Galvernisednuts
Member Since: 28 Nov 2018
Location: Carlisle
Posts: 39
  
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jeep948 wrote:Galvernisednuts wrote:That's what mine was doing. I removed my matrix and after draining it down. I filled the matrix in the sink to check flow. I'm guessing you could possibly test it still on the car by connecting a garden hose to the heater input pipe in the engine bay and run some low pressure water through to see if it flows out of the heater output pipe .
How big a job is it to remove the matrix?
Remove centre dash including controls and radio etc. It's all torx screws. Remove tunnel console back a few inches then undo screws behind where radio etc was. Undo panel beneath steering column and footwell panel too. You'll see heater pipes into matrix. I cut a piece of hidden plastic to save removing dash further. Matrix slides out tightly into drivers footwell.after undoing the hose clamps. Be carefull with the o rings
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 10th Jan 2019 8:41 am |
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jeep948
Member Since: 16 Feb 2017
Location: Kelso
Posts: 200
 
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Thanks for that.  ‘Everyday is a school day!’
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| 22nd Jan 2019 5:11 pm |
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Tripe
Member Since: 28 Jun 2015
Location: Tasmania
Posts: 285
 
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Check the engine oil temp 2sensor in the sump
If this is playing up, the car thinks its in -30 Artic temps and it priortises heat to the engine block, and not to the HVAC.
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| 22nd Jan 2019 11:22 pm |
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jeep948
Member Since: 16 Feb 2017
Location: Kelso
Posts: 200
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How do you check to see if it’s working? Not showing anything on diagnostics. 👍 ‘Everyday is a school day!’
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| 22nd Jan 2019 11:30 pm |
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Tripe
Member Since: 28 Jun 2015
Location: Tasmania
Posts: 285
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I had symptoms of high idle speed, clunky gear changes and HVAC would only work after 10-15 mins.
Look for the live feed of the oil temperature sensor with iid tool.
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| 23rd Jan 2019 12:58 am |
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