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Northerner
11-01-2009, 21:04
Here's a weird one...

When driving around normally the engine temp will increase until the fan kicks in, engine temp reduces, fan switches off, engine temp increases, fan kicks in and so on.....until I park up.

This happens irrespective of the temp or speed travelling at.

I've fitted a new rad, thermostat, rad fan switch and changed the coolant.

Any ideas :confused::confused::confused:
TNT!hammond
11-01-2009, 21:47
couple of questions , is it all bled up properly with the heater control on the hot position ? These new stat and fan are they the 'uprated low temp ' ones . When i had the low temp stuff the fan was on all the time when driving and as you say it didnt matter wether i was traveling fast or not . Turned out the fan switch was a 64 deg one when i tested it . it was coming on before the stat had even opened . The reason the gauge went up and down was only down to the stat onpening and closing. Hope thats of some help
Northerner
11-01-2009, 22:01
The heater matrix has been bypassed, the stat is 75 deg and the rad fan switch is standard.
TNT!hammond
11-01-2009, 22:11
no issues before the renewal?, have you tested the stat and do you have the rad surround still in? That helps no end
Northerner
11-01-2009, 22:15
Its always done it which doesn't help.

I've not tested the stat as it was brand new, but when the old stat was insitu the problem still existed.
TNT!hammond
11-01-2009, 22:27
do you have the rad surround then? you dont say
Nick k
11-01-2009, 22:32
Is the wind deflector fitted at the bottom of the radiator??
Nick k
11-01-2009, 22:33
Is the wind deflector fitted at the bottom of the radiator??
Too slow!!
TNT!hammond
11-01-2009, 22:41
he he nick :laugh:
Northerner
11-01-2009, 22:43
I'll have a look for the wind deflector & rad surround in the morning
TNT!hammond
11-01-2009, 22:54
i had to make them out of alloy for mine in the end due to running a altered setup they help no end mate :)
Northerner
15-06-2009, 21:09
As the car has been awaken from its under the tree slumber, its time I got this engine temp sorted.

Can someone post a pic of the radiator shroud/air diverter?
UNICRONICUS
15-06-2009, 22:49
I thought the engine is meant to heat up and cool down constantly, isn't that how cooling systems, stats, fans and switches work?
Northerner
15-06-2009, 23:38
I thought the engine is meant to heat up and cool down constantly, isn't that how cooling systems, stats, fans and switches work?

Yes, but despite the airflow over the radiator at any speed (constant or accelerating), the engine temp will reach the level where the fan kicks in. No other R5 GTT i've had does this.