

 

[TimboTwo]

Check the thermal switch.
If you short the switch out, does the fan run?

And, of course, the obvious. Fuse.

 

[jurassic sparkk]

Possibly fan knackered then.

Supplied direct 12v to fan and it spun perfectly... all relays and fuses are good... even jumped the fan relay to rule out a ECU issue

 

[TimboTwo]

Switch. Link it out to prove.

 

[jurassic sparkk]

Switch. Link it out to prove.

The CTS sensor?? As I am aware the fan is controlled by the ECU for this vehicle.

 

[TimboTwo]

Sorry, wasn't aware of that.

The CTS sensor?? As I am aware the fan is controlled by the ECU for this vehicle.