Home > Technical (L322) > 4 Zone Climate |
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mjdronfield Member Since: 04 Nov 2011 Location: Derbyshire Posts: 7634 |
You’ve prob seen this already then. Can’t see much else....
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16th Nov 2020 11:03am |
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JNC Member Since: 23 Feb 2020 Location: UK Posts: 292 |
Yeh I saw that. Can't work out where those pipes attach near the engine bay. |
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16th Nov 2020 11:17am |
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JNC Member Since: 23 Feb 2020 Location: UK Posts: 292 |
So it would seem the coolant feed and return to the rear heater matrix are just taken from the front pipes.
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16th Nov 2020 10:11pm |
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D3Jon Member Since: 15 Aug 2020 Location: Lincolnshire Posts: 371 |
Is the auxiliary electric pump running? If that's failed you would see poor circulation to the rear matrix.
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17th Nov 2020 8:53pm |
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JNC Member Since: 23 Feb 2020 Location: UK Posts: 292 |
Im sure the pump is running. After much investigation on the vehicle and parts diagrams, I’m sure the temp is controlled by the rear matrix itself.
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17th Nov 2020 9:07pm |
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D3Jon Member Since: 15 Aug 2020 Location: Lincolnshire Posts: 371 |
Ah, so if the supply pipe to the rear is getting hot, then that rules out the flow control valves in the engine bay.
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17th Nov 2020 10:45pm |
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JNC Member Since: 23 Feb 2020 Location: UK Posts: 292 |
To follow on from this turns out despite ruling out the crossover valve as I had only a few months ago repaired it, turn, it was still faulty.
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7th Dec 2020 8:56pm |
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D3Jon Member Since: 15 Aug 2020 Location: Lincolnshire Posts: 371 |
Glad you got it sorted, and apols for not getting back re. IID values - I forgot. But looks like all sorted now, which is cool 1992 RR Classic 3.9 efi Vogue
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8th Dec 2020 12:08pm |
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