Radiator fans are loud

Discussion on Air Conditioning/Heat & electronic controls for the same, radiators/fans/engine cooling and related items.
indianajoe
Posts: 155
Joined: Tue Jul 12, 2016 2:12 am
Location: South Bend, IN

Radiator fans are loud

Post by indianajoe » Fri Aug 26, 2016 10:14 pm

Super loud. Disconcertingly loud

Related to that fan warranty trying that's just popped up?

(My cars at 103k so no warranty)

xcidmigs
Posts: 754
Joined: Sat Feb 14, 2015 2:12 am
Location: SE PA

Re: Radiator fans are loud

Post by xcidmigs » Sat Aug 27, 2016 12:19 am

sounds like you are another victim yes, might be worth trying to cry to GM see if they cover it. They are not cheap apparently.
viewtopic.php?f=9&t=917&hilit=cooling+fan" onclick="window.open(this.href);return false;

Navy Lifer
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Re: Radiator fans are loud

Post by Navy Lifer » Sat Aug 27, 2016 2:42 am

It is "noisy"--no question about knowing that it's working!

CrashTestDummy
Posts: 2043
Joined: Sat Feb 07, 2015 8:31 pm
Location: Pearland, Texas

Re: Radiator fans are loud

Post by CrashTestDummy » Sat Aug 27, 2016 3:55 am

The high-pitched humm of the fans is one thing. When they start making a 'WOWwowWOW' sound, that's recall material.
Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2010 Tahoe PPV (her car)
1995 DGGM Impala SS
1996 BBB Impala SS (11-second DD)
1985 Firebird - 310 LS1 C Prepared autocross car.
And some others
Do YOU have my SPID?

indianajoe
Posts: 155
Joined: Tue Jul 12, 2016 2:12 am
Location: South Bend, IN

Re: Radiator fans are loud

Post by indianajoe » Sat Aug 27, 2016 2:33 pm

CrashTestDummy wrote:The high-pitched humm of the fans is one thing. When they start making a 'WOWwowWOW' sound, that's recall material.
its not a rotating WOWwowWOw sound, but a constant loud sound

we've got a full size van with a 6.0 and it didn't make as much noise out in the desert than my caprice does on a normal 80 degree day

CrashTestDummy
Posts: 2043
Joined: Sat Feb 07, 2015 8:31 pm
Location: Pearland, Texas

Re: Radiator fans are loud

Post by CrashTestDummy » Sat Aug 27, 2016 3:40 pm

Still get out there and with the engine off, see if you can wobble the fans back and forth. If you can, they need replacing. If they haven't already been replaced under the recall, you may be eligible for that. Check with the dealer.
Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2010 Tahoe PPV (her car)
1995 DGGM Impala SS
1996 BBB Impala SS (11-second DD)
1985 Firebird - 310 LS1 C Prepared autocross car.
And some others
Do YOU have my SPID?

xcidmigs
Posts: 754
Joined: Sat Feb 14, 2015 2:12 am
Location: SE PA

Re: Radiator fans are loud

Post by xcidmigs » Wed Sep 04, 2019 1:28 pm

So 3 years later I find my car now making the dreaded noise, after looking and listening to them in operation what I observe is the passenger side one seems to be the noise maker, its very obvious as it is slowing down to a stop and also seems setup that this side runs at a high speed while the driver side one is running a low speed at some points and then gets turned up I guess as car temp rises? I do not find what others have found as far as a wobble to the fan shaft itself when its off but I have not removed from car at all. Looking online I do not see anything aftermarket for this and my 2011 is out of the extended warranty period. Anyone have one of these fan motors laying around from having changed one out? I am curious if there is anything like a bearing that could just be RR inside or if its all sealed up.

https://sdparts.com/i-24100776-acdelco- ... 91945.html

slightly cheaper on rockauto etc....

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kevink
Posts: 413
Joined: Sun Aug 09, 2015 5:55 pm

Re: Radiator fans are loud

Post by kevink » Wed Sep 04, 2019 3:51 pm

Looks like the tabs at the top may hold it together. Zoom into the pic below. You may be able to bend them to get it apart. Note the reverse threads on the shaft.

https://store.partshighway.com/new-oem- ... W_NSEd7nyM
2011 9C3: 11.48 @118.

camrat68
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Joined: Mon May 01, 2017 12:47 am
Location: Appleton, WI

Re: Radiator fans are loud

Post by camrat68 » Wed Sep 04, 2019 5:20 pm

There are two 10mm bolts and the center plastic squeeze together clip at the top that holds the fan shroud down on the lower bracket. With the bolts out and the clip pinched and pulled out as well as the main harness being disconnected at the left side of the shroud, it just lifts out with some finagling around hoses.
The center nut holding each fan blade is 8mm IIRC and three phillips head screws hold each fan in place. Both motors were the same as far as I can tell.
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Jim Chesnutt
1968 Camaro -my first car.
1995 Black/White 9C1 Caprice
2012 Alto Gray Metallic 9C1 Caprice--The HoDag-Solo axle back exhaust, improved racing OTR CAI intake.
2013 Black/White 9C1--NADACOP-DOD Delete with BTR Stage II cam, Kooks Headers, Solo Hi-flow Cats and Header Back Mach Balanced kit, WestBendDyno tuned.

CrashTestDummy
Posts: 2043
Joined: Sat Feb 07, 2015 8:31 pm
Location: Pearland, Texas

Re: Radiator fans are loud

Post by CrashTestDummy » Wed Sep 04, 2019 9:02 pm

xcidmigs wrote:
Wed Sep 04, 2019 1:28 pm
So 3 years later I find my car now making the dreaded noise, after looking and listening to them in operation what I observe is the passenger side one seems to be the noise maker, its very obvious as it is slowing down to a stop and also seems setup that this side runs at a high speed while the driver side one is running a low speed at some points and then gets turned up I guess as car temp rises? I do not find what others have found as far as a wobble to the fan shaft itself when its off but I have not removed from car at all. Looking online I do not see anything aftermarket for this and my 2011 is out of the extended warranty period. Anyone have one of these fan motors laying around from having changed one out? I am curious if there is anything like a bearing that could just be RR inside or if its all sealed up.

https://sdparts.com/i-24100776-acdelco- ... 91945.html

slightly cheaper on rockauto etc....
Did your car get the recall done for the fans? If not, you're still eligible, as far as I know. We're still getting postcards from our dealer to do the seatbelt recall on the Caprice and the fan recall on the Tahoe.
Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2010 Tahoe PPV (her car)
1995 DGGM Impala SS
1996 BBB Impala SS (11-second DD)
1985 Firebird - 310 LS1 C Prepared autocross car.
And some others
Do YOU have my SPID?

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