No hot air

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jrh
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Re: No hot air

Post by jrh » Sun Dec 22, 2024 9:48 am

Sorry but it reads like you have a head gasket leaking.
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CharlesUK
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Re: No hot air

Post by CharlesUK » Sun Dec 22, 2024 8:10 pm

jrh wrote: ↑
Sun Dec 22, 2024 9:48 am
 Sorry but it reads like you have a head gasket leaking.
Surely that wouldn’t stop it from working for at least a second after topping up and letting run to get rid of air? I don’t have any signs such as frothy/milky oil or oil in coolant.

Charles
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jrh
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Re: No hot air

Post by jrh » Mon Dec 23, 2024 3:22 pm

Cold engine , bonnet up , coolant filler caps off, fill up to very top .
Replace one cap only.
Get someone to start engine.
You watch the open cap.
If bubbles keep coming out , you have a leak.
I hope you don't but................
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Funokata
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Re: No hot air

Post by Funokata » Wed Jan 15, 2025 1:11 pm

Not quite the same issue but thought I'd ask on the same topic...Mine blows hot air but is only really hot when you're driving/revving the engine, as soon as you stop at drop to idle it cools off incredibly quickly, within seconds. And vice versa when you rev, the air changes to hot within seconds.

Is this normal?
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Micron
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Re: No hot air

Post by Micron » Wed Jan 15, 2025 2:24 pm

Funokata wrote: ↑
Wed Jan 15, 2025 1:11 pm
 Not quite the same issue but thought I'd ask on the same topic...Mine blows hot air but is only really hot when you're driving/revving the engine, as soon as you stop at drop to idle it cools off incredibly quickly, within seconds. And vice versa when you rev, the air changes to hot within seconds.

Is this normal?
You might have a blockage in the system, or a faulty water pump impeller.
Admin and Owner of this fine club 😎

Location : South Norfolk
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Funokata
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Re: No hot air

Post by Funokata » Wed Jan 15, 2025 7:01 pm

My bad...low coolant. I haven't used it much this winter and topped it only last week. Heating is fine, now I have to find the leak ... :cry:
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mojo98
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Re: No hot air

Post by mojo98 » Thu Jan 16, 2025 9:01 am

Check all your hoses, MrP (16v) kept losing coolant turned out to be a faulty hose, and on a 24v check to the pipe that runs between the front and back rocker covers,
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