2005 Vauxhall Vectra Heater problems

Tiny
MARKNIC79
  • MEMBER
  • 2005 VAUXHALL VECTRA
  • 4 CYL
  • 2WD
  • MANUAL
  • 55,000 MILES
My vectra heating fans are only blowing cold air. I have replaced the thermostat and checked the matrix and fan which is fine. I have checked the heating fuses too and there fine too. The fans are blowing well and strong but no heat is coming through at all. So I presume the fan motor is at full working condition. It seems like there is something stopping the heat coming from the matrix up through the fan system. Help!
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Saturday, October 31st, 2009 AT 8:26 AM

5 Replies

Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
Flush the cooling system. To remove any blockages !
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Monday, November 2nd, 2009 AT 4:32 AM
Tiny
MARKNIC79
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Thank you for your reply. I flushed the cooling system out when I changed the thermostat. After running the car to temperature I felt the cooling pipes to the thermostat then from the thermostat to the matrix and they were all hot. I think it could be an electrical fault. Maybe a solenoid or the temperature mixer? Something somewhere is not letting the hot air through the air vents.
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Monday, November 2nd, 2009 AT 4:51 AM
Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
Check the blend door on the heater box. It may be stuck in the cold position !
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Monday, November 2nd, 2009 AT 5:02 AM
Tiny
MARKNIC79
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Thanks Dave I will check this and let you know how I got on. Is the heater box located behind the center console air vents? Or do I need to remove the glove box to locate it?
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Monday, November 2nd, 2009 AT 5:09 AM
Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
The blend door should be located near the heater matrix and controlled by a vacuum hose you can usually access from under/behind glove box. I do not have any diagrams to supply for this vehicle as it was not released in the U.S.
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Monday, November 2nd, 2009 AT 5:14 AM

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