1999 Porsche Boxster Engine cooling Problems

“I had driven the car without incident to a store. When I tried to start the car later it would not start. It was determined by both an independent mechanic and a Porsche dealer that the car had sustained catastrophic engine failure of an unknown origin. (they were not be able to determine exactly what the problem without disassembling the engine. I did not ask them to do this.). I replaced the engine.”

“It's well documented that early production Porsche boxsters had a significant number of engine failures due to cracked or slipped cylinder liners. There was never a recall but Porsche did replace failed engines under warranty. Porsche has not divulged exactly how many engines this actually occurred in other than a broad range of 2.5 engines in late 1998-early 1999. Nor have they released any engine numbers that have had sleeves installed. I purchased my car 2 weeks ago from the original owner with 69k miles and full main dealer service history. …”

“Leaking coolant tank. The coolant tank on this vehicle has failed in numerous cars resulting in expensive repairs. Many owners I have contacted have experienced the same tank failure. I believe Porsche should fix these cars under a recall. This is clear case of a design deficency which will lead to overheating and failure of the engine. If this happens in traffic, the operater could be injured or killed. The tank must be replaced with an updated part from Porsche that has had the material changed.”

“I have a 1999 Boxster. At 9500 miles the engine blew up. Ira motors in danvers replaced it with a rebuilt engine. I have had numerous problems with this car since then but it has been under warranty. My car is always garaged in winter and has only 25,000 miles on the new motor. In mid oct. Of this year my car started running rough when started in the morning. It was due for it's 30,000 mi check up soon so I took it into the dealer. I spent $1000 for the check up and two days later picked it up and it was running rough again. Coughing, choking and stalling out. I left the car there. …”

“This low-mileage vehicle experienced a catastrophic engine failure at freeway speed. The vehicle was cruising on level freeway when the engine lost power and white smoke began pouring out of the exhaust. The engine died and would not restart on the side of the freeway and was towed to a service facility. After complete disassembly it was determined that the engine was not rebuild-able due to a slipped cylinder sleeve which resulted in piston, cylinder head and block damage. Detailed photos are available.”