Discussion
At what temp should the radiator fan come on in an 05 Monaro VXR?
When up to temp the gauge usually sits at the notch just below the halfway point.
After reversing into the garage yesterday, just before I shut the engine off I noticed that the gauge had risen to the mark just above the halfway point but the fan hadn't kicked in yet?
When up to temp the gauge usually sits at the notch just below the halfway point.
After reversing into the garage yesterday, just before I shut the engine off I noticed that the gauge had risen to the mark just above the halfway point but the fan hadn't kicked in yet?
throwyourbike said:
At what temp should the radiator fan come on in an 05 Monaro VXR?
When up to temp the gauge usually sits at the notch just below the halfway point.
After reversing into the garage yesterday, just before I shut the engine off I noticed that the gauge had risen to the mark just above the halfway point but the fan hadn't kicked in yet?
For some reason, GM saw fit to make the temp gauge have quite an interesting 'scale'.When up to temp the gauge usually sits at the notch just below the halfway point.
After reversing into the garage yesterday, just before I shut the engine off I noticed that the gauge had risen to the mark just above the halfway point but the fan hadn't kicked in yet?
That 3/8 marker actually covers the entire operating range of the engine, it stays there between ~80 and ~110. I believe the fans come on ~110, gust it back down to ~100 then go off again. The only time I've seen mine above that marker is after a hot drive stopping for petrol, sometimes when getting back in and starting it up it's risen a bit.
I've now 'remapped' the scale for my gauge so, shock horror, it actually represents the temperature of the engine as opposed to just whether it's 'Cold', 'OK' or 'Hot' which the stock method effectively does...
So you are saying it shouldn't ever go above the 3/8 marker?
If I leave mine idling for more than a couple of minutes after it reaches operating temp the needle will begin to climb. As I say, when I was messing around trying to reverse it into the garage the needle was almost at 6/8 and no sign of the fan.
If I leave mine idling for more than a couple of minutes after it reaches operating temp the needle will begin to climb. As I say, when I was messing around trying to reverse it into the garage the needle was almost at 6/8 and no sign of the fan.
throwyourbike said:
So you are saying it shouldn't ever go above the 3/8 marker?
If I leave mine idling for more than a couple of minutes after it reaches operating temp the needle will begin to climb. As I say, when I was messing around trying to reverse it into the garage the needle was almost at 6/8 and no sign of the fan.
There are three possibilities then, a previous owner has changed the calibration (which to the best of my knowledge nobody in the UK knows how to do and the yanks only figured out last year) or it is getting very hot indeed, or I'm just spouting nonsense of course!If I leave mine idling for more than a couple of minutes after it reaches operating temp the needle will begin to climb. As I say, when I was messing around trying to reverse it into the garage the needle was almost at 6/8 and no sign of the fan.
I've only very occasionally heard the fans come on, but I've now changed their threshold and things so I'm no longer in a position to verify their operation. Based on previous logs when queueing up to drag race etc (so hot car, hot day, queueing) the 110 > 100 > 110 > 100 cycle was true for my car (LS2).
Don't suppose you have an OBDII reader available? Might be worth it to see what temps your engine is getting to.
Quick question, do you still have the plastic cover on the engine? And the tramp jacket on the underside of the bonnet? Wonder if that's trapping more heat in than mine does and perhaps accounts for the difference in fan behaviour?
The car is totally standard, no mods. On that basis alone I don't think the fan settings would have been messed around with.
It spends 99% of its time on the motorway with plenty of airflow so I've never had to think about the cooling fan before.
I don't have access to a reader unfortunately, would the "hidden" menu be of any use?
Yes both the engine cover and fabric are still in place.
It spends 99% of its time on the motorway with plenty of airflow so I've never had to think about the cooling fan before.
I don't have access to a reader unfortunately, would the "hidden" menu be of any use?
Yes both the engine cover and fabric are still in place.
throwyourbike said:
I don't have access to a reader unfortunately, would the "hidden" menu be of any use?
Yes both the engine cover and fabric are still in place.
I don't think so, I don't think ECT is on that menu.Yes both the engine cover and fabric are still in place.
If you have an Android phone you can get a free 'app' to do it alongside a bluetooth OBDII plug in jobby for ~£15.
If you wanted to try changing the temp gauge calibration, that's another free program and you'd need to make up a cable (again, ~£15 and a dab of solder)
throwyourbike said:
Thanks for all your help Sturdy.
Unfortunately I have an iPhone so I won't be able to do that either
Not to worry though, I'll take it to the mechanic and let him have a look when I get a chance.
I just assumed that the fan would kick in somewhere between the 6/8 mark and the red.
You can get a wi-fi OBDII dongle and an app called Rev if you want Iphone wise, but naturally it all costs a bit more!Unfortunately I have an iPhone so I won't be able to do that either
Not to worry though, I'll take it to the mechanic and let him have a look when I get a chance.
I just assumed that the fan would kick in somewhere between the 6/8 mark and the red.
I'm sure a mechanic will be able to help though
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