* Turbocharger issues: Turbocharger failure was a significant problem for some Sky Red Lines. This could manifest as a loss of power, strange noises, or even complete failure. The relatively small turbocharger was considered by some to be prone to overheating and premature wear, especially with aggressive driving or infrequent oil changes.
* Oil consumption: Excessive oil consumption was another common complaint. This could be related to problems with the piston rings, valve seals, or turbocharger seals. Regular oil level checks were crucial to avoid engine damage.
* Leaking oil: Oil leaks weren't uncommon, often stemming from the valve cover gasket or other seals.
* Intercooler problems: The intercooler, responsible for cooling the compressed air from the turbocharger, could develop leaks or become otherwise compromised, affecting engine performance and potentially leading to further problems.
* Rod bearing failure (less common but serious): In some extreme cases, rod bearing failure occurred, often linked to insufficient lubrication or overheating. This is a very serious problem that could result in catastrophic engine damage.
Factors influencing engine problems:
* Maintenance: Proper maintenance, including regular oil changes with the correct weight oil, was essential to minimize the risk of these issues. Neglecting maintenance significantly increased the likelihood of engine problems.
* Driving style: Aggressive driving and frequent high-RPM operation put extra stress on the engine components, particularly the turbocharger.
* Modifications: Modifications to the engine, especially those increasing boost pressure, could dramatically shorten engine lifespan.
It's important to note that not all Saturn Sky Red Lines experienced these problems. Many owners reported reliable service. However, the potential for these issues is a significant factor to consider if you're considering buying one. A thorough pre-purchase inspection by a mechanic specializing in turbocharged vehicles is strongly recommended.
