Bachelor's degree chemical engineers usually have their first job related to chemical, pharmaceutical, or biotech operations. This work may be in the field or in an office. Some young engineers work for contracting firms and may be involved in plant design, start-up, troubleshooting, or validation.
7. Get a pre-inspection. In some states, smog check stations will do a less expensive pre-inspection that shows if a car will pass or fail without officially recording the results with the state's registry of motor vehicles. If an owner knows the car is borderline, this might be a good idea, says Asmerian.
The EGR system does not pass the exhaust back through the air filter because there is too much soot which would clog the filter in a matter of minutes. So if the EGR process is too dirty to pass the exhaust through a filter, think of all that black soot that is going directly into the engine. Third, because exhaust is hot, it must first be cooled prior to re-mixing it with new air. Piping 700Â°F gasses into the engine is a recipe for disaster.