definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
41,840 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2001 Porsche 911 engine problems

engine problem

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2001 Porsche 911 Owner Comments

problem #4

Feb 162014

911 6-cyl

  • 31,362 miles


Coolant leak from rear of vehicle, coolant light didn't come on seen leak from hose connection, back near rear tire could cause loss of traction have heard continuous problem with connectors from Porsche.

- Hutchinson , KS, USA

problem #3

Jul 162011


  • 72,000 miles
Coolant fitting glued into the block failed. The glue failed and the engine coolant blew all over the engine and onto the ground after bringing the car to a stop.

- Colorado Springs, CO, USA

problem #2

Nov 012011

911 6-cyl

  • 45,000 miles
Coolant line fittings leaked coolant fluid onto rear tires, created extremely unsafe driving situation. Repair consisted of removing coolant fittings (most removed by hand without tools) and welding onto block. Cost $3800 to drop motor, remove items, prep, weld, re-install motor and refill fluids.

- Colorado Springs, CO, USA

problem #1

Apr 152013


  • 19,000 miles
The Porsche 996 GT3 motors have a known issue among owners. The coolant fittings are epoxied to the engine and under high temperature/pressure usage, they are known to come lose and/or detach completely causing coolant spill all over the tires and road and deprive the engine from coolant. This causes the car the lose control and is dangerous for any cars behind the car this happened to. My car has this engine and as preventative safely maintenance, I have paid an independent shop knowledgeable about this issue to weld my fittings.

- Jersey City, NJ, USA

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