Hot air blower is mild

[fubar sounds]

Hot blower is blowing mild unless I m driving it hard in which case it chucks out plenty of heat, i dont recall this being the case , i m pretty sure that it wasnt like this before yesterday , and this happens after the engine is fully wamed up,I m always running a sub amd playing music relatively loudly , is this just a matter of not enough of amps to go round whilst stop starting in traffic or does this mean the something is on its way out ? Regards

[Mad Mark]

Do you mean the strength/force of the blower or the heat of the blower? If it's the heat it has nothing to do with Amps.
Have you checked your water level? This sounds more like you have low water or air in the system.

[Vee8ight]

Thermostat stuck open?

[fubar sounds]

The force of air is regular just the heat drops unless I v got my foot down , but then when I hit traffic and slow , the temp drops , where is the thermostat , how can I check it ( the water level is normal ),

[Mad Mark]

You may have an air lock. Check the water in the rad by undoing the bolt on the top drivers side of the rad and also the two butterfly thingies on the water rails below the air boxes.

It sounds like you have air in the heater matrix which when the pump is moving slow the matrix cools with the blower blowing through it and when you rev the engine the flow of hot water keeps the matrix hot.

[fubar sounds]

I topped up the coolant level and ran the engine for 5 mins gave it a couple of revs and it seems to have sorted it out , if only everything was as easy that ( or am I tempting fate with that remark ) thanks for the input

[fubar sounds]

instruction from Graham@Bespoke,

[Vee8ight]

Is it still working ok? Mine goes colder the faster I go, was wondering if the thermostat was stuck open?

[Mad Mark]

In this weather the cabin does get very cold as you go faster as there are a lot of places for air to be forced in. and the running temp will be lower too.
If your stat is stuck open the car will take a lot longer to warm up.