Catastrophic Coolant Hose Coupling Failure Registry - Rennlist Discussion Forums



Catastrophic Coolant Hose Coupling Failure Registry

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Old 09-21-2010, 08:38 PM   #1
deputydog95
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Default Catastrophic Coolant Hose Coupling Failure Registry

I would like to limit this registry to strictly people who have had this problem. It would be great to see just how expansive this issue really is. This is a serious problem and could easily result in a fatality under the right circumstances. Please avoid discussing the problem and post questions etc elsewhere so that the thread does not get diluted.

The posts should read as follows:

Year:
Model:
Mileage:
Circumstances surrounding failure:
Specific Coupling:
Repair Solution:
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Old 09-21-2010, 08:40 PM   #2
deputydog95
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2007
GT3
8500ish
Turn 17 at Sebring Raceway
Top driver's side behind the alternator
Engine is currently out at dealer. It is my understanding that it will be warrantied. Will update post when repair has been completed.

Last edited by deputydog95; 09-22-2010 at 09:34 AM.
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Old 09-22-2010, 12:13 AM   #3
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Year: 2004
Model: 996 GT3
Mileage: 40k
Circumstances surrounding failure: Button Willow Raceway park
Specific Coupling: J-fitting right side top of motor
Repair Solution: Safety wired J-fitting to near by bar for tension. Repaired myself.
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Old 09-22-2010, 12:29 AM   #4
Terry L
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Year:2007
Model: 997 GT3
Mileage: around 29,000
Circumstances surrounding failure: Shenandoah Circuit (noticed coolant leak while in paddock)
Specific coupling: top left rear of motor
Repair: warranty replacement of manifold with leaking joint
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Old 09-22-2010, 12:27 PM   #5
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Few years old but add me to this registry. Hopefully, Porsche will see it. https://rennlist.com/forums/996-gt2-...ml#post4433237
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Old 09-22-2010, 01:02 PM   #6
Bob Rouleau
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996 GT3 2004 in 2006 blew the fitting out of the driver's side of the coolant pump on track at around 18,000 miles. Same car in 2008 blew the right side fitting out on track at around 24,000 miles.

Based on observations at my regions DEs it seems that all of the 2004 GT3's blow a coolant line sooner or later.
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Old 09-22-2010, 01:18 PM   #7
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2004 GT3
15000 miles
Laguna Seca T9
hose was in front of rear right tire.
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Old 09-22-2010, 04:03 PM   #8
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2004
Row GT3 clubsport
40000klm
road
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Old 09-22-2010, 07:03 PM   #9
Larry Cable
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Quote:
Originally Posted by deputydog95 View Post
I would like to limit this registry to strictly people who have had this problem. It would be great to see just how expansive this issue really is. This is a serious problem and could easily result in a fatality under the right circumstances. Please avoid discussing the problem and post questions etc elsewhere so that the thread does not get diluted.

The posts should read as follows:

Year:
Model:
Mileage:
Circumstances surrounding failure:
Specific Coupling:
Repair Solution:
you posted to 996 GT3 an TT forums also?
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Old 09-22-2010, 11:22 PM   #10
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I had cited my personal experience on Datax' thread back in 2007...

Year: 2004
Model: 996 GT3
Mileage: 10k
Circumstances surrounding failure: Miller Motorsports Park - 100+ degree track day, and hose got brittle and slipped off connection
Specific Coupling: bypass hose on the right side of the enginer
Repair Solution: Use Red Line Water Wetter and replace all hoses and connections once per year (cheap insurance)

-B
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Old 09-22-2010, 11:58 PM   #11
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Quote:
Originally Posted by mooty View Post
2004 GT3
15000 miles
Laguna Seca T9
hose was in front of rear right tire.
Where did you end up?
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Old 09-23-2010, 12:31 AM   #12
lawjdc
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2007
GT3
6500 miles
Laguna Seca Turn 2 - 360 spin, kept it on track
coupling hose on back side of motor
repair solution - Matt at Sporthaus (now Reno Rennsport)
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Old 09-23-2010, 12:36 AM   #13
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Year: 2004 996GT3
Model: gt3
Mileage: about 20000
Circumstances surrounding failure: thunderhill dumped all coolant as I entered track at WOT, limped off track at back straight
Specific Coupling: coupling did not fail, hose split down the middle. hose directly off of water pump at right side of motor as viewed from rear of car
Repair Solution: new hose
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Old 09-23-2010, 12:37 AM   #14
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Year: 2004
Model: 996 GT3
Mileage: about 51k
Circumstances: Pocono along back straight
Coupling: Metal press fitting separated (? location)
Solution: Repaired with stock part
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Old 09-23-2010, 12:47 AM   #15
Wolk's Wagon
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2002
996TT
35,000 miles
Texas World Speedway turn 3
Right side large J hose split down middle
Replace all coolant lines
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