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Car Forum / Volvo Cars / November 2006

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1996 S70GLT - Insufficient Heat

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mjc<DELETETHIS>13 - 05 Nov 2006 09:26 GMT
A friend at work has this car (I think I go the year right),
and she says that the heater isn't working well, even with the
climate control cranked up to max. What are usual suspects for
this car? Heater control valve? Climate control thermostat? She's
had the coolant changed regularly.
Reply to this Message
Roadie - 06 Nov 2006 13:29 GMT
First thing I would check would be whether the engine is reaching
proper operating temperature.  If not a bad engine thermostat is a
possible cause.

> A friend at work has this car (I think I go the year right),
> and she says that the heater isn't working well, even with the
> climate control cranked up to max. What are usual suspects for
> this car? Heater control valve? Climate control thermostat? She's
> had the coolant changed regularly.
Reply to this Message
mjc<DELETETHIS>13 - 07 Nov 2006 04:25 GMT
> First thing I would check would be whether the engine is reaching
> proper operating temperature.  If not a bad engine thermostat is a
> possible cause.

   The temp guage is in the normal range.

>>A friend at work has this car (I think I go the year right),
>>and she says that the heater isn't working well, even with the
>>climate control cranked up to max. What are usual suspects for
>>this car? Heater control valve? Climate control thermostat? She's
>>had the coolant changed regularly.
Reply to this Message
Roadie - 07 Nov 2006 16:22 GMT
If the engine is reaching normal operating temperature then my next
choice would be one of the vacuum operated doors within the heater
assembly.

> > First thing I would check would be whether the engine is reaching
> > proper operating temperature.  If not a bad engine thermostat is a
[quoted text clipped - 7 lines]
> >>this car? Heater control valve? Climate control thermostat? She's
> >>had the coolant changed regularly.
Reply to this Message
Mike F - 08 Nov 2006 14:03 GMT
"mjc13" wrote:

> > First thing I would check would be whether the engine is reaching
> > proper operating temperature.  If not a bad engine thermostat is a
[quoted text clipped - 7 lines]
> >>this car? Heater control valve? Climate control thermostat? She's
> >>had the coolant changed regularly.

The temp gauge is not a real temp gauge.  It's designed to read normal
over a wide range of temperatures, to stop people from whining about
normal temperature fluctuations.  Start with a new thermostat.

Signature

Mike F.
Thornhill (near Toronto), Ont.

Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)

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