Datatek
Well-Known Member
They should only run in an over heat situation, either refrigerent temperature or engine over temperature. Try disconnecting the sensor at the rear of the block towards the bulkhead under the inlet manifold and see if that stops them.
At this time of year, unless your engine is seriously overheating, they should never run and certainly not with the aircon off.
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By any chance would the fact that my blend motor is not working and hence the handbook symbol is on the HEVAC have any effect... Particularily if the HEVAC was set at differing side temps??
Shall disconnect the sensor,
Temp gauge is solid in the centre as it has always been, oil is still oily and coolant is pretty solid in level.
Hmm, new it was too good to be true
Shall disconnect the sensor,
Temp gauge is solid in the centre as it has always been, oil is still oily and coolant is pretty solid in level.
Hmm, new it was too good to be true
Datatek
Well-Known Member
Unless the tri state switch on the aircon is faulty, the aircon is unlikely to be calling the fans as there are 3 relays involved for full or half speed fan operation. Most likely is the engine temperature sensor which is a thermal switch.
I'll look up the relays in RAVE later if it will help, I can never remember the numbers.
Datatek
Well-Known Member
Block, under inlet manifold bulkhead end.
Don't have diagrams for this year but i doubt there should be one on a heater hose. Does the wiring to that look like part of the loom is is it cobbled. Photos would be helpful.
Datatek
Well-Known Member
There is a sensor on the aircon evaporator pipe as standard but it doesn't affect the fans
There is a sensor on the aircon evaporator pipe as standard but it doesn't affect the fans
He said heater hose Keith. There is one of course but not visible from under the bonnet. So it would be interesting to see which one he is on about.
Datatek
Well-Known Member
Yes, but I took it that he wouldn't know a heater hose from an evap hoseHe said heater hose Keith. There is one of course but not visible from under the bonnet. So it would be interesting to see which one he is on about.
But as you say there is also one on the heater hose but again it does not affect the aircon condensor fans.
Datatek
Well-Known Member
Viscous or electric? Electric should spin easily by hand, they are in front of the RAD's Viscous should be hard to turn when hot.
If the electric fans are running, it's possibly a loom problem where it passes over the chassis.
If the electric fans are coming on due to engine temperature, it is running seriously hot as the sensor setting is at least 10C above the hottest normal temperature.
Viscous fan is very easy to spin when its warm . Electric fans are fine, but they are cutting in so she is running very warm. Hence new viscous fan an thermostat going in before driving it again.
Should have realised there was a bigger problem when I replaced the split rad last year.
Should have realised there was a bigger problem when I replaced the split rad last year.
New viscius fan fitted, new thermostat in place an coolant changed.
Drove vehicle to plymouth an now have a temp needle that likes to wander round the dial an my rad hose on the right side of rad is swelling up rather alot.
Any idea s? I think the stat is working fine as the top of the rad is getting hot.
Woukd it be possible for the rad baffle to fail as I have cool spots around thd radiator??
Drove vehicle to plymouth an now have a temp needle that likes to wander round the dial an my rad hose on the right side of rad is swelling up rather alot.
Any idea s? I think the stat is working fine as the top of the rad is getting hot.
Woukd it be possible for the rad baffle to fail as I have cool spots around thd radiator??
