Heater cold passenger side

Dallas · 14th December 2018, 15:37

Heater seems to be blowing cold on passenger-side, I suppose this is a blocked matrix. What is the best way to tackle this lads?

roverbarmy · 14th December 2018, 15:58

In the first instance a radflush or similar, reverse flush afterwards via the heater pipes to and from the block. If that fails, it's a replacement heater matrix I'm afraid!

Number 6 · 14th December 2018, 17:24

Quote:

Originally Posted by roverbarmy

In the first instance a radflush or similar, reverse flush afterwards via the heater pipes to and from the block. If that fails, it's a replacement heater matrix I'm afraid!

Why a replacement Matrix???? please explain..

roverbarmy · 14th December 2018, 18:12

Quote:

Originally Posted by Number 6

Why a replacement Matrix???? please explain..

If you can't flush them out, they are usually so badly blocked that they have to be replaced.

Dallas · 14th December 2018, 18:50

How easy/hard is it to changed the heater matrix?

It is easier to get to the two hoses at the bulkhead, or do I go from under the dash?

Thanks fellas.

trikey · 14th December 2018, 19:26

Easiest from under the car Wes, remove the hose from the rear bank, and the other from near the battery tray side.

Getting the hoses off in the bulkhead is a pig, plus you will then fill the plenums with all the crud when you flush.

I did a matrix in 20 mins the other week, I was very very lucky, its normally an hour, getting the clips on is a tricky job.

Eddy600 · 14th December 2018, 19:29

On the 1.8's it's easy to get to the hoses at the back of the engine to disconnect and flush in situ, also a simple process to remove the heater matrix from the drivers footwell can be an absolute pain to refit, ive done it a few times and only once had to cut the flange and use some tubing.

Dallas · 14th December 2018, 19:32

Quote:

Originally Posted by trikey

Easiest from under the car Wes, remove the hose from the rear bank, and the other from near the battery tray side.

Getting the hoses off in the bulkhead is a pig, plus you will then fill the plenums with all the crud when you flush.

I did a matrix in 20 mins the other week, I was very very lucky, its normally an hour, getting the clips on is a tricky job.

Thanks Andy, that sounds a pig of a job... It can stay blocked, I've had enough of cars.

trikey · 14th December 2018, 19:37

Quote:

Originally Posted by Dallas

Thanks Andy, that sounds a pig of a job... It can stay blocked, I've had enough of cars.

I feel your pain Wes, try some radiator flush, it may improve things.

gazcaz · 15th December 2018, 11:14

Quote:

Originally Posted by Dallas

Thanks Andy, that sounds a pig of a job... It can stay blocked, I've had enough of cars.

Its only passenger side

you dont sit there lol...

14th December 2018, 15:37	#1
Dallas This is my second home 1979 Capri 1.6L, 1982 Capri 1.6L, 2016 Dacia Stepway Join Date: Jun 2009 Location: Dorset Posts: 8,595 Thanks: 3,496 Thanked 3,397 Times in 2,218 Posts	Heater cold passenger side Heater seems to be blowing cold on passenger-side, I suppose this is a blocked matrix. What is the best way to tackle this lads?

14th December 2018, 15:58	#2
roverbarmy This is my second home Roverless + 1.7D Sportage Join Date: Aug 2014 Location: East Norfolk Posts: 7,050 Thanks: 729 Thanked 2,021 Times in 1,449 Posts	In the first instance a radflush or similar, reverse flush afterwards via the heater pipes to and from the block. If that fails, it's a replacement heater matrix I'm afraid! __________________ Oil in my veins!

14th December 2018, 19:26	#6
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,765 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Easiest from under the car Wes, remove the hose from the rear bank, and the other from near the battery tray side. Getting the hoses off in the bulkhead is a pig, plus you will then fill the plenums with all the crud when you flush. I did a matrix in 20 mins the other week, I was very very lucky, its normally an hour, getting the clips on is a tricky job. __________________ Lest we forget..

14th December 2018, 18:50	#5
Dallas This is my second home 1979 Capri 1.6L, 1982 Capri 1.6L, 2016 Dacia Stepway Join Date: Jun 2009 Location: Dorset Posts: 8,595 Thanks: 3,496 Thanked 3,397 Times in 2,218 Posts	How easy/hard is it to changed the heater matrix? It is easier to get to the two hoses at the bulkhead, or do I go from under the dash? Thanks fellas.

14th December 2018, 19:29	#7
Eddy600 Loves to post Rover, MG Join Date: Jul 2016 Location: Halifax Posts: 275 Thanks: 19 Thanked 77 Times in 61 Posts	On the 1.8's it's easy to get to the hoses at the back of the engine to disconnect and flush in situ, also a simple process to remove the heater matrix from the drivers footwell can be an absolute pain to refit, ive done it a few times and only once had to cut the flange and use some tubing.