Working on fuel systems does take a bit more effort and knowledge and there really aren’t any magic bullets or one-size-fits-all rules that apply to everything and make testing easier since the systems differ so much, but even so it’s definitely possible to quickly and accurately figure out what’s going wrong and fix it right the first time.
Diagnosing any vehicle’s problems without properly testing and evaluating the system is not a responsible repair technique and pretty much is asking for trouble. But realistically, understanding common problems and the tips and techniques to verify the cause and fix it quickly and correctly really does save time and money for everyone involved.
The Chevy Volt is an extended range vehicle that is similar to a hybrid vehicle since it also uses an internal combustion engine (ICE). Although the Volt’s ICE is not used in the same way as a conventional hybrid’s ICE, but rather uses the ICE as a generator to charge the HV battery.
With the introduction of the EcoBoost engine family and its ability to deliver horsepower and torque normally reserved for the largest displacement naturally aspirated engines a V6 F150 with a trailer behind it or a 3 cylinder “hot hatch” now seems perfectly natural.
Even though the carbon compounds that accumulate in the engine are unwanted, carbon is very much a part of the internal combustion engine. This is because the lubricants and fuels that are used in the engine are carbon based compounds.
Evaporative emissions (EVAP) systems have been around since the early 1970s. When an emission system has that much tenure on a vehicle, you would think diagnosing problems would be as easy. Creating a great degree of frustration is the over proliferation of unique systems that work in various manners requiring a wide variety of diagnostic approaches. The names and types of systems boggle the mind:
Fuel trim analysis always is a very interesting subject, especially when it comes to using the fuel trims to analyze drivability problems. Have you ever stopped to think about the fuel trim and what it is telling the technician?
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