2004 PORSCHE 911 GT3

THE CAR WAS BEING DRIVEN WHEN SUDDENLY THE COOLANT SYSTEM FAILED AND COOLANT SPILLED FROM UNDER THE ENGINE CAUSING MY CAR TO SKID OUT OF CONTROL. THE COOLANT ALSO POSED A HAZARD TO OTHER CARS ON THE ROAD DUE TO THE EXTREMELY SLIPPERY NATURE OF THE LIQUID. THE CAR HAD TO BE TOWED TO AN INDEPENDENT MECHANIC. THE COOLANT LINES HAD TO BE REPLACED AND WELDED RATHER THAN THE EPOXY GLUE THAT WAS USED IN THE ORIGINAL COOLANT FITTINGS. PORSCHE DEALERSHIPS WOULD ONLY USE EPOXY TO SEAL THE FITTINGS WHICH WOULD ONLY EVENTUALLY LEAD TO ANOTHER FAILURE.

Mileage: 25,500

I WAS DRIVING AROUND A CORNER ABOUT 40 MPH WHEN THE CAR SUDDENLY SPUN AROUND. I THEN SAW STEAM COMING FROM THE ENGINE. UPON FURTHER INSPECTION THERE WAS COOLANT ON THE GROUND. ONE OF THE COOLANT FITTINGS HAD COME COMPLETELY LOOSE, AND ALL THE COOLANT HAD LEAKED OUT. THE ONLY REAL FIX IS TO WELD ALL THE COOLANT FITTINGS. THERE ARE 9 OF THEM AND THE ENGINE HAS TO BE REMOVED TO DO THE WELDING. IT COST ME $2500 TO FIX THIS DEFECT. THIS IS A SAFETY ISSUE AS I WAS LUCKY I DID NOT HIT ANY ONE OR ANY THING. JUST PURE LUCK. WHEN YOU DUMP LARGE QUANTITIES OF SLIPPERY COOLANT ON TO THE REAR TIRES IT IS JUST A MATTER OF TIME BEFORE SOMEONE IS KILLED. THIS PROBLEM IS SO PREVALENT THAT MOST RACE TRACKS WON'T ALLOW A 996 OR 997 GT3, GT2 OR TURBO ON THE TRACK UNTIL THE COOLANT LINES ARE FIXED.

Mileage: 59,600

I WAS DRIVING AROUND A CORNER ABOUT 40 MPH WHEN THE CAR SUDDENLY SPUN AROUND. I THEN SAW STEAM COMING FROM THE ENGINE. UPON FURTHER INSPECTION THERE WAS COOLANT ON THE GROUND. ONE OF THE COOLANT FITTINGS HAD COME COMPLETELY LOOSE, AND ALL THE COOLANT HAD LEAKED OUT. THE ONLY REAL FIX IS TO WELD ALL THE COOLANT FITTINGS. THERE ARE 9 OF THEM AND THE ENGINE HAS TO BE REMOVED TO DO THE WELDING. IT COST ME $2500 TO FIX THIS DEFECT. THIS IS A SAFETY ISSUE AS I WAS LUCKY I DID NOT HIT ANY ONE OR ANY THING. JUST PURE LUCK. WHEN YOU DUMP LARGE QUANTITIES OF SLIPPERY COOLANT ON TO THE REAR TIRES IT IS JUST A MATTER OF TIME BEFORE SOMEONE IS KILLED. THIS PROBLEM IS SO PREVALENT THAT MOST RACE TRACKS WON'T ALLOW A 996 OR 997 GT3, GT2 OR TURBO ON THE TRACK UNTIL THE COOLANT LINES ARE FIXED.

Mileage: 59,600

ON VERY HOT DAY, OVER 100 DEGREES F, AFTER HAVING JUST EXITED A FREEWAY ONTO A CITY STREET, WHILE ACCELERATING FROM RED LIGHT, A GLUED-IN WATER COOLANT PIPE/TUBE POPPED OUT FROM ITS CAST HOUSING, CAUSING CATASTROPHIC LOSS OF ALL COOLING FLUIDS WHICH SPILLED ONTO THE ROADWAY, IMMEDIATE INCREASE IN ENGINE TEMPERATURE FROM 185 TO OVER 260 DEGREES F, AND LOSS OF POWER. CAR NEEDED TO BE TOWED TO REPAIR SHOP.

