Nissan Frontier: Finding Failures, Faults
Nissan uses two accelerator pedal position (APP) sensors to transmit a throttle position command.
10 Things Diesel Oil Is Trying To Tell You
There are 10 important factors that determine the condition of oil and its service life.
VIDEO: Inspecting Spark Plug Appearance
A spark plug can reveal short- and long-term problems if you know where to look. This video is sponsored by Autolite.
VIDEO: Diagnosing Ignition Related Misfires
By performing these easy checks, you can determine if the spark plug wires are the problem or it is another component in the ignition system or on the engine.
Tech Tips: Direct Fuel Injection Cleaning
Models: 2009-2014 GM Vehicles With Any of the Following Direct-Injected Gasoline Engines 2.0L (RPO LNF) 2.4L (RPO LAF, LEA, or LUK) 2.8L (RPO LAU) 3.0L (RPO LF1 or LFW) 3.6L (RPO LFX or LLT) Some customers may complain of a MIL (malfunction indicator lamp, or check engine light) and engine misfire. In some cases, the
10 Things To Learn From Oil Analysis
For most consumers, a preventive maintenance program for their automobile consists of nothing more than an oil change. While a regular oil change is very important, the most critical part of changing the oil is to know when to change the oil.
Failing O2 Sensors Result In Increased Emissions And Fuel Consumption
The engine computer needs to know what the fuel mixture is with a high degree of precision so it can optimize fuel economy as well as emissions. If the information received by the powertrain control module (PCM) from its sensors is not accurate, it may command too much fuel or not enough.
The Science Behind Precious Metal Spark Plugs
The higher melting point of iridium and platinum allows spark plug manufacturers to reduce the diameter of the center electrode. The smaller the diameter of the center electrode, the lower the voltage needed to start the spark. The finer point means that the electrode can absorb heat easier and faster, leading to improved acceleration, fuel consumption and smoother idling.
Addressing Extended Oil Changes on Modern Vehicles
Auto manufacturers, in general, are continuing to reduce vehicle maintenance requirements by extending oil change intervals. But extended oil change intervals are a mixed blessing. On the upside, extended oil change intervals are conserving precious oil and reducing carbon emissions. On the downside, many vehicle owners are forgetting to check their engine’s oil level between
Component Connection: Filter Replacement — Containing the Contaminants
Although air and fuel filter maintenance is usually considered a “no-brainer” by most automotive repair shops, advancing OE technology is changing the way you should be performing air and fuel filter maintenance.