Check Out The October Issue Of Underhood Service Magazine
The digital version of the October issue of Underhood Service is available on-line. Access the easy-to-view digital version that features articles on SAE J2534, Fuel And Ignition Waveforms, Oil Additives, Knock Sensor Diagnostics, Ford Power Stroke Guide, Secondary Air Injection, Freeze Frame Diagnostics, Turbo Service, Embracing ADAS, HVAC Sensors, a host of Tech Tips, and more!
Smart Fuel Pump Diagnostics
If you are diagnosing a “cranks but does not run” or a “lean/stumbling under load” complaint, your first instinct might be a problem with the fuel pump. But, how do you assess the condition of the fuel pump without taking it apart?
Nissan PCM Computer-Control Issues
The American writer Irene Peter said it best: “Just because everything is different doesn’t mean anything has changed.” By 2018, I thought everything had changed since the days of On-Board Diagnostics I (OBD I). Since OBD I evolved into OBD II in 1996, many things did indeed appear to be different. But, once in a great while, engineers design a vehicle that is slightly ahead of its time. For me, it was a 1995 Nissan pickup equipped with the 3.0-liter V6 engine and manual transmission. Surely being an oddity, it would start and run with the distributor disconnected.
Hickok Waekon Introduces The Auto Wave II
The 75200 Auto Wave II is an auto-setting waveform viewer with a two channel automotive oscilloscope to view secondary ignition or current ramping waveforms.
Crankshaft And Camshaft Signals
The key to diagnosing many cranking, no-start and stalling problems found on the late-model import is to understand how the crankshaft and camshaft position sensors function and what their mechanical relationship is to each other.
VIDEO: How Not To Test A Spark Plug
Contrary to popular belief, testing a spark plug outside the cylinder won’t give you accurate results. Find out why air pressure matters and how to properly perform the test by measuring secondary ignition waveforms with Andrew Markel. Sponsored by DENSO.
Check Out The March Issue Of Underhood Service Magazine
The digital version of the March issue of Underhood Service is available on-line. Access the easy-to-view digital version that features articles on OBDII Emissions Monitors, ACEA Oil Specifications, Camshaft and Crankshaft Waveforms, MLS Gasket Update, Spark Plug Fouling Diagnostics, Audi TPMS Diagnostics, Honda: iVTEC and Timing Chains , a host of Tech Tips, and more!
Fuel Injector Function Testing
If a fuel injector is not operating within set parameters, it can cause driveability symptoms and codes that can point to components other than a faltering fuel injector.
Timing Chain Stretch: It Could Be Neglected Oil Changes And The Wrong Oil
Timing chain stretch is not the stretching of the timing chain, it is an elongation of the timing chain caused by wear to the chain’s components. The most common cause of timing chain stretch is lack of maintenance and regular oil changes.
Check Out The January Issue Of Underhood Service Magazine
The digital version of the January issue of Underhood Service is available on-line. Access the easy-to-view digital version that features articles on Oil Testing, Secondary Ignition Waveforms, Stretch Belts, TPMS Service, Evaporative Vapor Emissions Control, a host of Tech Tips, and more!