Mileage: 53,400

ON VERY HOT DAY, OVER 100 DEGREES F, AFTER HAVING JUST EXITED A FREEWAY ONTO A CITY STREET, WHILE ACCELERATING FROM RED LIGHT, A GLUED-IN WATER COOLANT PIPE/TUBE POPPED OUT FROM ITS CAST HOUSING, CAUSING CATASTROPHIC LOSS OF ALL COOLING FLUIDS WHICH SPILLED ONTO THE ROADWAY, IMMEDIATE INCREASE IN ENGINE TEMPERATURE FROM 185 TO OVER 260 DEGREES F, AND LOSS OF POWER. CAR NEEDED TO BE TOWED TO REPAIR SHOP.

Mileage: 53,400

A COOLANT LINE FITTING THAT IS EPOXIED INTO THE BLOCK BECAME SUDDENLY AND COMPLETELY DISCONNECTED. THE COOLANT ALL FLOWED OUT OF THE LEAK NEARLY INSTANTLY. THE POOL OF COOLANT CREATED A HAZARD FOR FOLLOWING CARS AND THE MOTOR NEEDED TO BE SHUT DOWN IMMEDIATELY AND THE CAR TOWED TO A SERVICE FACILITY. *JS

Mileage: 41,000

WENT TO STREETS OF WILLOW DRIVING EVENT. DURING 3RD RUN SESSION I NOTICED STEAM COMING FROM BEHIND AS I WAS TAKING A 180 DEGREE TURN. I IMMEDIATELY STOPPED THE CAR WHEN IT WAS SAFE TO DO SO AND SHUT THE ENGINE OFF. STEAM KEPT BILLOWING AND THE CAR SEEMS TO HAVE LOST ALL IT'S COOLANT IN A FEW SECONDS. 5(!) CARS BEHIND ME ALL SPUN IN THE 180 DEGREE TURN BECAUSE OF THIS FAILURE. FORTUNATELY NONE OF THEM CRASHED. AFTER EXAMINATION IT TURNS OUT ONE OF THE COOLANT FITTINGS THAT PORSCHE GLUED INTO THE MOTOR BLOCK WITH EPOXY HAD POPPED OUT. THIS APPEARS TO BE A VERY COMMON PROBLEM WITH ALL OF THESE GT ENGINES. NOT ONLY IS THIS DANGEROUS (EVERY GT2/3 ON THE ROAD IS A TICKING TIME BOMB, STREET OR TRACK) BUT IT IS ALSO COSTLY TO HAVE IT FIXED PROPERLY. NEEDLESS TO SAY I HAD MY CAR TOWED TO A SHOP THAT IS VERY FAMILIAR WITH THIS PROBLEM TO GET IT FIXED RIGHT. THE SOLUTION IS TO WELD THESE FITTINGS INTO THE MOTOR BLOCK. THERE ARE 8 OF THEM AND THE ENGINE NEEDS TO COME OUT OF THE CAR, THE FITTINGS A

Mileage: 31,000

I WAS DRIVING AT MILLER MOTORSPORTS IN TOOELE UTAH IN DRIVERS EDUCATION EVENT WHEN MY ENGINE TEMPERATURE GAUGE STARTED TO INCREASE FROM 180 DEGREES UP PAST 200 DEGREES. AS THE TEMPERATURE GAUGE WENT TO 250 DEGREES, A COOLANT FAILURE LIGHT CAME ON. I PULLED OFF THE TRACK AND SHUT DOWN THE CAR WITHIN 2 MINUTES OF THE FAILURE LIGHT AND I HAD TO BE TOWED OFF THE MILLER MOTORSPORTS TRACK. I HAD LOST ALL OF MY COOLANT FROM THE CAR. THE NEXT MORNING (SUNDAY) I TOOK A RENTAL CAR BACK TO MILLER MOTORSPORTS ALONG WITH 9 GALLONS OF DISTILLED WATER. I POURED 2 GALLONS OF DISTILLED WATER INTO THE CAR, AND THEN STARTED IT. ABOUT SEVEN MINUTES LATER, WATER STARTED SPURTING FROM AN ALUMINUM COOLANT LINE ATTACHMENT THAT HAD COME UNGLUED. THIS ALUMINUM ATTACHMENT WAS IN A PLACE ON THE TOP OF THE ENGINE THAT WAS READILY DETERMINABLE AS THE WATER WAS SHOOTING STRAIGHT UP FROM WHERE THE FITTING HAD COME UNGLUED AND SLIPPED OFF. I DO NOT CURRENTLY KNOW WHETHER I GOT THE CAR STOPPED IN TIME FOR THE ENGINE T

