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SJ50 Sierra heater not working
https://auszookers.com/forum/viewtopic.php?f=5&t=57683
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Author:  Jac2911 [ Tue May 28, 2024 7:40 pm ]
Post subject:  SJ50 Sierra heater not working

Hello, I have a 1984 SJ50 Suzuki Sierra and I am having trouble getting the heater to work. I have cleaned the heater box out by drilling a hole in the side and vacuuming/blowing it out. It blows air really strong but only cold air. If I place my hand on the 2 demister tubes that come off either side of the heater box it feels hot there but there is nothing coming out of the vents. I know hot air only comes from the windscreen and feet vents but there is no hot air coming from them either. Also no matter what mode I put it on it only blows air out of the front vents. Any photos would be a massive help aswell. Thanks for any help in advance.

Author:  Jezzer [ Wed May 29, 2024 5:11 am ]
Post subject:  Re: SJ50 Sierra heater not working

If you are only getting air flow out of the dash vents, I would say the direction flap is not moving.
Is there any tension on the slide lever?
It could be a broken cable or it’s just come off the flap.

Was the heater core just covered in leaf's etc or is it packed with mud?


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Author:  Jac2911 [ Wed May 29, 2024 5:56 am ]
Post subject:  Re: SJ50 Sierra heater not working

There is tension on the slider. Was only filled with leaves ect.

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