Is the engine noise normal for a Porsche 997?
The car is in good condition but the engine is making a slight tapping noise. Is this noise normal for the 3.8 997 engine? Doesn’t sound normal to me. I’m not sure what it could be, but without a PPI I would walk away. The great fear here is tapping due to excess piston movement / piston hitting head as a consequence of bore wear.
Is the Porsche 997 GT2 still in production?
The technology is still used by Porsche on the 991. Twice, in fact. After the 997 GT2 powered on to a confirmed 204mph in 2007, the GT2 RS beat it by 1mph three years later. No other factory 911 has passed the double-ton mark before or since. To refine my point, I’m not suggesting every 997 model was the best of its kind. Far from it.
Is the Porsche 997 the same as the M96?
Engines also improved for the 997: despite suspect revelations about the early M97, it doesn’t suffer from the same reputation as the M96, while the DFI engines fitted to Gen2 997s are considered bullet-proof. Make no mistake, the 997’s role should not be underestimated: if the 996 saved Porsche, the 997 saved the legacy of the 911 as we know it.
Are there IMS bearing issues on the 997?
Figure 5. 997 catalytic converters. On the early generation of the 997 from 2005-2009, it is possible to have IMS bearing issues just like on the 911 996. It’s still unapparent how frequently and at what mileage these are most likely to occur, but they still do.
What kind of noise does a Porsche 997 make?
This article applies to the Porsche 911 997 (2005-2012). There are certain noises that those of us who own a car never want to hear as they are sometimes the first indication that something has failed or is about to fail. They could also mean you’re going to have to fork out some cash.
Why does my 997 make a tapping noise?
Many 997 owners have reported hearing a tapping noise from one side of the engine and another following a cold start; one that increases in repetition with engine speed. This noise generally goes away after the car has warmed up.
Why does my 911 make a rattling noise when I start it?
Many have reported a rattling or knocking noise when their 911 is started and the engine is cold, which can last for a few seconds. This type of noise isn’t unusual for a car, especially if it has been sitting for days at a time. The root cause of the noise appears to be the air pump, which injects air into the exhaust manifolds during cold starts.
Can a bad serpentine belt on a 997 make a loud noise?
Serpentine belts in a 997 generally last around 50,000 miles, but many have reported them wearing out prematurely. Figure 2. A bad serpentine belt can cause a loud squeaking noise. Many 997 owners have reported hearing a tapping noise from one side of the engine and another following a cold start; one that increases in repetition with engine speed.