Mileage: 28,010

I WAS DRIVING AT MILLER MOTORSPORTS IN TOOELE UTAH IN DRIVERS EDUCATION EVENT WHEN MY ENGINE TEMPERATURE GAUGE STARTED TO INCREASE FROM 180 DEGREES UP PAST 200 DEGREES. AS THE TEMPERATURE GAUGE WENT TO 250 DEGREES, A COOLANT FAILURE LIGHT CAME ON. I PULLED OFF THE TRACK AND SHUT DOWN THE CAR WITHIN 2 MINUTES OF THE FAILURE LIGHT AND I HAD TO BE TOWED OFF THE MILLER MOTORSPORTS TRACK. I HAD LOST ALL OF MY COOLANT FROM THE CAR. THE NEXT MORNING (SUNDAY) I TOOK A RENTAL CAR BACK TO MILLER MOTORSPORTS ALONG WITH 9 GALLONS OF DISTILLED WATER. I POURED 2 GALLONS OF DISTILLED WATER INTO THE CAR, AND THEN STARTED IT. ABOUT SEVEN MINUTES LATER, WATER STARTED SPURTING FROM AN ALUMINUM COOLANT LINE ATTACHMENT THAT HAD COME UNGLUED. THIS ALUMINUM ATTACHMENT WAS IN A PLACE ON THE TOP OF THE ENGINE THAT WAS READILY DETERMINABLE AS THE WATER WAS SHOOTING STRAIGHT UP FROM WHERE THE FITTING HAD COME UNGLUED AND SLIPPED OFF. I DO NOT CURRENTLY KNOW WHETHER I GOT THE CAR STOPPED IN TIME FOR THE ENGINE T

Mileage: 28,010

THE EPOXY HOLDING AN ALUMINUM ELBOW THAT CONNECTS A COOLANT HOSE TO THE WATER PUMP (I BELIEVE) LET GO, THE ELBOW WORKED ITS WAY LOOSE FROM THE PUMP AND EMPTIED THE COOLANT FROM THE SYSTEM OUT ONTO THE ROAD SURFACE. I BECAME AWARE OF THE PROBLEM WHEN I NOTICED THAT THE ENGINE TEMPERATURE NEEDLE HAD PEGGED AT THE HIGH END OF THE GAUGE RANGE, AFTER WHICH THE ENGINE TEMPERATURE WARNING LIGHT CAME ON. PRIOR THERETO, THE ENGINE TEMPERATURE GAUGE HAD BEEN READING AT NORMAL LEVELS AND RESPONDING NORMALLY. I WAS ABLE TO STOP WITHOUT AN ACCIDENT, BUT I NOTICED AFTER STOPPING THAT THE RIGHT REAR TIRE AND WHEEL WELL WERE WET AND SLIPPERY WITH COOLANT.

Mileage: 40,800

WHILE DRIVING AT A DRIVERS EDUCATION EVENT AT WATKINS GLEN RACE TRACK, A COOLANT FITTING CAME APART AND OUT OF ITS HOUSING RELEASING ABOUT 3-4 GALLONS OF COOLANT ONTO THE TRACK. LUCKILY NO ACCIDENT OCCURRED. SINCE THE CAR WAS STILL UNDER WARRANTY PORSCHE AGREED TO COVER THE FAILURE UNDER GOOD WILL AND A NEW HOUSING (SAME DESIGN) WAS INSTALLED BY THE LOCAL PORSCHE DEALER. HOWEVER, IN OCTOBER, 2011 WHILE DRIVING AT ANOTHER DRIVERS EDUCATION EVENT, THE SAME FITTING FAILED. THIS TIME 3 CARS FOLLOWING ME SLID OFF THE TRACK DUE TO THE COOLANT WITH ONE CRASHING INTO ANOTHER. ONE CAR WAS TOTALED AND THE OTHER SERIOUSLY DAMAGED. *TR

Mileage: 37,292

A COOLANT LINE CAME LOOSE THEN I WAS DRIVING THE CAR. I WAS VERY LUCKY I DID NOT SPIN IN THE COOLANT, AND GET IN A SERIOUS ACCIDENT. THIS IS A VERY SERIOUS SAFETY ISSUE. THE LINES WERE ORIGINALLY "GLUED" IN FROM THE FACTORY. THIS WAS A POOR DESIGN AND IS A WEAKNESS OF THE CAR WHICH COULD HAVE BEEN CATASTROPHIC IN TERMS OF DESTROYING THE ENGINE, AND GETTING IN A SERIOUS ACCIDENT. IN ORDER TO PROPERLY ADDRESS THE DESIGN ISSUE I WAS QUOTED OVER $3,000 TO RESOLVE THE ISSUE. THIS INVOLVES TAKING THE ENGINE OUT AND WELDING THE LINES. I BELIEVE PORSCHE SHOULD PAY FOR THE REPAIR. *TR

