Directions: Turbocharging’s Not Just A Lot of Hot Air
In a recent study of U.S. consumers by Honeywell, more than half of those who plan to purchase a vehicle in the next two years believe fuel efficiency is more important than it was during their last vehicle purchase.
Tech Feature: Fueling the Future – Can You Fill Up with Alternative Fuels?
Currently gas prices have stabilized at around $1.83 a gallon, a price at which most Americans feel comfortable driving their SUVs, trucks, race cars, tow vehicles and other motorized toys. But when gas hits $4 and $5 a gallon, driving guzzlers becomes a challenge for many. It was only a few months ago that a barrel of crude oil was well over $100, a price that seemed to embed itself into the minds of most of us as we drove to wherever we were going. It felt like we ate a big triple scoop of ice cream way too fast as our wallets and gas monster SUVs were forced onto extreme diets ….
Tech Tip: Diagnosing Fuel Pumps and Injectors
One of the first questions that should always be answered when diagnosing a fuel-related complaint on a fuel-injected engine is, "What is the fuel pressure?" All too often, technicians assume fuel pressure is "good" without actually measuring it with a gauge. If the engine runs, they assume the injectors are getting adequate fuel pressure. If the engine cranks but won’t start, and they depress the service valve on the ….
Tech Feature: Diagnosing Fuel Pumps and Injectors
One of the first questions that should always be answered when diagnosing a fuel-related complaint on a fuel-injected engine is, “What is the fuel pressure?” All too often, technicians assume fuel pressure is “good” without actually measuring it with a gauge. If the engine runs, they assume the injectors are getting adequate fuel pressure. If
Directions: Highlights to GM’s Historic Anniversary
General Motors, which celebrates its 100-year anniversary this month, has provided the country and the automotive industry a rich and diverse history. Many achievements and some growing pains have occurred during this industry giant’s life. Here are just a few of these many industry-changing accomplishments. The staff at Underhood Service wishes General Motors another 100
Is There Enough Pressure? Fuel Injection Diagnosis & Service
One of the first questions that should always be asked — and answered — when diagnosing a fuel-related complaint on a fuel injected engine is, “What is the fuel pressure?” All too often, technicians assume fuel pressure is “good” without actually measuring it with a gauge. If the engine runs, they assume the injectors are
Bosch Celebrates 40th Anniversary of Fuel Injection, Supports System with 10,000 Related Components
Forty years since it introduced electronic fuel injection, Bosch continues to upgrade the technology as it supplies automobile manufacturers and the aftermarket around the world with the most advanced fuel injection systems available. Bosch provides the aftermarket with a comprehensive after sales service and replacement parts program ranging from the original D-Jetronic to the latest in Bosch technology systems.
Tech Tip: Understanding How a Fuel System Works is the First Step in Diagnosing a Problem
Electronic fuel injection systems come in several versions. Throttle Body Injection (TBI) was used in the 1980s on many vehicles as an intermediate step from electronic carburetion to multiport fuel injection. TBI uses one or two fuel injectors mounted in a throttle body to fuel the engine.
Electronic Fuel Injection Turns 40, Remains Vital Technology for Vehicle Performance
It’s turning 40 this year, yet electronic fuel injection continues to be a viable technology extremely beneficial to our everyday driving experience. That’s hardly surprising, as it plays such a pivotal role in determining the smooth driving and performance most of us take for granted in our cars, vans or SUVs.
GMC/Chevy Light Truck: Central Port Fuel Injection Diagnosis
Back in 1992, General Motors introduced a new type of fuel injection system known as “Central Port Injection” (CPI), which GM also refers to as “Central Multi-point Fuel Injection” (CMFI). The system was used on 4.3L V6 Vortec engines through 1995, and was redesigned in 1996 and renamed “Central Sequential Fuel Injection” (CSFI). The system