Question about 2002 Volvo S80

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2002 S80 T6 engine fan will not shut off when ignition is shut off thus draining battery

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Some cars are simply wired in a manner to run the cooling fan with the key off and the doors locked in order to keep underhood temperature from climbing way too high for plastic engine parts to survive.

Usually there is not a problem with a dead battery because the fan switch will shut off the fan hours before the battery dies. If your battery is dead after such an episode it's more likely that you need a new battery than anything is basically wrong with the logic or operations of the fan switch. But it won't hurt to check the operational temperature if that is needed.

If you re-wire the switch to only operate when the key is on then you run the risk of over temperature on all your plastic parts under the hood. Some high dollar engineer has staked his/her reputation on having the wiring as it IS. It bugs the heck out of me too but maybe it's better to live with it?

Posted on Jun 28, 2009

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Why does my 2000 S80 T6 Volvo sputters?


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Dec 03, 2015 | 2000 Volvo S80

1 Answer

I have a volvo s80 T6 2002 when i want to start the car in the morning the battery is flat i changed the battery but the same problem persists i checked the alternator was good during the day when the car...


you have a short somewhere it kills the battery after sitting all night make sure no lights are staying on for example you glove box light if it doesnt shut all the way light could stay on and you dont even no it.

Feb 17, 2013 | 1999 Volvo S80

1 Answer

How to clear check engine light on s80 T6 2002


TURN OFF IGNITION!!!!!
Look under hood and take off the cover on driver's side electrical box aft of air cleaner. Find the ECM fuse and remove it for a couple of hours.
Alternate is to undo battery ground cable in trunk for a few hours.it is off until the computer sees the problem again. so it there is something that needs to be fixed then the light will come back on

Jan 10, 2012 | 2002 Volvo S80

2 Answers

I have a Volvo 2004 S80 whose blower fan motor stays on, even after the ignition switch has been turned off. What gives? Is this a normal function or should it go off like everything else when you shut it...


Not True. I have a 2004 S60 and a std features is that the blower motor will run from 10 minutes to an hour after the engine has been turned off, This is to dry the evaporator in the dash and avoid musty odors.

If it drains your battery dead there are possible issues; 1) a weak battery that needs replacing or 2) a faulty power stage/transistor unit ont he blower fan.

The transistor unit has power and ground and a digital signal from the control unit. When the transistor sticks, the the blower will not stop when the ignition is turned off.

Apr 23, 2011 | 2004 Volvo S80

1 Answer

1999 Volvo S80 T6, Starts blower on its own.


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.

Apr 08, 2010 | 1999 Volvo S80

2 Answers

Does my 2002 S80 Volvo have turbo or not?


is this a t6? if so yes. turbocharged engines have more horsepower than naturally asprirated engines, a turbo charger works like a supercharger by forcing more air into the intake, while a super charger is usually belt driven a turbocharger is exhaust driven, it will be located in the exhaust pipe or exhaust manifold and is turned by exhaust gases passing thu with the opposite side connected to the air intake pipeing, some have the intake air piped thru a intercooler which is mounted in front of the radiator(cooler air is more horsepower)
type 2002 s80 volvo in your search bar and you can find a ton of info

Nov 11, 2009 | 2000 Volvo S80

2 Answers

Volvo 2002 S80 T6 - codes P0011 and P0011


Weell it sounds like you have the days old problem Pepole dont know how to look after there cars.
The muck you still have in the engine isent doing it any good and so you have to get rid of it all, as its in the engine block and is got to go ,,so drain a little of water out and put in 1/2 a cup of washing up liquid in the radiator and start the engine and let it get hot and take the reves up to 1000 rpm now and then to keep the water going around the system, after about 1/4 hr turn off,,stand for 10 minutes ,,and then remove the cap slowly and then take off the Bottom hose and let all water out also take off Top hose at the engine end and put the house water hose in the top and turn it on till all water comes out clean. Then put hose up into the bottom hose and do the same again ,and the same in top again.Now with a clean engine you can do the same to the new Radiator and wash out all gunk .then check the thermostat and make sure its 100% (any doubt through it out) and take note how it comes out so you can fit a new one the same way,
Now refit both hoses and fill with coolant or antifreeze and TURN on the heater to hot before starting as you also have to get out the air from heater when it was drained and you will trap the air which might cause you code problems..
But now try service light reset
1,,Turn Ignition to Number 1position.
2,,Press and hold "day counter"reset button and turn
ignition to II(second) position,hold down for about 12 seconds.
3,,Afterservice light flashes,release button,there should be 2 beeps confirming reset was successful.
Let me know how you get on .. Ron

Nov 02, 2009 | 2002 Volvo S80

2 Answers

How do I reset engine light


disconnect the battery for 5 minutes or use a scan tool, the scan tool is prefered method.

Apr 27, 2009 | 2000 Volvo S80

3 Answers

My 2003 Volvo S80 cruise control workds sporadically.


IT SOUNDS LIKE A PROBLEM IN THE ACCUATOR MIGHT NEED ADJUSTMENT OR PROBLEM IN THAT CIRCUT

Apr 13, 2009 | 2003 Volvo S80

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