VIDEO: Test Your Fuel System Cleaner Knowledge
How much do you know about Complete Fuel System Cleaners? Counter Intelligence is Next!
Fuel Pump Pressure: Optimal Flow Factors
All too often, technicians assume fuel pressure is “good” without actually measuring it. 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 fuel rail and some fuel squirts out, then they assume the injectors have pressure.
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
Flex Fuel: Ethanol vs. Gasoline
For political and economic reasons, the use of ethanol gasoline in the U.S. has always been controversial.
Top 10 Fuel Pump Fails
Ten problems to be aware of when a vehicle’s fuel pump fails.
Automotive Fuel Pump Returns Stink. Literally
The same aroma of fuel that gets our adrenaline pumping at the local race track gives us a distinctly different feeling when we smell it at the front counter.
Mazda Pressure Breather Hose Frozen, DTC P0451
Some vehicles may experience a MIL on with only OTC P0451 stored in the memory. This is caused by water entering and freezing in the atmosphere breather hose of the fuel tank pressure (FTP) sensor.
Contaminated Fuel Can Wreck Havoc On Fuel Delivery Systems
Although cases involving contaminated gasoline are relatively rare nowadays, they still occur. In many cases, the technician has replaced the fuel pump or mass air flow (MAF) sensor to address a P0171/P0174 “lean-condition” DTC with no result. In all likelihood, the technician didn’t consider the possibility that the vehicle’s fuel might be contaminated with E85 gasoline, diesel fuel, stale gasoline, or, to a lesser degree, sugar and water.
Replacing Fuel Lines
As vehicles are lasting longer, the chances the fuel lines will spring a leak are increasing. The main reason metal fuel lines fail is corrosion, but most corrosion starts when abrasive materials start to remove the paint or coating on the line. This can occur at a mounting bracket or from debris kicked up from the tire.
Hyundai Fuel System & Emissions Diagnostics
Take a look at the fuel injection system and driveability issues on Hyundai’s line of vehicles.
