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Thread: Heater Problems Returns

  1. #1
    Regular Member suj786's Avatar
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    Default Heater Problems Returns

    Took my car into vauxhall today to get heater fixed, we agreed on a new heater matrix @ £230 fitted.

    After however the chap had stripped the thing down, he found no fault in the matrix. So he decided he'd fit a new thermostat.......... but still no heat.

    They dont know whats wrong

    one of the guys at the desk mentioned that one of the pipes was cold, and the other was roasting ?????? This means nothing to me except that the one thats roasting is not doing its job ...... cos I'm freezing.

    I am so confused !!

    the car is still with them, said it would be too much hassle to put it back together and re-strip it tomorrow.

    Anybody have any idea's. maybe I can tell the vauxhall pro's how to do their job. Also where do I stand for cost. do i need to pay for this ?

  2. #2
    Regular Member Caterman's Avatar
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    Vehicle : Signum

    Trim : Elite

    Engine : 3.2 V6

    Year : 05

    Default

    If the one going to the heater is "roasting" and the other is cold there is either a blocked matrix or an air lock, have they tried "back flushing" the matrix? Swap heater pipes over and run the engine until hot. Used to be an old trick Ford had to do on the Cortina's. Heater matrix on them used to block up all the time.

  3. #3
    Regular Member ion's Avatar
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    Quote Originally Posted by caterman
    If the one going to the heater is "roasting" and the other is cold there is either a blocked matrix or an air lock, have they tried "back flushing" the matrix? Swap heater pipes over and run the engine until hot. Used to be an old trick Ford had to do on the Cortina's. Heater matrix on them used to block up all the time.

    I did that on my old metro once many years ago cos the whole system was clogged. about 15lb of cr@p came slurping out all over the drive, I'm amazed it ran. The heater was always useless anyway, your breath used to heat the car more.

    Worth a try cos as you say if one pipe's hot then there must be something stopping it getting through in that area.

  4. #4
    Regular Member Ste's Avatar
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    Vehicle : Jaguar XF 3.0D V6

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    Default

    DON'T reverse flush by reversing the heater pipes on the matrix. This will ensure that all the rust, filth, crisp packets etc that are blocking up the matrix will travel to the radiator and block that up. Then you will be having overheating problems (maybe not until summer). Overheating engines is far more serious than being cold.

    Better to connect the regular garden hose and flush with tap water down the drain, onto the road wherever it goes is better than in the rad.

  5. #5
    Regular Member ion's Avatar
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    Quote Originally Posted by Ste
    DON'T reverse flush by reversing the heater pipes on the matrix. This will ensure that all the rust, filth, crisp packets etc that are blocking up the matrix will travel to the radiator and block that up. Then you will be having overheating problems (maybe not until summer). Overheating engines is far more serious than being cold.

    Better to connect the regular garden hose and flush with tap water down the drain, onto the road wherever it goes is better than in the rad.

    Good point Ste.


    If the matrix is blocked, the rest of the system can't be too healthy either.

  6. #6
    Regular Member Beavis's Avatar
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    if one pipe is hot and the other cold,if the hot pipe is going to the heater and the cold away from it,coolant has to go through the heater control valve before the matrix maybe this is stuck shut or broken off and jammed closed
    only an idea best of luck getting it sorted

  7. #7
    Regular Member suj786's Avatar
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    just spoken to vauxhall who said they'll pick up the tab if its a manufacturing fault. jus spoken to the garage who still cant figure out whats wrong.

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