EPA Allows for the Selling of E15 Fuel for Newer Vehicles
A decision on the use of E15 in model year 2001 to 2006 vehicles will be made after EPA receives the results of additional DOE testing, which is expected to be completed in November.
Tech Feature: The DeLorean – Back From the Past
The DeLorean was often referred to as “the ethical sports car,” leading to the relatively small V6 engine and stainless-over-fiberglass construction with good fuel economy and long life in mind.
Tech Feature: General Motor’s Ecotec 2.0L Turbo Engine
General Motors introduced its powerful Ecotec 2.0L direct
Tech Feature: Diagnosing Automotive Lab Scope Dilemmas
Although digital storage oscilloscopes or “lab scopes” have now become standard equipment for most modern automotive repair shops, they still possess a mystique that tends to intimidate many technicians. Right off the top, a lab scope is basically a voltmeter that displays voltage signals along a time base. The vertical scale measures the amplitude or amount of the voltage and the horizontal scale measures an incremental time line along which the signals are displayed.
Tech Tip: 1987-93 Jeep 4.0L: Head Gasket Leaks/Seepage Found in Engines
Some vehicles equipped with a 4.0L engine, may experience engine oil leaks/seepage from the head gasket along the right-hand side (tappet rail) of the engine.
Tech Tip: Honda’s V6 Engine Leaks Oil from Front/Middle/Rear
If oil is leaking from the front, middle or rear of one of the above engines, it may be due to the cast aluminum engine block may be porous in spots. Depending on the location of the leak, seal it with JB Weld or 3-Bond-coated sealing bolts.
Tech Spec: 100 Years of Changing Internal Combustion Technology
It would be interesting to hear what Nicolaus Otto, credited as the father of the first functional four-stroke IC engine, would say after seeing some of the advanced powerplants dropped into vehicles today.
Tech Feature: The Variables of Valve Timing
Today’s cylinder deactivation designs are used to reduce the fuel consumption and emissions of an internal combustion engine during light load operation.
Tech Feature: Northstar Supernova
Introduced in 1993, GM’s 4.6L 32-valve dual overhead cam all-aluminum V8 engine – housed in the Cadillac Allante, Eldorado and Seville STS – was considered a quantum leap forward for U.S. automakers. Initially rated at 295 horsepower, the Northstar V8 has grown over the years to an incredible 469 hp at 6,400 rpm (STS-V Supercharged Northstar engine).
Honda Tech Feature: Eliminating Brake Comebacks
The advent of ABS, and its integration into traction control and vehicle stability assist, make good work habits when servicing the brake