Strange interior heating problem SORTED

[BigDaddy]

That looks pretty decent idea and not difficult either, could I just ask what sort of pump you used? I think I’ll give it a try if that worked for you. 70% heat would be a lot better than nothing.

 

[Street]

That looks pretty decent idea and not difficult either, could I just ask what sort of pump you used? I think I’ll give it a try if that worked for you. 70% heat would be a lot better than nothing.

It was this one for £21. Discontinued but it was a few years ago and must have been superseded by something better by now.
https://amzn.eu/d/a8uiQvN

 

[BigDaddy]

Thanks! Yeah, looking on Amazon there are plenty of similar pumps. A 500 watt water heater isn’t much money either. Did you just leave it running for a few hours then? I could always set it up on a Sunday morn and leave it for the day.
Looks like a mad scientists experiment in a way, the kids will love it.

 

[Street]

Exactly! Get all scientific with a thermometer and keep measuring the output

I left it running overnight for a few consecutive days. Each morning back flushing with the hose to clear out anything that became dislodged.

 

[BigDaddy]

I just flushed the matrix again, swapped hoses a few times and did it both through the inlet and outlet. The inline hose valve I bought is quite good as it allows you to repeatedly turn it off and on which seems to dislodge more dirt. Anyway I got a load more crud out of there today. I will give it another flush in a few days time then do the pump thing I think. It is nuts just how much crap there is in there but then I guess a radweld bottle holds quite a lot of gunk, plus the car is 20 yrs old and I have no idea what the previous owners put into it.

I can’t help think the matrix is almost like a filter for any crap in the cooling system. I only drove it for 10-15 minutes after the last flush and it accumulated a load more stuff in there which must’ve swished round and then got trapped in the matrix. I hope that a couple more flushes will get most of the crud out of the system.

Passenger side is no longer blowing cold at least. It’s not hot but it’s not cold, so it has improved. I think anyway, the weather is a bit better so it’s hard to say really, but I think it’s improved. Drivers side was always pretty hot but now that as far as I can tell is a bit hotter as well so the flushing thing has been worth it so far I think, I just need to get more intensive.