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11th December 2016, 21:40 | #1 |
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Aircon growling at me?
It always had the occasional whale noise. But today it started growling when the compressor kicks in, looking around it could be lack of oil in the mix, low gas pressure, or the compressor bearings...?
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11th December 2016, 21:59 | #2 |
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It's unlikely to be oil related or compressor bearings Tom. As you have a diesel engine, have a look at your crankshaft pulley. They have a habit of breaking up and causing a noise only when unable to cope with the additional load of the air conditioning compressor.
Also do the 'demist test' to check that your fan's slow speed is working. Simon
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11th December 2016, 22:01 | #3 |
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Crankshaft pulley, noted
The fan has been bugging me, it seems to be running very fast. Always runs with the demist, its an old three speed fan, but does seem a bit fast
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11th December 2016, 23:42 | #4 | |
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Quote:
on a diesel without the engine running key position 2
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12th December 2016, 07:38 | #5 |
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Does it cycle on and off (demist button pressed of course)?
Simon
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12th December 2016, 10:12 | #6 |
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With the demist pressed its just on constantly regardless of the temperature outside or of the engine etc
Ive never heard it run at different speeds, when its on its quite a noise!
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12th December 2016, 12:15 | #7 | |
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Quote:
Some resistor two speed systems are rather noisy when running on the slow speed. Simon
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12th December 2016, 21:06 | #8 |
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Definitely no resistor on the fan, saw one with a gold resister at the scrappy a few weeks ago and was tempted to take it..
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13th December 2016, 08:01 | #9 |
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A few owners have inexplicably found the resistor not mounted in the usual place but tucked out of sight behind the shroud.
If you perform the trinary switch test, that will trigger the higher fan speed. I'd be interested to know if it gets even louder when you do this. Simon
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13th December 2016, 10:25 | #10 |
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Oh ill give that a go this weekend and see what happens -unfortunately the car is used from dawn until dark with winter here-
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