Very Cold 940 Estate

Colin Goode · Jan 27th, 2006, 18:08

Hi there

The heater on my UK 940 1995 manual estate is not working properly. I have checked the various hoses etc. and noticed that the two pipes that go through the bulkhead are only slightly warm, although the radiator is hot. I have been looking at the various threads regarding the non working of the heater in the 940 and I admit I am a bit confused. Some seem to indicate that the heater valve in on the LHS of the car behind the glove box and some behind the clutch cable which is on the RHS of the car. The fault might appear to be the heater valve or its control cable. However when the heater does at last work - anything over 1 hour - the control does work properly. I have also noticed since this problem started that that the engine will show signs of overheating when in traffic, although when running normally the gauge returns to normal.

Can someone please clarify exactly where the valve is and the best way of getting at it, checking it and if necessary replacing it. Or any other possible solutions.

Thanks

Colin

Andy_Gibson · Jan 27th, 2006, 18:20

on cars without aircon it's loacted near the clutch cable, remove the large plastic cover under the steering column and you'll see it quite easily, I think it's cable operated so theck the cable is still connected to the valve and moves when you turn the heater temperature knob/slider.

If it's got aircon like i've got then it's in the engine bay between the firewall and the engine block and is vacume operated fo again make sure the vacume pipe is connected

RollingThunder · Jan 28th, 2006, 10:24

Quote:

Originally Posted by Colin Goode

I have also noticed since this problem started that that the engine will show signs of overheating when in traffic, although when running normally the gauge returns to normal.

Hi Colin,

Could be the thermostat that is stuck in the closed position? Just a thought.

Cheers,

Colin Goode · Jan 29th, 2006, 10:19

Hi both

Thanks for the suggestions. I will now go and try and find the cable. At least I now know where to look!! I will probably change the thermostat just as a precaution. Wish me luck...........

Thanks

Colin

Colin Goode · Jan 29th, 2006, 15:24

What excellent advice.......... I removed the panel and there it was..

And YES the valve has been weeping for some time, now its just too far gone to contain the coolant for much longer. Luckily the carpets are OK.

At the risk of asking a commercial question, what is the best place to obtain a replacement. I'm sure Volvo will supply one, but at a price.

Any tips for replacing it would be gratefully received.

Thanks

Colin

Citizen.Agfa · Jan 29th, 2006, 15:50

Wotcher. Best place for a new valve, if you are going to keep the car, is Volvo, however they will charge you the approximate national debt of the whole of Scandinavia for one; should you decide on non-o/e then either Eurocarparts or German, Swedish & French is the place to go. Even from either of these fine establishments it will cost in the region of £50-£55 delivered. As I've mentioned one or two times before, at least it wasn't the heater matrix, these come in at an eye watering £450 or thereabouts-CRUMBS!
All the best, Nick.

Jan 27th, 2006, 18:08	#1
Colin Goode New Member Last Online: Jul 22nd, 2009 09:53 Join Date: Jan 2006 Location: Exeter	Very Cold 940 Estate Hi there The heater on my UK 940 1995 manual estate is not working properly. I have checked the various hoses etc. and noticed that the two pipes that go through the bulkhead are only slightly warm, although the radiator is hot. I have been looking at the various threads regarding the non working of the heater in the 940 and I admit I am a bit confused. Some seem to indicate that the heater valve in on the LHS of the car behind the glove box and some behind the clutch cable which is on the RHS of the car. The fault might appear to be the heater valve or its control cable. However when the heater does at last work - anything over 1 hour - the control does work properly. I have also noticed since this problem started that that the engine will show signs of overheating when in traffic, although when running normally the gauge returns to normal. Can someone please clarify exactly where the valve is and the best way of getting at it, checking it and if necessary replacing it. Or any other possible solutions. Thanks Colin

Jan 27th, 2006, 18:20	#2
Andy_Gibson Turbo-Charged Last Online: Apr 25th, 2024 23:30 Join Date: Dec 2004 Location: redditch	on cars without aircon it's loacted near the clutch cable, remove the large plastic cover under the steering column and you'll see it quite easily, I think it's cable operated so theck the cable is still connected to the valve and moves when you turn the heater temperature knob/slider. If it's got aircon like i've got then it's in the engine bay between the firewall and the engine block and is vacume operated fo again make sure the vacume pipe is connected __________________ 1997 945 2.3LPT SE Auto 2001 V70 2.4 170 SE

Jan 29th, 2006, 10:19	#4
Colin Goode New Member Last Online: Jul 22nd, 2009 09:53 Join Date: Jan 2006 Location: Exeter	Thanks Hi both Thanks for the suggestions. I will now go and try and find the cable. At least I now know where to look!! I will probably change the thermostat just as a precaution. Wish me luck........... Thanks Colin

Jan 29th, 2006, 15:24	#5
Colin Goode New Member Last Online: Jul 22nd, 2009 09:53 Join Date: Jan 2006 Location: Exeter	Found it What excellent advice.......... I removed the panel and there it was.. And YES the valve has been weeping for some time, now its just too far gone to contain the coolant for much longer. Luckily the carpets are OK. At the risk of asking a commercial question, what is the best place to obtain a replacement. I'm sure Volvo will supply one, but at a price. Any tips for replacing it would be gratefully received. Thanks Colin

Jan 29th, 2006, 15:50	#6
Citizen.Agfa VOC Member Last Online: Mar 24th, 2024 16:34 Join Date: Dec 2002 Location: Nowhere.	Wotcher. Best place for a new valve, if you are going to keep the car, is Volvo, however they will charge you the approximate national debt of the whole of Scandinavia for one; should you decide on non-o/e then either Eurocarparts or German, Swedish & French is the place to go. Even from either of these fine establishments it will cost in the region of £50-£55 delivered. As I've mentioned one or two times before, at least it wasn't the heater matrix, these come in at an eye watering £450 or thereabouts-CRUMBS! All the best, Nick. __________________

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