Mileage: 34,000

A COOLANT LINE CAME LOOSE THEN I WAS DRIVING THE CAR. I WAS VERY LUCKY I DID NOT SPIN IN THE COOLANT, AND GET IN A SERIOUS ACCIDENT. THIS IS A VERY SERIOUS SAFETY ISSUE. THE LINES WERE ORIGINALLY "GLUED" IN FROM THE FACTORY. THIS WAS A POOR DESIGN AND IS A WEAKNESS OF THE CAR WHICH COULD HAVE BEEN CATASTROPHIC IN TERMS OF DESTROYING THE ENGINE, AND GETTING IN A SERIOUS ACCIDENT. IN ORDER TO PROPERLY ADDRESS THE DESIGN ISSUE I WAS QUOTED OVER $3,000 TO RESOLVE THE ISSUE. THIS INVOLVES TAKING THE ENGINE OUT AND WELDING THE LINES. I BELIEVE PORSCHE SHOULD PAY FOR THE REPAIR. *TR

Mileage: 34,000

WHILE DRIVING THE CAR ON TRACK, A COOLANT FITTING BROKE LOOSE AND DUMPED ALL THE ANTIFREEZE DOWN ONTO THE TRACK SURFACE. A VEHICLE ON TRACK BEHIND ME RAN OVER THE ANTIFREEZE, LOST CONTROL AND SKIDDED OFF THE TRACK. THE DRIVER OF THE OTHER CAR WASN'T INJURED AND THERE DIDN'T APPEAR TO BE MUCH DAMAGE TO HIS CAR, EXCEPT PERHAPS SOME SCUFFING OF THE PAINT ON HIS FRONT BUMPER. THE FITTING THAT CAME LOOSE IS ONE OF 8 FITTINGS THAT PORSCHE GLUED INTO PLACE WHEN THEY ORIGINALLY BUILT THE ENGINE OF MY 04 GT3. WHEN THE GLUE GETS OLD IT LETS GO, AND THAT'S WHAT HAPPENED TO ME. I HAD TO FLAT BED THE CAR FROM THE TRACK TO A REPAIR SHOP, PAY THEM TO DROP THE ENGINE, COMPLETELY DISASSEMBLE ALL THE COOLANT MANIFOLDS THAT USE THESE GLUED-IN FITTINGS, BRING THE MANIFOLDS TO A WELDING SHOP, HAVE THE WELDING SHOP WELD ALL THE FITTINGS INTO PLACE, AND THEN HAVE MY REPAIR SHOP REASSEMBLE THE ENTIRE ENGINE AND RE-INSTALL IN THE CAR. THIS RESULTED IN A CONSIDERABLE EXPENSE, AND THE LOSS OF USE OF MY CA

Mileage: 36,500

COOLANT PIPES LEAKING AFTER DRIVE. *TR

Mileage: 46,012

THIS IS IN RESPONSE TO MY AWARENESS OF NHTSA PE13-009. I AM THE THIRD OWNER OF A 2004 PORSCHE GT3 THAT I USE PRIMARILY FOR TRACK DRIVING DAYS AND OCCASIONALLY FOR STREET USE. WHEN I PURCHASED THE CAR IN 2010, I WAS AWARE OF MANY REPORTS FROM OWNERS OF SIMILAR CARS THAT HAD EXPERIENCED SUDDEN COOLANT LOSS FROM ANY OF EIGHT GLUED-IN TUBE-LIKE ALUMINUM FITTINGS TO WHICH COOLANT HOSES ARE ATTACHED. THE REPORTS DESCRIBED THE CATASTROPHIC EFFECTS OF COOLANT LOSS, PRIMARILY ON THE TRACK, THAT IN SOME CASES RESULTED IN LOSS OF CONTROL TO THE AFFECTED CAR AND/OR LOSS OF CONTROL TO CARS FOLLOWING THAT CAR. A NUMBER OF CRASHES WERE REPORTED. THESE REPORTS ARE CONTAINED IN VARIOUS ONLINE FORUMS, INCLUDING RENNLIST.COM. BECAUSE I WAS CONCERNED ABOUT THE POSSIBILITY OF THIS FAILURE OCCURRING TO MY CAR, I PROPHYLACTICALLY HAD MY ENGINE REMOVED AND ALL EIGHT COOLANT PIPES WELDED INTO THE ALUMINUM MANIFOLDS THAT THEY HAD ORIGINALLY BEEN GLUED INTO. I DID THIS AT A COST OF $2500. I THINK IT WOULD BE

