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Discussion Starter · #1 ·
Received in the mail on Friday, 17-Jul-09, the Recall Notice for the cooling fan fix on my S80. The letter states that Volvo has found a software programming error in the Fan Control Module (FCM). The corrective action will be to upgrade the FCM software by replacing the FCM. The dealer will do the upgrade on my car tomorrow, 21-Jul-09. The weather is supposed to be warm and humid for the next few days, so I'll be testing that cooling fan as soon as I get the car back. I will be looking for my A/C performance to improve when the car is at standstill. Up till now, in warm weather with the A/C on, the air blowing out the dash vents would no longer be cold when the car was stopped at traffic lights. Now I wonder how hot my engine was getting during these times. I'm still inquiring into adding an aftermarket coolant temp gauge.
 

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Re: Going in for Cooling Fan Fix (MAC1LSR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>MAC1LSR</b> »</i></TD></TR><TR><TD CLASS="quote">Received in the mail on Friday, 17-Jul-09, the Recall Notice for the cooling fan fix on my S80. The letter states that Volvo has found a software programming error in the Fan Control Module (FCM). The corrective action will be to upgrade the FCM software by replacing the FCM. The dealer will do the upgrade on my car tomorrow, 21-Jul-09. The weather is supposed to be warm and humid for the next few days, so I'll be testing that cooling fan as soon as I get the car back. I will be looking for my A/C performance to improve when the car is at standstill. Up till now, in warm weather with the A/C on, the air blowing out the dash vents would no longer be cold when the car was stopped at traffic lights. Now I wonder how hot my engine was getting during these times. I'm still inquiring into adding an aftermarket coolant temp gauge.</TD></TR></TABLE><p>My car overheated when it was blowing hot air at stop lights. They replaced the fan twice. Finally got the new FCM the other day. In actuality, when the car starts to blow hot air, it's trying to prevent itself from overheating. This was a manual trick in the old days. If your temp gauge started to rise, you'd turn on the heat to help out. Now the car does that automatically.
 

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Re: Going in for Cooling Fan Fix (Freeworld)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Freeworld</b> »</i></TD></TR><TR><TD CLASS="quote"><p>My car overheated when it was blowing hot air at stop lights. They replaced the fan twice. Finally got the new FCM the other day. In actuality, when the car starts to blow hot air, it's trying to prevent itself from overheating. This was a manual trick in the old days. If your temp gauge started to rise, you'd turn on the heat to help out. Now the car does that automatically.</TD></TR></TABLE><p>Oh cool. So if you have the AC on, but hot air begins to blow out, you know your car is overheating! But isn't it a bit late to find that out at that point?<p>Speaking of AC cutout - even under WOT, my AC keeps running. Isn't the car supposed to temporarily stop the AC when it is under stress or such?
 

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Discussion Starter · #4 ·
Re: Going in for Cooling Fan Fix (vivek9856)

Yes, it probably is almost too late for the engine when the A/C starts to blow warm air. Without a temp gauge, who knows how hot the engine is at that point. That's why I want to install a temp gauge. <p>As for the A/C cutout, maybe our Volvos are smart enough to know that WOT equates to a high stress situation, so the A/C keeps running to keep the driver cool (physically and mentally). And you know, the 3.2 has such an abundance of power, you can keep the A/C on all the time.
 

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Discussion Starter · #5 ·
Re: Going in for Cooling Fan Fix (MAC1LSR)

Update: Dropped my car off at the dealer yesterday afternoon after waiting 1 week for a loaner car to be available. Got there at ~4:30 PM, and the Service Advisor tells me that no loaner cars had come back yet, so he would get me an Enterprise Rental car. So then why did I have to wait 1 week??? In the meantime, the Service Advisor sees that I had mentioned that my S80 A/C blows warmish air when the vehicle isn't moving on hot days. He immediately tells me that warmer air will come out of the vents when a vehicle is at standstill, because airflow through the radiator is reduced. "Not in my V70R, it doesn't", I say. Nor does that happen in any other car I have owned, but I didn't add that point. Then he tries to get agreement from the Service Manager that my car is normal. Fortunately, the Service Manager says that there shouldn't be much difference in A/C temp whether the car is moving or not. Since my car is covered by the fan control module recall, I'm not liking what I'm hearing. I verified with him that my car will have the FCM replaced, and he said it would. As I pull away in the Chevy Cobalt rental car, I felt like the Service Advisor was giving me a bit of a hard time. I just wonder why.
 

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Re: Going in for Cooling Fan Fix (MAC1LSR)

My Cobalt rental car has a beautiful coolant temperature readout, in degrees F. You have to scroll through the info menus to see it, but you can leave it displayed continuously if desired. Those of you that own newer GM cars are already familiar with this.
 

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Re: Going in for Cooling Fan Fix (MAC1LSR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>MAC1LSR</b> »</i></TD></TR><TR><TD CLASS="quote">My Cobalt rental car has a beautiful coolant temperature readout, in degrees F. You have to scroll through the info menus to see it, but you can leave it displayed continuously if desired. Those of you that own newer GM cars are already familiar with this.</TD></TR></TABLE><p>So if you have a need to look at anything else in the menu, and then the car starts blowing hot air, it's too late to change back to that display <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0"> <p>If I'm not correct, part of the FCM recall has to do with the smarts of the thing. The original unit would not alert the driver soon enough (no different than a faulty -- or heavy -- temp gauge). With the new FCM, the message, light, and beep will come on sooner if you need to shutdown the engine before it's damaged.
 

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Discussion Starter · #8 ·
Re: Going in for Cooling Fan Fix (Freeworld)

Got my S80 T6 back from the dealer yesterday with the new Fan Control Module installed. Drove home with the A/C on, but outside temp was only ~75 degrees F, with overcast sky, so I wasn't able to tell if my A/C performance at standstill was any better. Will have to wait for sunnier, hotter weather to be sure. Got home and opened the hood, engine running and fully warmed up, A/C off: saw both cooling fans cycling on and off in unison. They would run for maybe 10 seconds, then shut down for maybe 15 seconds, then come back on again. This cycle kept repeating. Don't know if this is any different than before, but that's what I saw. By the way, the coolant temperature readout in my Enterprise rental Cobalt showed a peak temp of 201 degrees F, in the same weather conditions.
 
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