THE HEAT IN THE CAR VERY SELDOM WORKS IF ...

  • Tiny
  • jamboolia
  • 2001 Jaguar S-Type
  • 130,000 miles

The heat in the car very seldom works, if anything we get cold air blowing on both sides. The 3 hoses going into the cabin are all hot. We tried unplugging the HCCV to get full heat but still cold air. Tried flushing the system to no avail either. Please help very cold winter.

Wednesday, December 19th, 2012 AT 12:45 AM

10 Answers

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

Check to see if the blend air door is working properly. It is located near the heater core and if it doesn't open, you won't get heat.

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Wednesday, December 19th, 2012 AT 1:05 AM
  • Tiny
  • jamboolia
  • Member

It does open and shut.

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Wednesday, December 19th, 2012 AT 1:34 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

If you are saying the heater hoses are hot, that tells me the core is hot. If the doors are open, you should be getting heat.

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Wednesday, December 19th, 2012 AT 1:42 AM
  • Tiny
  • jamboolia
  • Member

Well we are still not getting any heat.

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Saturday, December 22nd, 2012 AT 9:04 PM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

Think about it, If the core is hot and the blend air doors are in the right position, you have to get heat. Something tells me that the blend air door is not in the correct position.

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Sunday, December 23rd, 2012 AT 10:41 PM
  • Tiny
  • jamboolia
  • Member

So is there a trick to checking the blend door if it's working correctly?

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Monday, December 24th, 2012 AT 10:59 PM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

Adjusting the temp settings should cause it to move.

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Monday, December 24th, 2012 AT 11:07 PM
  • Tiny
  • jamboolia
  • Member

Ok I checked again for the blend doors working and now I don't hear them working. How do I fix the blend doors?

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Monday, December 31st, 2012 AT 2:18 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

You first need to determine if the actuator is broken or disconnected.

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Monday, December 31st, 2012 AT 3:08 AM
  • Tiny
  • jamboolia
  • Member

Ok how do I do that exactly?

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Saturday, January 5th, 2013 AT 4:31 AM

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