X308 No hot air from heater
Discussion
) it would be cold within a couple of hundred yards.TTwiggy said:
My X308 has been doing this too. But I put it down to the cold weather - round town it was fine, but at speed the engine temp would drop and so would the heater temp
That sounds like a thermostat to me. I don't know what that involves on the V8 but on the AJ16 the part was quite cheap and it took about 10 mins with a spanner. Can't remember whether the anti-freeze wasn't the most expensive part of the job and getting it properly re-filled the trickery job. I think it was a question of filling then turning it over a bit and then re-filling.
I'm sure one of the guys who knows what they are doing will come along with the details soon.
Sounds silly, but do your front fag lamps work and also the light in the fog lamp switches in the dash ?
I has a similar problem that was tracked to a dodgy alarm sounder.
http://www.pistonheads.co.uk/gassing/topic.asp?h=0...
I has a similar problem that was tracked to a dodgy alarm sounder.
http://www.pistonheads.co.uk/gassing/topic.asp?h=0...
Bacon_VII said:
Sounds silly, but do your front fag lamps work and also the light in the fog lamp switches in the dash ?
I has a similar problem that was tracked to a dodgy alarm sounder.
http://www.pistonheads.co.uk/gassing/topic.asp?h=0...
WOW Yes it's the fog lamp switch which is not working but the fog lights themselves are plus the Jag in question is a XJR 100 as well!I has a similar problem that was tracked to a dodgy alarm sounder.
http://www.pistonheads.co.uk/gassing/topic.asp?h=0...
Will check all this out over next couple of days and report back.
Sounds like your there now anyway, but......
XK/XJ V8 heater diag.
If the engine is not keeping warm in the cold weather, and subsiquently the heaters getting cold, its a thermostat.
If the engine is getting too hot and the heater doesnt get hot, its the mechanical water pump. (switch off get recovered or you'll cook it)
When the engine is getting the correct temperature and the heater doesnt work, check the power and ground at the heater pump/solonoid.
IF you have a good power and ground, then the pump/solonoid is faulty.
If you have a good earth and no power, wiring fault trace back to feed (most likely siren fuse related)
If you have power and no ground, bad earth.
XK/XJ V8 heater diag.
If the engine is not keeping warm in the cold weather, and subsiquently the heaters getting cold, its a thermostat.
If the engine is getting too hot and the heater doesnt get hot, its the mechanical water pump. (switch off get recovered or you'll cook it)
When the engine is getting the correct temperature and the heater doesnt work, check the power and ground at the heater pump/solonoid.
IF you have a good power and ground, then the pump/solonoid is faulty.
If you have a good earth and no power, wiring fault trace back to feed (most likely siren fuse related)
If you have power and no ground, bad earth.
Fantastic my X308 had this same very same fault. Tracked it down to number 3 fuse and managed to rig up a new power feed for the pump. At this time of year it was a priority.
Every time I put in a 10A fuse it popped.
Any pointers as to how and where the siren might be found? I quite liked the fact it was not beeping when it was locked and or un-locked.
Every time I put in a 10A fuse it popped.
Any pointers as to how and where the siren might be found? I quite liked the fact it was not beeping when it was locked and or un-locked.
MDT said:
Fantastic my X308 had this same very same fault. Tracked it down to number 3 fuse and managed to rig up a new power feed for the pump. At this time of year it was a priority.
Every time I put in a 10A fuse it popped.
Any pointers as to how and where the siren might be found? I quite liked the fact it was not beeping when it was locked and or un-locked.
Had a look at the car tonight and found a 10A fuse blown, so as MDT above where is the siren so it can be disconnected and the heater working again as it's got very cold again.Every time I put in a 10A fuse it popped.
Any pointers as to how and where the siren might be found? I quite liked the fact it was not beeping when it was locked and or un-locked.
As an interim solution I took a feed from the number 3 fuse and cut the positive wire to the pump and wired it in directly (with a 10A fuse inline) to get round the issue of cold feet or having to drive the SAAB.
Job done and all sorted now. Ok no fog lights, but having warm feet in Scotland this time of year out way fog lights.
Job done and all sorted now. Ok no fog lights, but having warm feet in Scotland this time of year out way fog lights.
MDT said:
As an interim solution I took a feed from the number 3 fuse and cut the positive wire to the pump and wired it in directly (with a 10A fuse inline) to get round the issue of cold feet or having to drive the SAAB.
Job done and all sorted now. Ok no fog lights, but having warm feet in Scotland this time of year out way fog lights.
I would have thought that at this time of year no heater rapidly meant no see out of windscreenJob done and all sorted now. Ok no fog lights, but having warm feet in Scotland this time of year out way fog lights.
The siren is located (from memory) near the passenger side of the radiator.
I managed to get at it (the connector) by just sliding myself under the car whilst plipping the key fob and listening for where the noice came from. If you look (from under the car) towards the bottom of the passenger side of the rad you'll see it. It has only one connector, which with fat fingers like me you can disconnect and the fuse stops blowing and fogs/heater start to work.
I plan in either replacing or fixing the siren, but this looks like a wheelarch lining out job to get at it properly, and frankly and can't be bothered in this weather.
I managed to get at it (the connector) by just sliding myself under the car whilst plipping the key fob and listening for where the noice came from. If you look (from under the car) towards the bottom of the passenger side of the rad you'll see it. It has only one connector, which with fat fingers like me you can disconnect and the fuse stops blowing and fogs/heater start to work.
I plan in either replacing or fixing the siren, but this looks like a wheelarch lining out job to get at it properly, and frankly and can't be bothered in this weather.
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