Mileage: 14,600

I PURCHASED MY 2004 PORSCHE GT3 IN MAY OF 2009. IT HAD JUST UNDER 20,000 MILES ON IT. IN AUGUST, 2010, I WAS DRIVING ON TRACK AT TEXAS MOTOR SPEEDWAY AND ONE OF THE COOLANT FITTINGS CAME LOOSE FROM THE ENGINE. THE EPOXY THAT HOLDS THE PRESS-FIT COUPLER TO ONE OF THE HEAT EXCHANGERS HAD LOST ITS ABILITY TO RETAIN THE FITTING AND CAME DISCONNECTED. ALL OF THE ENGINE COOLANT WAS LOST IN A SINGLE INSTANCE. [CATASTROPHIC COOLANT LOSS]. I HAD THAT FITTING REPLACED BY THE PORSCHE DEALER IN DALLAS UNDER AFTERMARKET WARRANTY. I CAN PROVIDE INFO REGARDING THE ON THIS AT YOUR REQUEST, AND I HAVE SOME PICTURES OF THE OFFENDING PART. I HAD A SECOND (AND SEPARATE) FITTING FAIL IN JANUARY 2011 AT 35,000 WHILE DRIVING ON TRACK AT MOTORSPORT RANCH HOUSTON. THEY SAME SYMPTOMS WERE FOUND - THE PRESS-FIT COUPLING HAD COME LOOSE RESULTING IN COMPLETE COOLANT LOSS. THIS WAS ALSO REPAIRED WITH A FACTORY REPLACEMENT PART UNDER AFTERMARKET WARRANTY AT THE PORSCHE DEALER IN HOUSTON. I BELIEVE T

Mileage: 20,000

I HAD PRO-ACTIVE REPAIRS PERFORMED ON MY 2004 PORSCHE GT3 COOLANT SYSTEM DUE TO KNOWN ISSUE OF COOLANT PIPES SEPARATING FROM THE ENGINE. I HAD THE REPAIR PERFORMED BECAUSE I WAS AFRAID OF LOSING CONTROL OF MY VEHICLE (IT IS MY DAILY DRIVER) OR CAUSING A CRASH BEHIND ME. THE REPAIRS COST ME $3900 + CA STATE TAX (7.75%) FOR A TOTAL OF: $4200+. *TR

Mileage: 18,000

I HAD PRO-ACTIVE REPAIRS PERFORMED ON MY 2004 PORSCHE GT3 COOLANT SYSTEM DUE TO KNOWN ISSUE OF COOLANT PIPES SEPARATING FROM THE ENGINE. I HAD THE REPAIR PERFORMED BECAUSE I WAS AFRAID OF LOSING CONTROL OF MY VEHICLE (IT IS MY DAILY DRIVER) OR CAUSING A CRASH BEHIND ME. THE REPAIRS COST ME $3900 + CA STATE TAX (7.75%) FOR A TOTAL OF: $4200+. *TR

Mileage: 18,000

EXPERIENCED SUDDEN COOLANT LOSS WHILE DRIVING ON PUBLIC ROADWAY. A BONDED-IN ALUMINUM TUBE (SPIGOT) ON THE COOLANT DISTRIBUTION MANIFOLD POPPED OFF, RESULTING IN A MASSIVE, INSTANT COOLANT LOSS. THE COOLANT DUMPED ALL OVER THE REAR TIRE, CAUSING THE VEHICLE TO GO IN TO AN UNCONTROLLABLE SKID, RENDERING THE VEHICLE INOPERABLE. LUCKILY MYSELF, MY PASSENGER, AND NO ONE ELSE WAS INJURED. MY VEHICLE IS CURRENTLY AT A PORSCHE INDEPENDENT SHOP IN SEATTLE, WA WHERE THE ENGINE IS BEING REMOVED FROM THE VEHICLE TO ADDRESS THIS FAILED FITTING AS WELL AS ADDRESS ALL COOLANT LINE FITTINGS TO PREVENT FUTURE GLUE FAILURES. THE SHOP IS WELDING ALL COOLANT FITTINGS AS IT SEEMS THE FACTORY GLUE IS NOT SUFFICIENT AT HOLDING THE ALUMINUM TUBES TOGETHER. TOTAL OUT OF POCKET COST TO ME IS ESTIMATED TO BE MORE THAN $4500 FOR PARTS AND LABOR. THE FOLLOWING ARTICLE WRITTEN BY A PORSCHE TUNER DOES A VERY GOOD JOB OF EXPLAINING THE PROBLEM IN DETAIL: HTTP://SHARKWERKS.COM/PORSCHE/TECHNICAL-ARTICLES/

Mileage: 51,000