In this cold weather I've been using the heater fan on full power and I've noticed something a little odd.
When I floor the throttle the fan speed picks up, then drops when I release the throttle. The obvious answer is that it's the alternator kicking in but this happens long before the revs pick up (it's a 1.9TD, it takes a while ).
My feeling is that something is drawing a lot of current on low throttle, but what?
Does anybody have any theories?
Odd fan behaviour
Moderator: RichardW
Odd fan behaviour
Richard
No French cars of my own at present.
Care of a 1994 205 D.
No French cars of my own at present.
Care of a 1994 205 D.
- DickieG
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Is this happening the first time you floor the throttle after starting? If so then what's happening is that by applying maximum drive it causes the glow plugs to turn off, hence removing a significant load on the electric system = faster fan speed.
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14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
That'll be it. It's not just the first time, but it's in the first few minutes.DickieG wrote:Is this happening the first time you floor the throttle after starting? If so then what's happening is that by applying maximum drive it causes the glow plugs to turn off, hence removing a significant load on the electric system = faster fan speed.
Richard
No French cars of my own at present.
Care of a 1994 205 D.
No French cars of my own at present.
Care of a 1994 205 D.