Determining Turbocharger Failures

VIDEO: Determining Turbocharger Failures

When a turbocharger fails, your CSI skills must be put to work. Determining why it fails may be much more difficult than replacing it. Sponsored by MAHLE.

When a turbocharger fails, your CSI skills must be put to work. Determining why it fails may be much more difficult than replacing it. Sponsored by MAHLE.

Though failures CAN be traced to the impeller or shaft of the turbocharger, the likelihood they’re the main culprit is pretty slim. Turbos are designed to last the life of an engine, so check carefully for clues that may lead to successfully diagnosing a failure.

Is the air filter dirty – or worse, missing? Little bits of debris can turn into projectiles at the super high speeds of the turbine and compressor wheels. Make sure the entire intake and fresh air system to and from the charge air cooler is clean – and always remove anything from the exhaust pipe.

Dirty, sludgy oil, a poor oil supply or a lack of coolant can all lead to turbo overheating. Be sure the oil is clean and, once it is, make sure the oil return pipe and connection to the crankcase is free of kinks and deposits. Either can lead to blockage and engine failure.

Many experts recommend replacement of both the charge air cooler and the oil return pipe when you replace a turbo.

As with every part under the hood, proper installation means all connections must be tight so that oil, air, exhaust gases and cooling water flow smoothly. Always use the proper mounting kit – including seals and fasteners. And make sure they’re tight – then check ‘em again. And never reuse old gaskets – they may be deformed or compromised in some way.

Here’s a final tip for your customers who want to be sure they won’t have to deal with turbo problems again – too much isn’t a good thing. The oil level in an engine matters as much as the quality. If the oil level is too high, it can lead to changes in the compression ratio, which forces oil into the turbine and compressor of the turbo. If this oil is sucked in and burnt again by the engine, it can lead to major damage.

You’ll probably be seeing a lot more turbos in your shop. The more you learn now will help you service them then. Thanks for watching.

You May Also Like

EV Safety Basics on the Shop Floor – Part II

As long as you follow the EV guidelines, you are going to have to use the proper PPE and insulated tools.

Staying safe while working on an electric vehicle requires the correct shop equipment as well as the correct personal protective equipment (PPE) and shortcuts are simply not an option. Let’s take a look at everything you are going to need.

We’ll start with PPE and electrical safety gloves. Class zero electrical insulating gloves rated for 1000 volts are required for EV service. Simply put, these gloves prevent high voltage from traveling through your hands, and they must be tested every time you use them by checking for a pinhole or any damage that could allow voltage to pass through a glove. A glove inflator is the most efficient way to do this. Insulating gloves must also be clean and dry so there are no conductive substances that can allow high voltage to travel outside the glove to your arm. Treat these safety gloves with extreme care. They can be damaged easily and they’re sensitive to UV rays, so they should be stored in a dark, dry environment. A ventilated UV-resistant bag is the best option. Safety gloves must also be re-certified every six months. You’ll also wear them with a leather outer glove to protect them, most prefer to wear an inner cotton glove as a liner to allow your hands to breathe.

VVT Sprockets and Solenoids

Advanced engine management systems like VVT play a crucial role in achieving this balance by allowing for dynamic adjustments to valve timing.

EV Safety Basics on the Shop Floor – Part I

It’s critical to utilize OEM service information and procedures for each and every hybrid or EV.

Empowering the Automotive Aftermarket Through Collaboration

Distributors, manufacturers, training institutions, associations and service providers all help automotive professionals stay ahead in a market that is constantly evolving with new technologies, trends and customer demands.

Understanding LSPI & Engine Oil

Using the correct manufacturer-recommended oil is crucial for peak performance and long-lasting engine health.

Other Posts
Serpentine Belt and Drive System Maintenance

Properly maintaining the entire drive system prevents premature belt wear and system failure, ensuring customer satisfaction and vehicle reliability.

Randy Breaux, Group President, GPC North America, Talks to AMN Drivetime

At NAPA, “Breaux Knows” business relationships, ABCs to avoid, and serving the automotive professional.

How Modern Car Sensors Optimize Performance and Emissions

Learn how Standard ensures accuracy, speed, and durability in their sensors to maximize engine performance and efficiency.

Five Tips for your Next Wheel Bearing Job

These practical tips are designed to save you time and frustration, ensuring a smooth, noise-free outcome for your customers.