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[dpk76]

hi all,i have a 2001 3.0 elite.heaters wont blow hot,checked pipes to matrix on hot one cold.flushed matrix still the same.any ideas it could be anything else but matrix?thanks

[RobG]

Remove & plug vac hose on top of HBV and see if you get heat then

[dpk76]

hi rob ive tried that and still same.also tried flushing matrix out.wondering possible air lock?just trying things before i go and try new matrix

[Welung666]

You need to flush the matrix both ways several times. If you connect a piece of hose to each pipe in the engine bay can you blow through one and get air through?

[dpk76]

both pipes to matrix are hot now but still no heat.took vacum pipe off heater valve still nowt.doesnt seem to be much if any vacum from pipe?

[Electraglide]

Hi had this problem on a 2lt have you checked your thermastat, if it ok then it could be your water pump. as it was the later on mine .

[cndsctl]

Hi everyone,

I have a similar problem with my car although i am getting hot air in to bak of car just not the front. Anyone know what i should check or do?

[dpk76]

have not tried thermo yet but car seems to running at about 80 85 which i think may be bit below but i thought it would run less if it was thermo?

[Shackeng]

Hi had this problem on a 2lt have you checked your thermastat, if it ok then it could be your water pump. as it was the later on mine .

Unlikely. If this has failed you will overheat big-time.

[dpk76]

someone said possible heater ucu???anyone had this problem before?