Question about Volvo Cars & Trucks
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Volvo 2001 S80 Operation Manual
Posted on Jan 10, 2018
just unhook the battery for about 20 minutes. if you have an anti-theft radio make sure you know the code and how to enter it.
Posted on Sep 10, 2009
What about it??
I wouldn't try it if you don't know how, (specially if this is what is known as an interference engine). Valve timing is *very* delicate and stray pistons love to chew them up!
Posted on Oct 16, 2009
If you are talking about the thermo electric cooling fan, its operation is independent of the car's electical system. It is switched on and off by the engine temperature. When you park, the engine heat soaks upward to heat the thermostat turning the fan on. It will run until the engine cools down and the thermostat switches it off.
Posted on Apr 08, 2010
Testimonial: "My minds at ease now. :) Thank you."
This could be one of many problems so it's probably best checked by someone with the correct tools and knowledge.
That being said,
With your engine cold, open your hood and start your car. Check to see if your cooling fan is engaged, take note of its speed if it is. Then turn on your AC and listen for the compressor clutch to engage. once you hear it, check to see that your cooling fan is blowing, if it wasn't before. The fan should be on and in high speed whenever your AC is on, whether the engine is hot or not. If it is not, then the reason for losing cold air is that, due to the lack of being properly cooled, your freon pressure is getting too high and is causing the compressor to turn off.
If the fan is blowing as it should be, you may have a faulty compressor or the clutch on it may need to be shimmed.
Another culprit could be that your system is low on freon or the switch that senses the pressure is faulty.
And yet another culprit could be a faulty relay that is overheating and shorting out.
Sorry I couldn't give you a difinitive answer as to what the problem is, but without diagnosing it myself, this is the best I give you.
Posted on Jun 18, 2010
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